Cytological Observation and Candidate Gene Identification of a Female Semi-Sterile Rice Mutant
文献类型： 外文期刊
作者： Wang, Zhongni 1 ; Luo, Qinhuan 2 ; Wu, Xian 1 ; Long, Sifang 3 ; Jiang, Xue 1 ; Li, Jiali 1 ; Xu, Haifeng 1 ; Zhang, Dashuang 1 ; Zhu, Susong 1 ;
作者机构： 1.Guizhou Acad Agr Sci, Guizhou Rice Res Inst, Guiyang 550006, Peoples R China
2.Guizhou Educ Univ, Sch Biol Sci, Guiyang 550018, Peoples R China
3.Qiannan Med Coll Nationalities, Fac Basic Med Sci, Dept Biochem, Duyun 558000, Peoples R China
关键词： Rice; Female Semi-Sterile; Embryo Sac Abortion; BSA Re-Sequencing
期刊名称：JOURNAL OF BIOBASED MATERIALS AND BIOENERGY （ 影响因子：0.687； 五年影响因子：0.558 ）
ISSN： 1556-6560
年卷期： 2022 年 16 卷 2 期
页码：
收录情况： SCI
摘要： Rice is an important staple crop, and fertilization has a very important role in the production of high-yield and well-quality hybrid of rice. The abnormal development of female gametes will lead to a significant decrease in rice yields. Due to the complex mechanism of female gamete development, the molecular mechanism of female sterility has not made a breakthrough. In this study, one semi-sterile mutant m21 and its fifth generation of backcross material (WZN58 and WZN68) were used as materials, and the phenotypic observation and cytological observation of embryo sac development were performed. Moreover, the pollen viability was evaluated by iodine potassium iodide (I2-KI) staining. Bulked-segregant analysis (BSA) re-sequencing and transgenic analysis were further applied to investigate the molecular mechanism of semi-sterile phenotype. These results demonstrated that male gamete developmet was normal, while the abnormality of the mutant was IP: 14.98.160.66 On: Thu, 09 Jun 2022 07:22:47 caused by the abnormal development of female gamte. Among 112 candidate genes detected by BSA, one gene Os10g0506000 was idntified responsible for the semi-sterile phenotype of m21 mutant. This study provides an ideal material and candidate gene for rice female fertility analysis.
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