YGL138(t), encoding a putative signal recognition particle 54 kDa protein, is involved in chloroplast development of rice
文献类型： 外文期刊
作者： Zhang, Fantao 1 ; Luo, Xiangdong 1 ; Hu, Biaolin 2 ; Wan, Yong 2 ; Xie, Jiankun 1 ;
作者机构： 1.Jiangxi Normal Univ, Coll Life Sci, Nanchang 330022, Peoples R China
2.Jiangxi Acad Agr Sci, Biotechnol Res Inst, Nanchang 330200, Peoples R China
关键词： Oryza sativa L;Yellow-green leaf mutant;Chloroplast development;SRP54 protein
期刊名称：RICE （ 影响因子：4.783； 五年影响因子：5.23 ）
ISSN： 1939-8425
年卷期： 2013 年 6 卷
页码：
收录情况： SCI
摘要： Background: Normal development of chloroplast is vitally important to plants, but its biological mechanism is still far from fully being understood, especially in rice. Results: In this study, a novel yellow-green leaf mutant, ygl138, derived from Nipponbare (Oryza sativa L. ssp. japonica) treated by ethyl methanesulfonate (EMS), was isolated. The mutant exhibited a distinct yellow-green leaf phenotype throughout development, reduced chlorophyll level, and arrested chloroplast development. The phenotype of the ygl138 mutant was caused by a single nuclear gene, which was tentatively designed as YGL138(t). The YGL138(t) locus was mapped to chromosome 11 and isolated into a confined region of 91.8 kb by map-based cloning. Sequencing analysis revealed that, Os11g05552, which was predicted to encode a signal recognition particle 54 kDa (SRP54) protein and act as a chloroplast precursor, had 18 bp nucleotides deletion in the coding region of ygl138 and led to a frameshift. Furthermore, the identity of Os11g05552 was verified by transgenic complementation. Conclusions: These results are very valuable for further study on YGL138(t) gene and illuminating the mechanism of SRP54 protein involving in chloroplast development of rice.
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