Genetic Diversity of Germplasm Resources in Cereals and Legumes

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Genetic Resources".

Deadline for manuscript submissions: 10 August 2024 | Viewed by 1358

Special Issue Editors


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Guest Editor
Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, 94976 Nitra, Slovakia
Interests: genetic diversity; molecular markers; plant biotechnology; genotyping

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Guest Editor
Department of Plant Biology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
Interests: plant genetics; molecular genetics; DNA markers; plant biotechnologies; plant breeding

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Guest Editor
Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, 94976 Nitra, Slovakia
Interests: DNA markers; plant biotechnology; genetic diversity; genotyping

Special Issue Information

Dear Colleagues,

Plant samples stored in the form of genetic resources in gene banks belong to the cultural wealth and heritage of every nation and the entire humanity at the same time. Their collection and preservation in a viable state is a basic prerequisite for the preservation of genetic diversity in the plant kingdom on our planet for future generations. Biological diversity is and will be the starting point for the creation of new, improved plant genotypes, which is closely related to the production of sufficient quality food for the rapidly increasing human population. Omic approaches (genomics, transcriptomics, proteomics, metabolomics, etc.) and biotechnological methods play an important role in the characterization of plant genetic resources, which, together with phenotyping, provide breeders with significant information about the variety.

Cereals, pseudocereals, and legumes are among the most important groups of crops providing nutrition for a large part of the human population and animals in the world. Systematic documentation and evaluation of the plant genome based on molecular markers that capture variability at the level of DNA or its protein products is essential for the management of plant genetic resources. The technology of molecular markers makes it possible to make the breeding process more efficient by using a large number of new techniques with the aim of improving selection strategies in plant breeding. Molecular markers are also suitable tools for further studies related to the analysis of plant genomes, their mapping, construction of the genetic and linkage maps, detection of the genetic homogeneity and use in molecular breeding, diagnostics, taxonomy, etc. This Special Issue of Plants is dedicated to these very interesting and inspiring topics. The aim of this Special Issue of Plants is to provide a better understanding of the genetic diversity, germplasm resources, and new biotechnologies of sustained cereals, pseudocereals, and legumes improvement.

Prof. Dr. Zdenka Gálová
Dr. Tomáš Vyhnánek
Dr. Želmí­ra Balážová
Guest Editors

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Keywords

  • genetic diversity
  • polymorphism
  • genetic resources
  • cereals and pseudocereals
  • legumes
  • molecular methods
  • genotyping

Published Papers (2 papers)

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Research

21 pages, 20225 KiB  
Article
Genetic Dissection of Diverse Seed Coat Patterns in Cowpea through a Comprehensive GWAS Approach
by Haizheng Xiong, Yilin Chen, Waltram Ravelombola, Beiquan Mou, Xiaolun Sun, Qingyang Zhang, Yiting Xiao, Yang Tian, Qun Luo, Ibtisam Alatawi, Kenani Edward Chiwina, Hanan Mohammedsaeed Alkabkabi and Ainong Shi
Plants 2024, 13(9), 1275; https://doi.org/10.3390/plants13091275 - 5 May 2024
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Abstract
This study investigates the genetic determinants of seed coat color and pattern variations in cowpea (Vigna unguiculata), employing a genome-wide association approach. Analyzing a mapping panel of 296 cowpea varieties with 110,000 single nucleotide polymorphisms (SNPs), we focused on eight unique [...] Read more.
This study investigates the genetic determinants of seed coat color and pattern variations in cowpea (Vigna unguiculata), employing a genome-wide association approach. Analyzing a mapping panel of 296 cowpea varieties with 110,000 single nucleotide polymorphisms (SNPs), we focused on eight unique coat patterns: (1) Red and (2) Cream seed; (3) White and (4) Brown/Tan seed coat; (5) Pink, (6) Black, (7) Browneye and (8) Red/Brown Holstein. Across six GWAS models (GLM, SRM, MLM, MLMM, FarmCPU from GAPIT3, and TASSEL5), 13 significant SNP markers were identified and led to the discovery of 23 candidate genes. Among these, four specific genes may play a direct role in determining seed coat pigment. These findings lay a foundational basis for future breeding programs aimed at creating cowpea varieties aligned with consumer preferences and market requirements. Full article
(This article belongs to the Special Issue Genetic Diversity of Germplasm Resources in Cereals and Legumes)
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14 pages, 1100 KiB  
Article
Mining of QTLs for Spring Bread Wheat Spike Productivity by Comparing Spring Wheat Cultivars Released in Different Decades of the Last Century
by Natalia Shvachko, Maria Solovyeva, Irina Rozanova, Ilya Kibkalo, Maria Kolesova, Alla Brykova, Anna Andreeva, Evgeny Zuev, Andreas Börner and Elena Khlestkina
Plants 2024, 13(8), 1081; https://doi.org/10.3390/plants13081081 - 12 Apr 2024
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Abstract
Genome-wide association studies (GWAS) are among the genetic tools for the mining of genomic loci associated with useful agronomic traits. The study enabled us to find new genetic markers associated with grain yield as well as quality. The sample under study consisted of [...] Read more.
Genome-wide association studies (GWAS) are among the genetic tools for the mining of genomic loci associated with useful agronomic traits. The study enabled us to find new genetic markers associated with grain yield as well as quality. The sample under study consisted of spring wheat cultivars developed in different decades of the last century. A panel of 186 accessions was evaluated at VIR’s experiment station in Pushkin across a 3-year period of field trials. In total, 24 SNPs associated with six productivity characteristics were revealed. Along with detecting significant markers for each year of the field study, meta-analyses were conducted. Loci associated with useful yield-related agronomic characteristics were detected on chromosomes 4A, 5A, 6A, 6B, and 7B. In addition to previously described regions, novel loci associated with grain yield and quality were identified during the study. We presume that the utilization of contrast cultivars which originated in different breeding periods allowed us to identify new markers associated with useful agronomic characteristics. Full article
(This article belongs to the Special Issue Genetic Diversity of Germplasm Resources in Cereals and Legumes)
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