Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (3)

Search Parameters:
Keywords = Carya dabieshanensis

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
14 pages, 8437 KiB  
Article
Genetic Diversity and Landscape Genomics of Carya dabieshanensis (M.C. Liu and Z.J. Li) in a Heterogenous Habitat
by Huanhuan Li, Jiahong Hong, Jiaoyang Tian, Da Zhang, Ruifeng Yang, Guohua Xia and Youjun Huang
Forests 2025, 16(3), 455; https://doi.org/10.3390/f16030455 - 4 Mar 2025
Viewed by 690
Abstract
Carya dabieshanensis is a species of significant economic value due to its unique flavor and nutritional properties as a snack food, as well as its durable wood, which is highly suitable for furniture production. Known for its remarkable adaptability to environmental stress, this [...] Read more.
Carya dabieshanensis is a species of significant economic value due to its unique flavor and nutritional properties as a snack food, as well as its durable wood, which is highly suitable for furniture production. Known for its remarkable adaptability to environmental stress, this species serves as a valuable genetic resource for enhancing hickory cultivars. However, its restricted distribution and limited availability of high-quality germplasm have impeded large-scale cultivation and hindered industry development. While the genetic diversity and genomic basis of its environmental adaptation hold great promise for future breeding programs, no studies to date have utilized SNP markers to explore its genetic diversity or the genomic mechanisms underlying environmental adaptability. In this study, we analyzed 60 samples from 12 natural populations of C. dabieshanensis, representing its global distribution. Using the Carya illinoinensis (Wangenh. and K. Koch) genome as a reference, we employed Specific Locus Amplified Fragment Sequencing (SLAF-seq) to generate high-quality SNP data. By integrating population and landscape genomics approaches, we investigated the genetic structure and diversity of wild populations and identified key environmental factors driving genetic differentiation. Our population genomics analysis revealed 9,120,926 SNP markers, indicating substantial genetic diversity (π = 1.335 × 10−3 to 1.750 × 10−3) and significant genetic differentiation among populations (FST = 0.117–0.354). Landscape genomics analysis identified BIO3 (Isothermality), BIO6 (Min Temperature of Coldest Month), and BIO14 (Precipitation of Driest Month) as critical environmental factors shaping genetic diversity. This study provides essential insights into the genetic resources of C. dabieshanensis, facilitating the development of climate-resilient cultivars and offering a scientific foundation for the conservation and sustainable management of its wild populations. Full article
(This article belongs to the Section Forest Biodiversity)
Show Figures

Figure 1

18 pages, 4402 KiB  
Article
Impacts of Forest Management on the Biodiversity and Sustainability of Carya dabieshanensis Forests
by Cheng Huang, Songling Fu, Yinhao Tong, Xiaomin Ma, Feiyang Yuan, Yuhua Ma, Chun Feng and Hua Liu
Forests 2023, 14(7), 1331; https://doi.org/10.3390/f14071331 - 28 Jun 2023
Cited by 3 | Viewed by 2321
Abstract
Natural secondary Carya dabieshanensis forests comprise the natural wealth of the Dabie Mountains, which maintain the ecological balance of this region and enhance the incomes of farmers. However, forest ecosystems are being increasingly challenged due to increasing long-term anthropogenic development and management. Elucidating [...] Read more.
Natural secondary Carya dabieshanensis forests comprise the natural wealth of the Dabie Mountains, which maintain the ecological balance of this region and enhance the incomes of farmers. However, forest ecosystems are being increasingly challenged due to increasing long-term anthropogenic development and management. Elucidating the impacts of management intensity and duration on the diversity and stability of vegetation communities in natural secondary Carya dabieshanensis forests is of great significance toward achieving sustainable forest management. For this study, we compared the effects of three forest management intensities (no management (CK), extensive management (EM), and intensive management (IM)), and five management durations (0, 3, 8, 15, and 20 y) on species diversity and the stability of vegetation communities (trees, shrubs, and herbaceous layers) of a Carya dabieshanensis forest. Our results revealed that the diversity of the vegetation communities continued to decline following the onset of management activities. The diversity, dominance, evenness, and richness indices of the vegetation communities decreased by 53.37%–62.77%, 46.04%–59.17%, 32.58%–53.55%, and 50.18%–51.30%, respectively, after 20 y of forest management. Intensive management translated to species diversity loss more so than extensive management. All vegetation communities of the forest stands under study were generally unstable; however, the stability they did have was not at risk under greater management intensity and duration, and neither did greater species diversity enhance it. This study provides new evidence to support the non-synchronicity of species diversity and community stability in forest resident vegetation communities. Since the species diversity and structural composition of tree layers have a positive effect on community stability, so we suggest that both extensive and intensive forest lands need to retain or replant more tree species other than Carya dabieshanensis. Full article
Show Figures

Figure 1

12 pages, 1742 KiB  
Article
Characterization and Development of Genomic SSRs in Pecan (Carya illinoinensis)
by Chengcai Zhang, Xiaohua Yao, Huadong Ren, Jun Chang, Jun Wu, Weizhong Shao and Qing Fang
Forests 2020, 11(1), 61; https://doi.org/10.3390/f11010061 - 4 Jan 2020
Cited by 13 | Viewed by 3557
Abstract
Research Highlights: The distribution of simple sequence repeat (SSR) motifs in two draft genomes of pecan was evaluated. Sixty-six SSR loci were validated by PCR amplification in pecan. Twenty-two new development markers can be used for genetic study in genus Carya. [...] Read more.
Research Highlights: The distribution of simple sequence repeat (SSR) motifs in two draft genomes of pecan was evaluated. Sixty-six SSR loci were validated by PCR amplification in pecan. Twenty-two new development markers can be used for genetic study in genus Carya. Background and Objectives: Pecan has good nutritional and health benefits and is an important crop worldwide. However, the genetic research in this species is insufficient. One of the main reasons for this is the lack of enough accurate, convenient, and economical molecular markers. Among different marker types, SSR loci are enormously useful in genetic studies. However, the number of SSRs in C. illinoinensis (Wangenh.) K. Koch is limited. Materials and Methods: The distribution of SSR motifs in the pecan genome was analyzed. Then, the primers for each SSR were designed. To evaluate their availability, 74 SSR loci were randomly selected and amplified in pecan. Finally, 22 new SSRs and eight former ones were picked to evaluate the genetic diversity in 60 pecan genotypes and to determine their transferability in other Carya species. Results: 145,714 and 143,041 SSR motifs were obtained from two draft genomes of ‘87MX3-2’ and ‘Pawnee’, respectively. In total, 9145 candidate primers were obtained. Sixty-six (89.19%) primers amplified the target products. Among the 30 SSRs, 29 loci showed polymorphism in 60 pecan genotypes. The polymorphic information content (PIC) values ranged from 0.012 to 0.906. In total, 26, 25, and 22 SSRs can be used in C. cathayensis Sarg., C. dabieshanensis W. C. Cheng & R. H. Chang, and C. hunanensis W.C. Liu, respectively. Finally, the dendrogram of all individuals was constructed. The results agree with the geographic origin of the four species and the pedigree relationships between different pecan cultivars. Conclusions: The characterization of SSRs in the pecan genome and the new SSRs will promote the progress of genetic study and breeding in pecan, as well as other species of genus Carya. Full article
(This article belongs to the Section Forest Ecophysiology and Biology)
Show Figures

Figure 1

Back to TopTop