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Association mapping of mesocotyl and coleoptile length in rice using various genome‐wide association study models.

Authors :
Li, Rui
Wei, Zhaoran
Wang, Yuetao
Ma, Mengjuan
Zhang, Qifei
Bai, Tao
Li, Zichao
Zhang, Zhanying
Yin, Haiqing
Wang, Ya
Source :
Crop Science. Sep2024, p1. 13p. 4 Illustrations.
Publication Year :
2024

Abstract

The mechanized direct seeding of rice (<italic>Oryza sativa</italic> L.) is a major trend nowadays. The elongation of rice mesocotyl and coleoptile can facilitate the rapid emergence of seedlings under deep mechanized sowing. Currently, most of the cultivated rice accessions have short mesocotyls or coleoptiles, with only a few related genes cloned. However, understanding and enhancing the ability of rice seedlings to rapidly emerge from deep sowing depths is crucial. Herein, we assessed 745 core rice germplasm accessions sown under a soil cover depth of 10 cm and found few long mesocotyl and coleoptile germplasms. We conducted genome‐wide association study using six models to obtain three or more multi‐model co‐localization candidate regions and calculated <italic>F</italic>st between the phenotypes of extreme samples to determine genetic differences. The candidate regions associated with mesocotyl and coleoptile lengths were identified by integrating <italic>F</italic>st and multi‐model localization results. This multi‐model localization method may accelerate the mining of genes related to the mesocotyl and coleoptile, providing valuable targets for functional validation and marker‐assisted selection in rice breeding programs. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0011183X
Database :
Academic Search Index
Journal :
Crop Science
Publication Type :
Academic Journal
Accession number :
179762140
Full Text :
https://doi.org/10.1002/csc2.21360