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Agronomy
Special Issues
Genetics and Breeding of Field Crops in the 21st Century
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Genetics and Breeding of Field Crops in the 21st Century

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

Deadline for manuscript submissions: 30 November 2024 | Viewed by 2122

Special Issue Editor

Dr. Ioannis N. Xynias

E-Mail Website1 Website2
Guest Editor
School of Agricultural Sciences, University of Western Macedonia, 9 Iraklias str., 54636 Thessaloniki, Hellas, Greece
Interests: breeding field crops; doubled haploid production; cytogenetics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Genetics has always been the main tool for understanding and evaluating crop behavior. This facilitated the production of new cultivars with better yielding efficiency, contributing to developing Plant Breeding as an important science. Thus, breeding field crops have proved essential to ensure food and feed supply in adequate quantities to meet human and livestock demands. This procedure, although sufficiently effective, faces serious risks due to climate change, the emergence of new and more aggressive biotic factors and wrong human actions resulting in marginal environments.

Aim and scope of the Special Issue is to bring together old and new attempts that contribute to solving the aforementioned risks. Classical breeding can use the current developments of molecular breeding, doubled haploidy and even speed breeding in order to accomplish this goal.

The new Special Issue welcomes review, research and short communication papers that can contribute to this attempt.

Dr. Ioannis N. Xynias
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

  • yield
  • quality
  • food supply
  • climate change
  • sustainable agriculture

Published Papers (2 papers)

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Research

13 pages, 1999 KiB  
Article
The Identification of Significant Single Nucleotide Polymorphisms for Shoot Sulfur Accumulation and Sulfur Concentration Using a Genome-Wide Association Analysis in Wild Soybean Seedlings
by Hui Wang, Yu’e Zhang, Yudan Chen, Kaili Ren, Jialuo Chen, Guizhen Kan and Deyue Yu
Agronomy 2024, 14(2), 292; https://0-doi-org.brum.beds.ac.uk/10.3390/agronomy14020292 - 29 Jan 2024
Viewed by 633
Abstract
To understand the genetic basis of soybean sulfur utilization, a genome-wide association study (GWAS) and transcriptome analysis were used to discover new sulfur utilization genes in 121 wild soybeans. The shoot sulfur accumulation (SA) and shoot sulfur concentration (SC) of 121 wild soybean [...] Read more.
To understand the genetic basis of soybean sulfur utilization, a genome-wide association study (GWAS) and transcriptome analysis were used to discover new sulfur utilization genes in 121 wild soybeans. The shoot sulfur accumulation (SA) and shoot sulfur concentration (SC) of 121 wild soybean seedlings growing in a Hoagland nutrient solution for 14 days were evaluated in a greenhouse. The maximum coefficients of variation of SA and SC were 66.79% and 49.74%, respectively. An analysis of variance revealed that SA and SC had significant differences among materials. Compared with SC, SA had higher heritability (68%) and was significantly positively correlated with multiple agronomic traits. According to the GWAS, 33 and 18 single nucleotide polymorphisms (SNPs) were significantly associated with SA and SC, respectively. Six quantitative trait loci containing ten SNPs associated with SA were mapped in two or three environments on chromosome 9, 12, 13, 14, 15, and 19. Twenty-seven candidate genes were identified in the six stable loci by searching the low-sulfur-induction soybean transcriptome. A genetic diversity analysis of the ribosomal gene GsRPL35, a candidate gene on chromosome 15, revealed 10 haplotypes (Hap1-10) based on 7 SNPs in 99 wild soybeans. Wild soybeans carrying Hap2 had a higher SA than those carrying Hap6. In general, the results provide novel sulfur accumulation loci and candidate genes for sulfur utilization improvements in soybean in the future. Full article
(This article belongs to the Special Issue Genetics and Breeding of Field Crops in the 21st Century)
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16 pages, 1631 KiB  
Article
Assessing the Impact of Genotype-by-Environment Interactions on Agronomic Traits in Elite Cowpea Lines across Agro-Ecologies in Nigeria
by Bosede Olufunke Popoola, Patrick Obia Ongom, Saba B. Mohammed, Abou Togola, Daniel Jockson Ishaya, Garba Bala, Christian Fatokun and Ousmane Boukar
Agronomy 2024, 14(2), 263; https://0-doi-org.brum.beds.ac.uk/10.3390/agronomy14020263 - 25 Jan 2024
Viewed by 1146
Abstract
The yield of cowpea varieties is affected by environmental variability. Hence, candidate varieties must be tested for yield stability before release. This study assessed the impacts of genotypes, environments, and their interaction on the performance of elite cowpea lines for key adaptive, grain [...] Read more.
The yield of cowpea varieties is affected by environmental variability. Hence, candidate varieties must be tested for yield stability before release. This study assessed the impacts of genotypes, environments, and their interaction on the performance of elite cowpea lines for key adaptive, grain yield, and associated traits across different locations. A total of 42 elite genotypes were evaluated in five Nigerian environments, representing various savanna ecologies, during the 2021 growing season. The experimental design employed was an alpha lattice arrangement, with each genotype replicated three times. The results revealed significant differences among genotypes, environments, and genotype-by-environment interaction (G × E) for most traits, including days to maturity, 100-seed weight, and grain yield. The genotype and genotype-by-environment interaction (GGE) biplot showed G21 (IT14K-2111-2) and G25 (IT15K-2386-1) as the most stable genotypes across the five environments, G41 (IT11K-61-82) was best adapted to Ibadan and Shika, G5 (245-1) was best adapted to Bagauda and Gumel, and G30 (IT16K-2365-1) was best adapted to Bauchi. G21 (IT14K-2111-2) and G25 (IT15K-2386-1) could be recommended across the five test environments, whereas G41 (IT11K-61-82), G30 (IT16K-2365-1), and G5 (245-1) were specific to the adapted environments. Full article
(This article belongs to the Special Issue Genetics and Breeding of Field Crops in the 21st Century)
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