Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline

Journals

remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline

Article Types

Countries / Regions

remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline

Search Results (373)

Search Parameters:
Keywords = Kinship

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
17 pages, 265 KiB  
Article
Who I Am, and Why That Matters
by Louise Rak, Elsie Randall, Meaghan Katrak-Harris and Tamara Blakemore
Youth 2025, 5(3), 83; https://doi.org/10.3390/youth5030083 - 6 Aug 2025
Abstract
Where we find and form identity and belonging, meaning and purpose, is often entangled in the dynamics that play out between people and place, and for Aboriginal and Torres Strait Islander Peoples, the legacy and ongoing experience of invasion and colonisation. Place-based understandings [...] Read more.
Where we find and form identity and belonging, meaning and purpose, is often entangled in the dynamics that play out between people and place, and for Aboriginal and Torres Strait Islander Peoples, the legacy and ongoing experience of invasion and colonisation. Place-based understandings of identity and its importance in shaping young people’s experience of what is possible and probable in their futures might be critical to framing cross-cultural work with young people impacted by violence and trauma. This paper draws on practitioner reflections of work with young Aboriginal women both on, and off Country, highlighting common and distinct themes related to identity formation and migration in navigating new futures. These include connection to Country and spiritual connection, family and kinship relationships, Women’s Business and felt cultural safety. The findings illustrate a meaningful parallel instructive to practice; for both young women and practitioners, access to cultural knowledge and connection is strengthened by endorsement and in turn strengthens understanding and experienced safety. This work emphasises the importance of creating culturally connected opportunities, sensitive to dynamics of place, to support positive identity expression and wellbeing. Full article
24 pages, 4701 KiB  
Article
Evidence of Graft Incompatibility and Rootstock Scion Interactions in Cacao
by Ashley E. DuVal, Alexandra Tempeleu, Jennifer E. Schmidt, Alina Puig, Benjamin J. Knollenberg, José X. Chaparro, Micah E. Stevens and Juan Carlos Motamayor
Horticulturae 2025, 11(8), 899; https://doi.org/10.3390/horticulturae11080899 (registering DOI) - 3 Aug 2025
Viewed by 197
Abstract
This study sought to quantify and characterize diverse rootstock scion interactions in cacao around graft compatibility, disease resistance, nutrient use efficiency, vigor traits, and translocation of nonstructural carbohydrates. In total, 106 grafts were performed with three scion cultivars (Matina 1/6, Criollo 22, Pound [...] Read more.
This study sought to quantify and characterize diverse rootstock scion interactions in cacao around graft compatibility, disease resistance, nutrient use efficiency, vigor traits, and translocation of nonstructural carbohydrates. In total, 106 grafts were performed with three scion cultivars (Matina 1/6, Criollo 22, Pound 7) and nine diverse open-pollinated seedling populations (BYNC, EQX 3348, GNV 360, IMC 14, PA 107, SCA 6, T 294, T 384, T 484). We found evidence for both local and translocated graft incompatibility. Cross sections and Micro-XCT imaging revealed anatomical anomalies, including necrosis and cavitation at the junction and accumulation of starch in the rootstock directly below the graft junction. Scion genetics were a significant factor in explaining differences in graft take, and graft take varied from 47% (Criollo 22) to 72% (Pound 7). Rootstock and scion identity both accounted for differences in survival over the course of the 30-month greenhouse study, with a low of 28.5% survival of Criollo 22 scions and a high of 72% for Pound 7 scions. Survival by rootstocks varied from 14.3% on GNV 360 to 100% survival on T 294 rootstock. A positive correlation of 0.34 (p = 0.098) was found between the graft success of different rootstock–scion combinations and their kinship coefficient, suggesting that relatedness of stock and scion could be a driver of incompatibility. Significant rootstock–scion effects were also observed for nutrient use efficiency, plant vigor, and resistance to Phytophthora palmivora. These findings, while preliminary in nature, highlight the potential of rootstock breeding to improve plant nutrition, resilience, and disease resistance in cacao. Full article
(This article belongs to the Special Issue Advances in Tree Crop Cultivation and Fruit Quality Assessment)
Show Figures

Figure 1

17 pages, 3038 KiB  
Article
Neighbor Relatedness Contributes to Improvement in Grain Yields in Rice Cultivar Mixtures
by You Xu, Qin-Hang Han, Shuai-Shuai Xie and Chui-Hua Kong
Plants 2025, 14(15), 2385; https://doi.org/10.3390/plants14152385 - 2 Aug 2025
Viewed by 248
Abstract
The improvement in yield in cultivar mixtures has been well established. Despite increasing knowledge of the improvement involving within-species diversification and resource use efficiency, little is known about the benefits arising from relatedness-mediated intraspecific interactions in cultivar mixtures. This study used a relatedness [...] Read more.
The improvement in yield in cultivar mixtures has been well established. Despite increasing knowledge of the improvement involving within-species diversification and resource use efficiency, little is known about the benefits arising from relatedness-mediated intraspecific interactions in cultivar mixtures. This study used a relatedness gradient of rice cultivars to test whether neighbor relatedness contributes to improvements in grain yields in cultivar mixtures. We experimentally demonstrated the grain yield of rice cultivar mixtures with varying genetic relatedness under both field and controlled conditions. As a result, a closely related cultivar mixture had increased grain yield compared to monoculture and distantly related mixtures by optimizing the root-to-shoot ratio and accelerating flowering. The benefits over monoculture were most pronounced when compared to the significant yield reductions observed in distantly related mixtures. The relatedness-mediated improvement in yields depended on soil volume and nitrogen use level, with effects attenuating under larger soil volumes or nitrogen deficiency. Furthermore, neighbor relatedness enhanced the richness and diversity of both bacterial and fungal communities in the rhizosphere soil, leading to a significant restructuring of the microbial community composition. These findings suggest that neighbor relatedness may improve the grain yield of rice cultivar mixtures. Beneficial plant–plant interactions may be generated by manipulating cultivar kinship within a crop species. A thorough understanding of kinship strategies in cultivar mixtures offers promising prospects for increasing crop production. Full article
(This article belongs to the Special Issue Plant Chemical Ecology—2nd Edition)
Show Figures

Figure 1

12 pages, 2564 KiB  
Article
Genetic Diversity and Population Structure Analysis of Luhua chickens Based on Genome-Wide Markers
by Qianwen Yang, Wei Han, Jun Yan, Chenghao Zhou, Guohui Li, Huiyong Zhang, Jianmei Yin and Xubin Lu
Animals 2025, 15(14), 2071; https://doi.org/10.3390/ani15142071 - 14 Jul 2025
Viewed by 268
Abstract
The Luhua chicken is an outstanding local breed in China that has been placed under conservation due to the impact of specialized breeding and the widespread adoption of commercial varieties. As such, this study analyzed reproductive traits across three consecutive generations and utilized [...] Read more.
The Luhua chicken is an outstanding local breed in China that has been placed under conservation due to the impact of specialized breeding and the widespread adoption of commercial varieties. As such, this study analyzed reproductive traits across three consecutive generations and utilized whole-genome resequencing data from 60 Luhua chickens to assess conservation efficacy through genetic diversity, run of homozygosity (ROH) distribution, kinship, and population structure so as to better conserve the breed. The results show that, across generations, the body weight at first egg increased, the age at first egg was delayed, and the egg weight at first laying increased. No significant variations were found in the body weight at 300 d or the total egg number. The key genetic parameters of the polymorphism information content (PIC), expected heterozygosity (HE), observed heterozygosity (HO), and mean identical-by-state (IBS) distance were 0.234, 0.351, 0.277, and 0.782, respectively. The majority of ROHs ranged from 0.5 to 1 Mb, and the inbreeding coefficient based on ROHs was calculated at 0.021. The findings reveal that these traits remained unchanged across the three generations. Our research suggests that optimizing the mating plan of Luhua chickens is essential to minimize inbreeding risk. Furthermore, the methodology applied in this study provides a valuable reference for the conservation monitoring of other indigenous chicken breeds. Full article
Show Figures

Figure 1

23 pages, 385 KiB  
Article
The Syntax of Null Possessors with Kinship Terms and Body Part Nouns in Vietnamese
by Andrew Simpson and Linh Pham
Languages 2025, 10(7), 158; https://doi.org/10.3390/languages10070158 - 27 Jun 2025
Viewed by 308
Abstract
Bare nouns representing kinship terms (KNs) and body parts (BPNs) can be assumed to project a null possessor argument, which allows for the interpretation of such nouns relative to other linguistically present NPs. In Vietnamese, the distribution of KNs and BPNs is subject [...] Read more.
Bare nouns representing kinship terms (KNs) and body parts (BPNs) can be assumed to project a null possessor argument, which allows for the interpretation of such nouns relative to other linguistically present NPs. In Vietnamese, the distribution of KNs and BPNs is subject to different locality conditions and leads to the analysis of null possessors with KNs as covert anaphors, while null possessors with BPNs are null pronominals (pro). This contrasts with Mandarin Chinese, where it has been suggested that null possessors of KNs and BPNs are two different types of null anaphors. The observed distributional differences and analyses of bare KNs and BPNs in Vietnamese vs. Chinese raise questions of parametric variation with regard to null elements with parallel interpretive properties and also whether linking mechanisms may occur with other bare nouns without the projection of null possessors that are subject to binding theoretic locality restrictions. Full article
(This article belongs to the Special Issue Current Issues in Vietnamese Linguistics)
16 pages, 233 KiB  
Article
Family Chains: Kinship as a Mechanism of Labour Exploitation Among Bangladeshi Migrant Workers in Manufacturing and Labour-Intensive Sectors
by Abdelaziz Abdalla Alowais and Abubakr Suliman
Societies 2025, 15(7), 178; https://doi.org/10.3390/soc15070178 - 25 Jun 2025
Viewed by 320
Abstract
The purpose of this study was to explore the role of kinship-based control, which serves as a mechanism of labour exploitation among Bangladeshi migrant workers in manufacturing and labour-intensive sectors in the Northern Emirates. The current study explores different case studies regarding participants [...] Read more.
The purpose of this study was to explore the role of kinship-based control, which serves as a mechanism of labour exploitation among Bangladeshi migrant workers in manufacturing and labour-intensive sectors in the Northern Emirates. The current study explores different case studies regarding participants dominated by familial control mechanisms that lead to Bangladeshi migrant workers finding themselves in vulnerable situations. This study incorporated an ethnographic research method. Data was gathered through participant observation, document analysis, and semi-structured interviews. The study includes different participant cases, including accounts from Bangladeshi migrant workers and their family members. In-depth interviews were conducted with a total of twelve participants to understand the experiences of Bangladeshi migrant workers and analyzed using a thematic approach. The findings of this study reveal six major themes: moral blackmail, isolation within the family, moral obligation and silence, familial control structures, abuse framed as duty, and informal hierarchies. This study shows that the existing labour mechanism is challenging for Bangladeshi workers, requiring strict attention from the host country to address challenges related to cultural obligations, the minimum wage, restricted movement, and harsh working conditions. It is implied that Bangladesh must make policy changes to create protective migration policies, establish worker independence, and provide pre-departure welfare programmes. Educational programmes developed by NGOs and public officials must include widespread awareness initiatives to heighten the focus on migrants and their family members and break unsustainable cultural standards. The novel aspect of this study lies in the fact that it explores family-based labour exploitation, which is rarely studied in migration research. Full article
25 pages, 4472 KiB  
Article
Connections Across the Colonial Divide: The Colenso Family and the Zulu Royal Family in Natal and Zululand
by Gwilym Colenso
Genealogy 2025, 9(2), 63; https://doi.org/10.3390/genealogy9020063 - 18 Jun 2025
Viewed by 430
Abstract
In late nineteenth-century Natal, members of the family of the missionary Bishop John William Colenso established relations with members of the Zulu royal family that were recognised as ties of kinship, mutually acknowledged by the reciprocal use of kinship terms between the two [...] Read more.
In late nineteenth-century Natal, members of the family of the missionary Bishop John William Colenso established relations with members of the Zulu royal family that were recognised as ties of kinship, mutually acknowledged by the reciprocal use of kinship terms between the two families. The Colenso family played a part in the struggle to defend Zulu sovereignty in the face of a colonial government intent on undermining the Zulu nation by diminishing the authority of the Zulu King. The visit by the Zulu king, Cetshwayo, to Queen Victoria in 1882 was seen by subsequent generations of Zulu as evidence of a connection between the British and Zulu royal families. While in exile on the island of St Helena, through adopting western dress and lifestyle, Cetshwayo’s son, Dinuzulu, sought to model his family on the British royal family. Bishop Colenso’s daughter, Harriette, played a role in facilitating this image, appearing as if a matriarch of Dinuzulu’s family in photographs which were perhaps intended to compare the two royal families, while also conveying a strong message that succession to the throne was secured by heredity, a message conveyed in representations of the British royal family from the sixteenth century to the present. Full article
(This article belongs to the Special Issue Colonial Intimacies: Families and Family Life in the British Empire)
Show Figures

Figure 1

21 pages, 7192 KiB  
Article
Study on Spatial Adaptability of Tangjia Village in the Weibei Loess Plateau Gully Region Based on Diverse Social Relationships
by Qin He, Guochen Zhang, Jizhe Zhou, Xintong Zhao, Ruiqi Dong and Quanhua Hou
Land 2025, 14(6), 1290; https://doi.org/10.3390/land14061290 - 17 Jun 2025
Viewed by 484
Abstract
In the context of rapid urbanization, traditional villages in the Weibei Loess Plateau gully region are facing compounded pressures from social structure disruption and physical space reconstruction. It is urgent to deeply analyze the influence mechanism of social relations on spatial adaptability. This [...] Read more.
In the context of rapid urbanization, traditional villages in the Weibei Loess Plateau gully region are facing compounded pressures from social structure disruption and physical space reconstruction. It is urgent to deeply analyze the influence mechanism of social relations on spatial adaptability. This study attempts to construct an analytical framework that couples social relationships with village spatial development. With Tangjia Village in the gully region of the Weibei Loess Plateau as an example, the study integrated various data sources such as satellite imagery, interviews, and policy documents. Through social network analysis and an improved cascade failure model, the spatial adaptation processes and characteristics based on changes in kinship, occupational ties, and geographical networks were explored. The findings indicate that (1) before 2001, kinship networks led to the formation of a monocentric settlement structure. From 2001 to 2011, occupational ties fostered the differentiation of industrial and residential zones. After 2011, geographical networks drove the multifunctional integration of space. (2) Clan-based settlement zones (consisting of 80 kinship nodes) and core cultural tourism facilities are key units in maintaining spatial adaptability. The research reveals the impact mechanism of social network fission on spatial function reorganization and proposes adaptive planning strategies, aiming to provide theoretical and practical value for the coordinated governance of society and space in traditional villages. Full article
Show Figures

Figure 1

19 pages, 437 KiB  
Article
Diversity and Semiconvergents in Pythagorean Tuning
by Rafael Cubarsi
Axioms 2025, 14(6), 471; https://doi.org/10.3390/axioms14060471 - 17 Jun 2025
Viewed by 340
Abstract
Several approaches to building generalized Pythagorean scales provide interpretation for the rational approximation of an irrational number. Generally, attention is paid to the convergents of the continued fraction expansions. The present paper focuses on the sequences of semiconvergents corresponding to the alternating best [...] Read more.
Several approaches to building generalized Pythagorean scales provide interpretation for the rational approximation of an irrational number. Generally, attention is paid to the convergents of the continued fraction expansions. The present paper focuses on the sequences of semiconvergents corresponding to the alternating best one-sided approximations. These sequences are interpreted as scale lineages organized as a kinship. Their properties are studied in terms of the two types of tones and elementary intervals, since each scale contains the tones of the previous scale plus the newly added tones, i.e., the generic diatones and accidentals. For the last scale of a lineage, the octave is regularly subdivided by sections, separated by a single elementary interval of the other type. Lineages are therefore related to the scale diversity with regard to their generic diatones and accidentals, which is analyzed from the Shannon diversity index, either for tone abundance or interval occupancy. Full article
(This article belongs to the Special Issue Applied Mathematics and Numerical Analysis: Theory and Applications)
Show Figures

Graphical abstract

21 pages, 808 KiB  
Article
First Nations Child Removal and New South Wales Out-of-Home Care: A Historical Analysis of the Motivating Philosophies, Imposed Policies, and Underutilised Recommendations
by James C. Beaufils
Genealogy 2025, 9(2), 62; https://doi.org/10.3390/genealogy9020062 - 9 Jun 2025
Viewed by 859
Abstract
Interactions between First Nations and non-Indigenous Australians have long been shaped by notions of Western authority and First Nations inferiority, both culturally and biologically. From invasion to the present day, forced removals and intergenerational trauma have deeply affected First Nations Australians, particularly through [...] Read more.
Interactions between First Nations and non-Indigenous Australians have long been shaped by notions of Western authority and First Nations inferiority, both culturally and biologically. From invasion to the present day, forced removals and intergenerational trauma have deeply affected First Nations Australians, particularly through the operations of interacting colonial systems, including child removals and placements. Throughout the 20th century, systematic child removals led to the Stolen Generations, a tragic example of power imbalances, paternalism, and Western ideals, perpetuating trauma across generations. This article examines the context of First Nations removals by the state under the lies of benevolence, exposing the evolution of the colonial system and the systematic dislocation of culture and identity. It highlights the social, legal, and political factors that enabled removal practices and their enduring consequences, including the legacy of forced child separations and cultural erasure. This article argues that policies of absorption and assimilation served to further isolate children from their families, communities, and kinship networks. In doing so, it contends that the systematic disruption of First Nations communities is part of an ongoing process of subjugation, continuing the colonial agenda of cultural and familial disintegration. Full article
Show Figures

Figure 1

18 pages, 476 KiB  
Article
Indigenous Abolition and the Third Space of Indian Child Welfare
by Theresa Ysabel Rocha Beardall
Genealogy 2025, 9(2), 59; https://doi.org/10.3390/genealogy9020059 - 31 May 2025
Viewed by 1157
Abstract
This article introduces the Third Space of Indian child welfare to theorize how Indigenous nations simultaneously engage and disrupt settler legal systems while building sovereign, care-based alternatives. Drawing from legal analysis, Indigenous political thought, and sociohistorical synthesis, I trace the historical continuity from [...] Read more.
This article introduces the Third Space of Indian child welfare to theorize how Indigenous nations simultaneously engage and disrupt settler legal systems while building sovereign, care-based alternatives. Drawing from legal analysis, Indigenous political thought, and sociohistorical synthesis, I trace the historical continuity from boarding schools to today’s foster care removals, showing how child welfare operates as a colonial apparatus of family separation. In response, Native nations enact governance through three interrelated strategies: strategic legal engagement, kinship-based care, and tribally controlled family collectives. Building on Bruyneel’s theory of third space sovereignty, Simpson’s nested sovereignty, and Lightfoot’s global Indigenous rights framework, I conceptualize the Third Space as a dynamic field of Indigenous governance that transcends binary settler logics. These practices constitute sovereign abolitionist praxis. They reclaim kinship, resist carceral systems, and build collective futures beyond settler rule. Thus, rather than treating the Indian Child Welfare Act (ICWA) as a federal safeguard, I argue that tribes have repurposed ICWA as a legal and political vehicle for relational governance. This reframing challenges dominant crisis-based narratives and positions Indigenous child welfare as the center of a “global Indigenous politics of care” with implications for theories of sovereignty, family, and abolitionist futures across disciplines, geographies, and social groups. The article concludes by reflecting on the broader implications of the Third Space for other Indigenous and minoritized communities navigating state control and asserting self-determined care. Full article
(This article belongs to the Special Issue Self Determination in First Peoples Child Protection)
Show Figures

Figure 1

19 pages, 2882 KiB  
Article
Population Genomics and Application for Growth Improvement of Domesticated Asian Seabass Lates calcarifer from Thailand
by Bavornlak Khamnamtong, Atra Chaimongkol, Sirikan Prasertlux, Sirithorn Janpoom, Jutaporn Chaimongkol, Sureerat Tang, Wanwipa Ittarat, Putth Songsangjinda, Takashi Sakamoto, Panya Sae-Lim and Sirawut Klinbunga
Diversity 2025, 17(6), 383; https://doi.org/10.3390/d17060383 - 29 May 2025
Viewed by 467
Abstract
A breeding program of Asian seabass (Lates calcarifer, also called barramundi) was established for sustainable aquaculture in Thailand. Estimated breeding values (EBVs) for growth of the base population (G0, 51 families, N = 1655) were evaluated. Fish exhibited either high (HEBV, [...] Read more.
A breeding program of Asian seabass (Lates calcarifer, also called barramundi) was established for sustainable aquaculture in Thailand. Estimated breeding values (EBVs) for growth of the base population (G0, 51 families, N = 1655) were evaluated. Fish exhibited either high (HEBV, averaged body weight = 1036.80 ± 250.80 g, N = 133) or low (LEBV, averaged body weight = 294.50 ± 167.20 g, N = 147) growth EBVs, and their parental fish (N = 26) were analyzed by Specific Locus Amplified Fragment Sequencing (SLAF-Seq). An average of 159,769 SLAF tags/sample was generated, covering 13.79-fold of the genome size, and 225,498 SNPs were applied for population genomics. Observed (Ho) and expected (He) heterozygosity values were 0.224 and 0.308, 0.178 and 0.246, and 0.184 and 0.305, respectively. Polymorphic information content (PIC) ranged from 0.205–0.251. A selective sweep was performed based on Fst, and nucleotide polymorphism (π) revealed significant differences between allelic contents of growth- and immune-related genes in HEBV and LEBV populations. Kinship analysis revealed that 84.38% of examined fish showed r values < 0.2, and population admixture analysis revealed three subpopulations in HEBV and four subpopulations in LEBV groups. Fish that possessed a single cluster were found in each subgroup of both populations, along with those exhibiting mixed ancestral clusters. This information is critically important for further applications in our ongoing seabass improvement breeding program. Full article
Show Figures

Figure 1

15 pages, 251 KiB  
Article
An Inheritance Saga: Migration, Kinship, and Postcolonial Bureaucracy in the Llorente vs. Llorente Case of Nabua, Philippines
by Dada Docot
Humans 2025, 5(2), 15; https://doi.org/10.3390/humans5020015 - 29 May 2025
Viewed by 1072
Abstract
The landmark Philippine Supreme Court case Llorente vs. Llorente illuminates the complex intersections of transnational migration, inheritance law, and colonial legacies in the Philippines. The case centers on Lorenzo Llorente, a Filipino US Navy serviceman whose estate became the subject of a fifteen-year [...] Read more.
The landmark Philippine Supreme Court case Llorente vs. Llorente illuminates the complex intersections of transnational migration, inheritance law, and colonial legacies in the Philippines. The case centers on Lorenzo Llorente, a Filipino US Navy serviceman whose estate became the subject of a fifteen-year legal battle between his first wife Paula and his second wife Alicia. Lorenzo returned from the battles of World War II to find his wife in Nabua living with his brother and pregnant with his brother’s child. Lorenzo obtained a divorce in California in 1952. He later returned to the Philippines and married Alicia, naming her and their three adopted children as heirs in his will. Upon his death in 1985, Paula challenged the validity of the US divorce and claimed rights to Lorenzo’s estate under Philippine succession laws. While lower courts initially favored Paula’s claims by rigidly applying Philippine laws that are rooted in the colonial era and privileged blood relations, the Supreme Court ultimately upheld Lorenzo’s will in 2000, recognizing his right to divorce as a US citizen. This case reveals how postcolonial Philippine legal frameworks, still heavily influenced by Spanish colonial law, often fail to accommodate the complex realities of transnational families and diverse kinship practices, instead imposing rigid interpretations that fracture rather than heal family relations. Inheritance, previously a highly shared and negotiated process mediated by the elders, can now escalate to family disputes which play out in the impersonal space of the courtroom. Full article
19 pages, 13505 KiB  
Article
Genome-Wide Resequencing Revealed the Genetic Diversity of Fraxinus platypoda Oliv. in Northwestern China
by Ying Liu, Wanting Ge, Qiuling Zhao, Jing Zhang, Xiaolong Guo and Wenjun Ma
Forests 2025, 16(5), 860; https://doi.org/10.3390/f16050860 - 21 May 2025
Viewed by 388
Abstract
Fraxinus platypoda Oliv. (Oleaceae), an ecologically and economically valuable tree species with key distribution areas in northwestern China, faces conservation challenges due to its fragmented groups and scarce individual numbers. To investigate the genetic consequences of this demographic crisis, we analyzed 65 individuals [...] Read more.
Fraxinus platypoda Oliv. (Oleaceae), an ecologically and economically valuable tree species with key distribution areas in northwestern China, faces conservation challenges due to its fragmented groups and scarce individual numbers. To investigate the genetic consequences of this demographic crisis, we analyzed 65 individuals from 11 natural groups in this region using whole-genome resequencing. We identified a total of 60,503,092 single nucleotide polymorphisms (SNPs), and after further filtering, retained 3,394,299 SNPs for subsequent analysis. Population structure analysis (Neighbor-Joining tree, STRUCTURE, and kinship coefficients) revealed two distinct genetic clusters (K = 2), with principal component analysis (PCA) confirming this subdivision. Cluster I, composed of eight individuals from Groups 3, 5, 8, and 11, is highly differentiated from Cluster II and may be ancestral to it. Among the 11 groups, Groups 3 and 11 show a high genetic diversity and differentiation, with Tajima’s D > 0, indicating a long evolutionary history and balancing selection. The remaining nine groups have a low diversity, low differentiation, and frequent gene flow, with Tajima’s D < 0, suggesting directional selection. A mantel test showed no significant link between genetic variation and geographic isolation (p = 0.460). The high differentiation of Cluster I and gene flow of Cluster II are maintained by factors like evolutionary history and reproductive systems. Groups 3 and 11 are highlighted as important genetic resources deserving priority protection. This study offers key genomic data for conserving fragmented tree species and future adaptability research. Full article
(This article belongs to the Section Genetics and Molecular Biology)
Show Figures

Figure 1

15 pages, 714 KiB  
Article
Projected Demographic Trends in the Likelihood of Having or Becoming a Dementia Family Caregiver in the U.S. Through 2060
by Esther M. Friedman, Jessie Wang, Margaret M. Weden, Mary E. Slaughter, Regina A. Shih and Carolyn M. Rutter
Populations 2025, 1(2), 10; https://doi.org/10.3390/populations1020010 - 20 May 2025
Viewed by 1027
Abstract
This study predicts how sociodemographic trends—smaller family sizes, increased longevity, and marital patterns—could affect family care for people with dementia through 2060. By coupling dementia information from the Health and Retirement Study with a well-established kinship microsimulation model, we analyze the impact of [...] Read more.
This study predicts how sociodemographic trends—smaller family sizes, increased longevity, and marital patterns—could affect family care for people with dementia through 2060. By coupling dementia information from the Health and Retirement Study with a well-established kinship microsimulation model, we analyze the impact of demographic changes on the future care landscape, focusing on changes in race and gender differences in two key areas: (1) the availability of family caregivers for people with dementia, and (2) the likelihood of having a family member with dementia, among those without dementia. Our model projections suggest that future dementia cohorts will be more likely to have a living spouse than the current ones, with diminishing gender disparities due to increased male longevity. However, racial disparities will persist, particularly for Black women. The likelihood of older adults lacking spouses, children, and siblings will increase, but remain low. For potential caregivers, we predict an increased likelihood and longer duration of exposure to family members with dementia in future birth cohorts, particularly for Black individuals, potentially placing more people at risk of the adverse health and well-being outcomes associated with caregiving. Full article
Show Figures

Figure 1

Back to TopTop