文献类型: 外文期刊
作者: Mao, Xingxue 1 ; Zheng, Xiaoyu 1 ; Chen, Wenfeng 1 ; Li, Chen 1 ;
作者机构: 1.Guangdong Acad Agr Sci, Rice Res Inst, Guangzhou 510640, Peoples R China
2.Guangdong Key Lab New Technol Rice Breeding, Guangzhou 510640, Peoples R China
关键词: rice; BSA; floral organs development; OsJAG
期刊名称:INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES ( 影响因子:5.6; 五年影响因子:6.2 )
ISSN: 1661-6596
年卷期: 2023 年 24 卷 16 期
页码:
收录情况: SCI
摘要: Floral organ development determines agricultural productivity by affecting seed development, seed quality, and final yield. In this study, we described the novel ogl mutant in rice (Oryza sativa L.), which is characterized by an open-glume phenotype, increased pistil number, reduced stamen number, decreased seed setting rate, and smaller rice grains. Genetic analysis showed that the open-glume phenotype might be controlled by a recessive qualitative trait locus. Employing bulked segregant analysis (BSA), one candidate region was identified on rice chromosome 1. The glume opening phenotype cosegregated with SNP (Chr1:1522703), which was located at the start codon of one transcript of OsJAG, resulting in partial loss of OsJAG function. cDNA analysis revealed that OsJAG encodes two transcript variants. Compared to normal plants, the expression of OsJAG.1 was upregulated in open-glume plants. When investigating the glume phenotype, we found that the expression of genes related to floral development changed greatly in open-glume plants. Taken together, this work increases our understanding of the developmental role of OsJAG in rice floral development.
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