Genome-wide association study uncovers the genetic loci for yield-related traits in waxy rice.

Bibliographic Details
Title: Genome-wide association study uncovers the genetic loci for yield-related traits in waxy rice.
Authors: Fei Y; School of Agronomy and Horticulture, Jiangsu Vocational College of Agriculture and Forestry, Jurong, 212400, China., Mo Z; Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China. mozhenghai@cnbg.net.
Source: Journal of applied genetics [J Appl Genet] 2026 Sep; Vol. 67 (3), pp. 561-572. Date of Electronic Publication: 2025 Aug 11.
Publication Type: Journal Article
Language: English
Journal Info: Publisher: Springer Country of Publication: England NLM ID: 9514582 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2190-3883 (Electronic) Linking ISSN: 12341983 NLM ISO Abbreviation: J Appl Genet Subsets: MEDLINE
Imprint Name(s): Publication: 2011- : Cheshire, United Kingdom : Springer
Original Publication: Poznań, Poland : Institute of Plant Genetics, Polish Academy of Sciences, 1995-
MeSH Terms: Oryza*/genetics , Oryza*/growth & development , Quantitative Trait Loci* , Genome-Wide Association Study*, Polymorphism, Single Nucleotide ; Phenotype ; Haplotypes ; Chromosome Mapping
Abstract: Improving yield potential is a critical goal for breeders; however, yield-related loci are still less understood in waxy rice, which seriously limited the precise development of high-yield cultivars. Here, we investigated six yield-related traits in a collection of 109 cultivated waxy rice accessions over two seasons and perform genome-wide association study using 1.81 million single nucleotide polymorphisms (SNPs) to elucidate the genetic basis underlying grain yield. Our analysis identified a total of 28 significant quantitative trait loci (QTLs), explaining 0.71-38.46% of phenotype variance. Of these, 17 was previously reported or contained genes known to govern the associated traits, while the remaining 11 appear to be novel alleles. Within the 28 QTLs, 379 residing genes were identified, and candidate yield-related genes in close proximity to the significant SNPs were extracted for haplotype analysis. The results showed that the genetic variations in Os09g0375700, Os09g0396300, and Os03g0609500 were highly associated with variations in thousand grain weight or panicle number. Our results dissected the possible genetic determinants of waxy rice yield and will be conducive to breed new cultivars with high yield in the future.
(© 2025. The Author(s), under exclusive licence to Institute of Plant Genetics Polish Academy of Sciences.)
Competing Interests: Declarations. Ethical approval: Not applicable. Disclaimer: The funder had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. Competing interests: The authors declare no competing interests.
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Grant Information: 2024rc03 high-level talent`s start-up research program; CX(22)3146 Jiangsu Agricultural Science and Technology Innovation Fund
Contributed Indexing: Keywords: Genome-wide association study; Haplotype; Quantitative trait loci; Waxy rice; Yield
Entry Date(s): Date Created: 20250810 Date Completed: 20260901 Latest Revision: 20261008
Update Code: 20261008
DOI: 10.1007/s13353-025-00996-y
PMID: 40784927
Database: MEDLINE
Description
ISSN:2190-3883
DOI:10.1007/s13353-025-00996-y