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Jeong O-Young Park Hyeon-Su Baek Man-Kee Kim Woo-Jae Lee Geon-Mi Lee Chang-Min Bombay Maurene Ancheta Melanie Banzon Lee Jeom-Ho 《Journal of Crop Science and Biotechnology》2021,24(1):1-11
Journal of Crop Science and Biotechnology - Rice has been grown as a staple food in South Korea for several millennia. However, its status has not stayed constant as a result of changes in South... 相似文献
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Jong-Min Jeong Young-Chan Cho Ji-Ung Jeong Young-Jun Mo Choon-Song Kim Woo-Jea Kim Man-Kee Baek Suk-Man Kim 《Plant Breeding》2020,139(1):83-92
As one of the main rice establishment methods, direct seeding has the advantages of saving labour and reducing costs for farmers. However, the expansion of direct seeding has been constrained by poorly levelled fields, heavy rainfall and poor drainage after sowing. The development of cultivars with anaerobic germination tolerance could improve or overcome these shortcomings of most rice under flooding conditions. In this study, a japonica-type rice with anaerobic germination tolerance was suggested as a new genetic source and QTL analysis was carried out to improve adaptation to direct seeding. Three QTLs, qAG1, qAG3 and qAG11, were identified, explaining 13.44%, 6.71% and 14.52% of the phenotypic variance, respectively. In an evaluation of the most effective QTL combination, two QTL combinations (qAG1NP + qAG3PBR + qAG11PBR and qAG1NP + qAG11PBR) showed stable survival rates under submergence of filed condition. Based on the results, we will characterize the candidate genes within the detected target regions in further research, and the lines with advantageous alleles will be used to develop reliable cultivars to support the wide adoption of direct-seeding practices in japonica rice. 相似文献
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