期刊
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
卷 446, 期 4, 页码 1085-1090出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2014.03.056
关键词
Resistance; AC134922; Allele-mining; Gene conversion
资金
- National Natural Science Foundation of China [91331205, J1103512, J1210026]
- NSFC of Jiangsu province [BK2011015]
- RFDP [20100091120022]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT1020]
- Program for New Century Excellent Talents in University [NCET-12-0259]
The AC134922 locus is one of the most rapidly evolving nucleotide binding site-leucine-rich repeat (NBS-LRR) gene family in rice genome. Six rice blast resistance (R) genes have been cloned from this locus and other two resistance candidate genes, Pi34 and Pi47, are also mapped to this complex locus. Therefore, it seems that more functional R genes could be identified from this locus. In this study, we cloned 22 genes from 12 cultivars based on allele-mining strategy at this locus and identified 6 rice blast R genes with 4 of them recognizing more than one isolates. Our result suggests that gene stacking might be the evolutionary strategy for complex gene locus to interact with rapidly evolving pathogens, which might provide a potential way for the cloning of durable resistance genes. Moreover, the mosaic structure and ambiguous ortholog/paralog relationships of these homologous genes, caused by frequent recombination and gene conversion, indicate that multiple alleles of this complex locus may serve as a reservoir for the evolutionary novelty of these R genes. (C) 2014 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据