High-resolution mapping revealed a 1.3-Mbp genomic inversion in Ssi1, a dominant semidwarf gene in rice (Oryza sativa)
文献类型： 外文期刊
第一作者： Miura, K.
作者： Miura, K.;Sunohara, H.;Matsuoka, M.;Ashikari, M.;Kitano, H.;Wu, J.;Matsumoto, T.;Wu, X.;Miura, K.
作者机构：
关键词： Oryza sativa; semidwarf; dm-type; dominant gene
期刊名称：PLANT BREEDING （ 影响因子：1.832； 五年影响因子：1.956 ）
ISSN： 0179-9541
年卷期： 2009 年 128 卷 1 期
页码：
收录情况： SCI
摘要： Dwarf or semidwarf characters are an important trait for crop breeding as they provide lodging resistance. The rice mutant line DMF-1 has a dm-type semidwarf phenotype and high-lodging resistance controlled by the dominant gene, Short second internode 1 (Ssi1). To elucidate the mechanism of reducing culm length in DMF-1, we sought to identify the Ssi1 gene by positional cloning using the chromosome segment substitution line as a crossing parent. As a result of high-resolution mapping, we found a 1.3-Mbp genomic inversion and a newly arranged gene in the Ssi1 locus. In this study, we report the high-resolution mapping and physical mapping of Ssi1. We also discuss the possible function of a novel rearranged Ssi1 gene for the dominant dm-type semidwarf phenotype.
分类号： S3
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