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Research paper | Open Access

Genome-wide association study reveals that JASMONATE ZIM-DOMAIN 5 regulates seed germination in rice

Shan Sun1, Liling Peng1, Qianqian Huang1, Zhibo Huang, Chengjing Wang, Jia Zhao, Zhoufei Wang( ), Yongqi He( )
The Laboratory of Seed Science and Technology, Guangdong Key Laboratory of Plant Molecular Breeding, Key Laboratory for Enhancing Resource Use Efficiency of Crops in South China, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, Guangdong, China

1 These authors contributed equally to this work.

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Abstract

Seed germination is a complex trait regulated by multiple genes in rice. However, the regulators of rice seed germination have yet to be sufficiently determined. Here, a quantitative trait locus (QTL) for rice seed germination was identified in a genome-wide association study. The candidate gene JASMONATE ZIM-DOMAIN 5 (OsJAZ5) of the QTL was verified that positively regulates seed germination. OsJAZ5 regulation of seed germination involves an OsABI3-mediated abscisic acid pathway. Overexpression of OsJAZ5 facilitated seed germination. The application of OsJAZ5 might be useful for increasing seed germination for rice direct seeding.

Keywords

Abscisic acidJASMONATE ZIM-DOMAINOryza sativaSeed germination

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The Crop Journal
Volume 12 Issue 4,
August 2024
Pages 1001-1009
DOI: 10.1016/j.cj.2024.05.007

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Cite this article:
Sun S, Peng L, Huang Q, et al. Genome-wide association study reveals that JASMONATE ZIM-DOMAIN 5 regulates seed germination in rice. The Crop Journal, 2024, 12(4): 1001-1009. https://doi.org/10.1016/j.cj.2024.05.007

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Received: 02 April 2024
Revised: 14 May 2024
Accepted: 16 May 2024
Published: 06 June 2024
© 2024 Crop Science Society of China and Institute of Crop Science, CAAS.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).