Genomic variation of the rice Rim2/Hipa superfamily and dendrogram and fingerprinting analysis of rice germplasm based on Rim2/Hipa paralog display
文献类型： 外文期刊
作者： Tian, PF 1 ; Wang, JJ 2 ; Wu, G 2 ; Li, Q 3 ; Lu, BR; He, ZH;
作者机构： 1.Chinese Acad Sci, Shanghai Inst Biol Sci, Natl Lab Plant Mol Genet, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Biol Sci, Natl Lab Plant Mol Genet, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China; Zhejiang Acad Agr Sci, Crop & Nucl Utilizat Inst, Hangzhou 310021, Peoples R China; Fudan Univ, Inst Biodivers Sci, Shanghai 200433, Peoples R China; Beijing Univ Chem Technol, Coll Life Sci, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Biol Sci, Natl Lab Plant Mol Genet, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China; Zhejiang Acad Agr Sci, Crop & Nucl Utilizat Inst, Hangzhou
关键词： Oryza;Rim2/Hipa;genomic variation;dendrogram;fingerprint
期刊名称：PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS （ 影响因子：0.351； 五年影响因子：0.272 ）
ISSN： 1000-3282
年卷期： 2006 年 33 卷 2 期
页码：
收录情况： SCI
摘要： The rice Rim2/Hipa is a stress-induced transposon superfamily recently identified in Oryza genomes. Genomic variation was found in the Rim2 core region among rice genetic resources/genomes, indicative of high genomic divergence accumulated during the Rim2 evolution. Based on the divergence and quiescent state of the Rim2 elements, a Rim2 paralog display-based fingerprinting approach was developed to effectively identify rice genetic resources and explore their genetic relationships within a set of rice germplasm including 45 accessions of O. sativa and 8 accessions of its wild relatives O. rufipogon. A dendrogram showed not only clear genetic diversity of rice germplasm, but also considerable genetic differentiation among wild rice resources. The wild rice relatives were either clustered as an independent group, or among the japonica varieties. This Rim2-based fingerprinting approach could also serve as a sensitive tool to identify rice hybrids from their parents, and variety stability, demonstrating its great potential in evolution study of rice genomes and in rice breeding and seed production.
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