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Agronomy
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Advances in Legume Genetics and Genomics from Mendelian to NGS...
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Advances in Legume Genetics and Genomics from Mendelian to NGS Era

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Crop Breeding and Genetics".

Deadline for manuscript submissions: closed (10 September 2024) | Viewed by 1437

Special Issue Editor

Dr. Manosh Kumar Biswas

E-Mail Website
Guest Editor
Department of Genetics and Genome Biology, University of Leicester, Leicester LE1 7RH, UK
Interests: molecular markers; genetic diversity; genotyping; genetic analysis; genetics; bioinformatics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Legumes are multipurpose crop species that are widely used in our daily life for feed and fodder. They contribute approximately 30% of the world’s crop production, and legume crops contribute 33% of human dietary protein. The world population will soon reach 8 billion, and in order to ensure food security for this population, there is an urgent need for sustainable agriculture and an increase in food production through cultivar improvements applying modern technology including classical breeding, molecular breeding, and multi-omics approaches. Since Mendel’s discovery, biological sciences have made remarkable progress. The legume research community utilizes the advantages of this modern technology and tools to improve legume cultivars in order to meet the global challenges and increasing productivity.

This Issue is an opportunity for the legume research community to share their innovations, progress, and knowledge in the field of legume sustainable agronomy-agriculture, genetics, genomics, multi-omics data, and bio-informatics. Original research articles and concepts for review articles to address major issues are welcome.

The focus of this Special Issue includes articles related to the following topics:

  • Legume classical breeding and agronomical practice for cultivar improvements.
  • Genome-wide molecular marker development and its utility for legume breeding, diversity, and population genetics.
  • Whole-genome sequencing, assembly, annotation, and comparative genomics.
  • Gene family identification, evolution, and functional characterization.
  • Genetic mapping, GWAS, and QTLs.
  • Multi-omics data analysis and database.
  • Bio-informatics tools for legume breeding genetics and genomics.

Dr. Manosh Kumar Biswas
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agronomy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • molecular markers
  • genetic diversity
  • population genetics
  • next-generation sequencing
  • functional genomics
  • transcriptomic
  • bioinformatics

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

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Research

14 pages, 1995 KiB  
Article
Contrasting Dynamic Photoprotective Mechanisms under Fluctuating Light Environments between an Andean and a Mesoamerican Genotype of Phaseolus vulgaris L.
by Andrew Ogolla Egesa, Voraruthai Puengchanchaikul, C. Eduardo Vallejos and Kevin Begcy
Agronomy 2024, 14(9), 1907; https://doi.org/10.3390/agronomy14091907 - 26 Aug 2024
Viewed by 386
Abstract
Plants have evolved various photosynthetic adaptations and photoprotective mechanisms to survive in fluctuating and extreme light environments. Many light-activated photosynthetic proteins and enzymes adjust to plant leaf anatomy and leaf pigments to facilitate these processes. Under excessive amounts of light, plants use non-photochemical [...] Read more.
Plants have evolved various photosynthetic adaptations and photoprotective mechanisms to survive in fluctuating and extreme light environments. Many light-activated photosynthetic proteins and enzymes adjust to plant leaf anatomy and leaf pigments to facilitate these processes. Under excessive amounts of light, plants use non-photochemical quenching (NPQ) mechanisms to dissipate excess absorbed light energy as heat to prevent photoinhibition and, therefore, mitigate damage to the plant’s photosystems. In this study, we examined photosynthetic adaptations to the light environment in common beans using representative genotypes of the Andean (Calima) and the Mesoamerican (Jamapa) gene pools. We estimated their leaf chlorophyll fluorescence characteristics using dark- and light-adapted mature leaves from three-week-old plants. Our results indicated a higher chlorophyll fluorescence of the light-adapted leaves in the Mesoamerican genotype. NPQ induction was early and extended in the Andean genotype. A similar response in the Mesoamerican counterpart required high light intensity (≥1500 PAR). The NPQ relaxation was rapid in the Mesoamerican genotype (t1/2: 6.76 min) but sluggish in the Andean genotype (t1/2: 9.17 min). These results indicated variable adaptation to light environments between the two common bean genotypes and suggested different strategies for surviving fluctuating light environments that can be exploited for developing plants with environmentally efficient photosynthesis under light limitations. Full article
(This article belongs to the Special Issue Advances in Legume Genetics and Genomics from Mendelian to NGS Era)
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20 pages, 22440 KiB  
Article
Genome-Wide Identification and Expression Analysis of Heat Shock Protein 20 (HSP20) Gene Family in Response to High-Temperature Stress in Chickpeas (Cicer arietinum L.)
by Sushuang Liu, Yizhou Wu, Yang Li, Zaibao Zhang, Dandan He, Jianguo Yan, Huasong Zou and Yanmin Liu
Agronomy 2024, 14(8), 1696; https://doi.org/10.3390/agronomy14081696 - 1 Aug 2024
Viewed by 462
Abstract
Chickpeas (Cicer arietinum L.) are an important legume crop known for their rich nutrient content, including proteins, carbohydrates, and minerals. Thus, they are enjoyed by people worldwide. In recent years, the production scale of chickpeas has been growing gradually. The planting area [...] Read more.
Chickpeas (Cicer arietinum L.) are an important legume crop known for their rich nutrient content, including proteins, carbohydrates, and minerals. Thus, they are enjoyed by people worldwide. In recent years, the production scale of chickpeas has been growing gradually. The planting area of chickpeas represents roughly 35–36% of the total planting area, and the output of the beans is roughly 47–48%. However, the growth and development process of chickpeas is limited by a number of factors, including high temperature, drought, salt stress, and so forth. In particular, high temperatures can reduce the germination rate, photosynthesis, seed setting rate, and filling rate of chickpeas, restricting seed germination, plant growth, and reproductive growth. These changes lead to a decrease in the yield and quality of the crop. Heat shock proteins (HSPs) are small proteins that play an important role in plant defense against abiotic stress. Therefore, in the present study, HSP20 gene family members were identified based on the whole-genome data of chickpeas, and their chromosomal positions, evolutionary relationships, promoter cis-acting elements, and tissue-specific expression patterns were predicted. Subsequently, qRT-PCR was used to detect and analyze the expression characteristics of HSP20 genes under different temperature stress conditions. Ultimately, we identified twenty-one HSP20 genes distributed on seven chromosomes, and their gene family members were found to be relatively conserved, belonging to ten subfamilies. We also found that CaHSP20 promoter regions have many cis-acting elements related to growth and development, hormones, and stress responses. In addition, under high-temperature stress, the relative expression of CaHSP20-17, CaHSP20-20, CaHSP20-7, CaHSP20-3, and CaHSP20-12 increased hundreds or even thousands of times as the temperature increased from 25 °C to 42 °C. Among them, excluding CaHSP20-5, the other five genes all contain 1-2 ABA cis-regulatory elements. This finding indicates that CaHSP20s are involved in the growth and development of chickpeas under heat stress, and the mechanisms of their responses to high-temperature stress may be related to hormone regulation. The results of the present study lay the foundation for exploring HSP20 gene family resources and the molecular mechanisms of heat resistance in chickpeas. Our results can also provide a theoretical basis for breeding high-temperature-resistant chickpea varieties and provide valuable information for the sustainable development of the global chickpea industry. Full article
(This article belongs to the Special Issue Advances in Legume Genetics and Genomics from Mendelian to NGS Era)
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