Knowledge Management System of Northwest Institute of Plateau Biology, CAS
Microsatellite Mutation Rate during Allohexaploidization of Newly Resynthesized Wheat | |
Luo, Jiangtao1; Hao, Ming1; Zhang, Li1; Chen, Jixiang1; Zhang, Lianquan1; Yuan, Zhongwei1; Yan, Zehong1; Zheng, Youliang1; Zhang, Huaigang2; Yen, Yang3; Liu, Dengcai1,2 | |
2012-10-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
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ISSN | 1422-0067 |
卷号 | 13期号:10页码:12533-12543 |
文章类型 | Article |
摘要 | Simple sequence repeats (SSRs, also known as microsatellites) are known to be mutational hotspots in genomes. DNA rearrangements have also been reported to accompany allopolyploidization. A study of the effect of allopolyploidization on SSR mutation is therefore important for understanding the origin and evolutionary dynamics of SSRs in allopolyploids. Three synthesized double haploid (SynDH) populations were made from 241 interspecific F-1 haploid hybrids between Triticum turgidum L. and Aegilops tauschii (Coss.) through spontaneous chromosome doubling via unreduced gametes. Mutation events were studied at 160 SSR loci in the S-1 generation (the first generation after chromosome doubling) of the three SynDH populations. Of the 148260 SSR alleles investigated in S-1 generation, only one mutation (changed number of repeats) was confirmed with a mutation rate of 6.74 x 10(-6). This mutation most likely occurred in the respective F-1 hybrid. In comparison with previously reported data, our results suggested that allohexaploidization of wheat did not increase SSR mutation rate.; Simple sequence repeats (SSRs, also known as microsatellites) are known to be mutational hotspots in genomes. DNA rearrangements have also been reported to accompany allopolyploidization. A study of the effect of allopolyploidization on SSR mutation is therefore important for understanding the origin and evolutionary dynamics of SSRs in allopolyploids. Three synthesized double haploid (SynDH) populations were made from 241 interspecific F-1 haploid hybrids between Triticum turgidum L. and Aegilops tauschii (Coss.) through spontaneous chromosome doubling via unreduced gametes. Mutation events were studied at 160 SSR loci in the S-1 generation (the first generation after chromosome doubling) of the three SynDH populations. Of the 148260 SSR alleles investigated in S-1 generation, only one mutation (changed number of repeats) was confirmed with a mutation rate of 6.74 x 10(-6). This mutation most likely occurred in the respective F-1 hybrid. In comparison with previously reported data, our results suggested that allohexaploidization of wheat did not increase SSR mutation rate. |
关键词 | Allopolyploidy Distant Hybridization Microsatellite Evolution Wheat |
WOS标题词 | Science & Technology ; Physical Sciences |
关键词[WOS] | RAPID GENOMIC CHANGES ; HEXAPLOID WHEAT ; BRASSICA-NAPUS ; BREAD WHEAT ; CYTOSINE METHYLATION ; GENE-EXPRESSION ; EVOLUTION ; SEQUENCE ; LOCI ; ALLOPOLYPLOIDIZATION |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Chemistry |
WOS类目 | Chemistry, Multidisciplinary |
WOS记录号 | WOS:000310677800023 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://210.75.249.4/handle/363003/3600 |
专题 | 中国科学院西北高原生物研究所 |
作者单位 | 1.Sichuan Agr Univ, Triticeae Res Inst, Wenjiang 611130, Peoples R China 2.Chinese Acad Sci, NW Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Peoples R China 3.S Dakota State Univ, Dept Biol & Microbiol, Brookings, SD 57007 USA |
推荐引用方式 GB/T 7714 | Luo, Jiangtao,Hao, Ming,Zhang, Li,et al. Microsatellite Mutation Rate during Allohexaploidization of Newly Resynthesized Wheat[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2012,13(10):12533-12543. |
APA | Luo, Jiangtao.,Hao, Ming.,Zhang, Li.,Chen, Jixiang.,Zhang, Lianquan.,...&Liu, Dengcai.(2012).Microsatellite Mutation Rate during Allohexaploidization of Newly Resynthesized Wheat.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,13(10),12533-12543. |
MLA | Luo, Jiangtao,et al."Microsatellite Mutation Rate during Allohexaploidization of Newly Resynthesized Wheat".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 13.10(2012):12533-12543. |
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