Recent Advances in the Genetics, Genomics and Breeding of Cereal Crops

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Genetics, Genomics and Biotechnology".

Deadline for manuscript submissions: 30 September 2025 | Viewed by 1054

Special Issue Editors


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Guest Editor
National Wheat Improvement Centre, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Interests: breeding; genetics; marker-assisted selection; wheat
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School of Agriculture, Sun Yat-sen University, Guangzhou, China
Interests: breeding; genetics; marker-assisted selection; molecular biology; rice
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Cereal crops, such as wheat, maize, rice, barley, etc., are the main foods worldwide. Cereals occupy nearly 75% of the total cultivated area and provide over half of the world’s caloric consumption. Benefiting from modern breeding technology, cereal yields have increased significantly in the past half-century; however, recent studies have shown that the global annual increase for major crops has slowed down to around 1% after entering the 21st century.

To address this challenge and ensure food security in an environmentally sustainable manner, breeding varieties with higher yields, superior quality, and resilience to both biotic and abiotic stresses is crucial. Diverse breeding methods, ranging from traditional to modern technologies, have been employed. Advances in biotechnology, molecular biology, genomics, and genome editing have significantly improved breeding efficiency. Additionally, all of the above approaches require diverse genetic resources and germplasms; however, an urgent issue for modern cultivars is the narrowing of genetic diversity due to domestication and selection. Therefore, marker-assisted selection (MAS) based on quantitative trait loci (QTL) or genes identified through forward and reverse genetics holds significant promise for crop breeding. This Special Issue aims to highlight recent advances in genetics, genomics, and breeding techniques for cereal crops. We invite original research and review articles that focus on, but are not limited to, the following topics:

  1. Genetic analyses to uncover complex quantitative traits (particularly yield, quality, and resistance to biotic and abiotic stresses).
  2. Genomic selection/prediction and molecular design methods for cereal crops.
  3. Novel insights from traditional agronomic breeding methods.
  4. Genomic analyses (re-sequence, BSA, or others) for cereal crops.
  5. Domestication and selection signatures for cereal crops.
  6. Identifying the desired haplotypes and MAS breeding for cereal crops.

Dr. Jindong Liu
Dr. Yamei Wang
Guest Editors

Manuscript Submission Information

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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. Plants is an international peer-reviewed open access semimonthly 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 2700 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

  • agronomic
  • breeding
  • cereal crops
  • genetics
  • genomics
  • marker-assisted selection

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Published Papers (1 paper)

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Research

16 pages, 2088 KiB  
Article
Genetic Basis of Seedling Root Traits in Common Wheat (Triticum aestivum L.) Identified by Genome-Wide Linkage Mapping
by Xiaole Ma, Juncheng Wang, Hong Zhang, Lirong Yao, Erjing Si, Baochun Li, Yaxiong Meng and Huajun Wang
Plants 2025, 14(3), 490; https://doi.org/10.3390/plants14030490 - 6 Feb 2025
Viewed by 739
Abstract
Common wheat production is significantly influenced by abiotic stresses. Identifying the genetic loci for seedling root traits and developing the available molecular markers are crucial for breeding high yielding and stable varieties. In this study, five wheat seedling root traits, including root length [...] Read more.
Common wheat production is significantly influenced by abiotic stresses. Identifying the genetic loci for seedling root traits and developing the available molecular markers are crucial for breeding high yielding and stable varieties. In this study, five wheat seedling root traits, including root length (RL), root surface area (RA), root volume (RV), number of root tips (RT), and root dry weight (RW), were measured in the Wp-072/Wp-119 recombinant inbred line (RIL) population. Genotyping was conducted for the RIL population and their parents using the wheat 90K single-nucleotide polymorphism (SNP) chip. In total, three quantitative trait loci (QTLs) for RL (QRL.gau-1DS, QRL.gau-1DL and QRL.gau-4AL), two QTLs for RA (QRA.gau-1D and QRA.gau-2DL), one locus for RV (QRV.gau-6AS), two loci for RW (QRW.gau-2DL and QRW.gau-2AS), and two loci for RT (QRT.gau-3AS and QRT.gau-6DL) were identified, with each explaining 4.5–8.4% of the phenotypic variances, respectively. Among these, QRT.gau-3AS, QRL.gau-4AL, and QRV.gau-6AS overlapped with the previous reports, whereas the other seven QTLs were novel. The favorable alleles of QRL.gau-1DS, QRL.gau-1DL, QRL.gau-4AL, QRA.gau-1D, QRW.gau-2AS, QRV.gau-6AS, QRT.gau-3AS, and QRT.gau-6DL were contributed by Wp-072, whereas the other two loci originated from Wp-119. Additionally, five kompetitive allele-specific PCR (KASP) markers, KASP-RL-1DL for RL, KASP-RA-1D and KASP-RA-2DL for RA, KASP-RW-2AS and KASP-RW-2DL for RW, were developed and validated successfully in 149 wheat accessions. Furthermore, seven candidate genes mainly for plant hormones were selected and validated by quantitative real-time PCR (qRT-PCR). This study provides new loci, new candidate genes, available KASP markers, and varieties for optimizing wheat root system architecture. Full article
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