The cytological instability of neoallopolyploids suggesting a potent way for DNA introgression: The case of synthetic hexaploid wheat x Aegilops peregrina
文献类型：期刊论文
| 作者 | Yang, Youwei1,2; Zhang, Lianquan1,2; Yan, Zehong1,2; Zheng, Youliang1,2; Liu, Dengcai1,2,3 |
| 刊名 | african journal of agricultural research
 |
| 出版日期 | 2011-04-04 |
| 卷号 | 6期号:7页码:1692-1697 |
| 关键词 | Aneuploids common wheat gene flow neopolyploid Ph1 |
| ISSN号 | 1991-637x |
| 中文摘要 | shw-l1 is a newly synthetic hexaploid wheat, which has a genomic combination analogous to that of natural common wheat. in the present study, intergeneric f(1) hybrids of shw-l1 - aegilops peregrina as24 were produced without embryo rescue. among the 31 f(1) hybrid plants observed, 20 had the expected chromosome number 2n = 35 and were euploids (genome abdus(i)). the remainder 11 plants were aneuploids with 33, 34, 36 and 37 chromosomes, indicating that the neoallohexaploid shw-l1 was cytologically instable and produced aneuhaploid gametes with 19, 20, 22 and 23 chromosomes, respectively. the hybrid plant lacking chromosome 5b carrying ph1 showed a very high level of homoeologous chromosome pairing. the absence of ph gene provides a potent cytological mechanism for dna introgression among homoeologous chromosomes between newly synthetic wheat and wild species. |
| 英文摘要 | shw-l1 is a newly synthetic hexaploid wheat, which has a genomic combination analogous to that of natural common wheat. in the present study, intergeneric f-1 hybrids of shw-l1 - aegilops peregrina as24 were produced without embryo rescue. among the 31 f-1 hybrid plants observed, 20 had the expected chromosome number 2n = 35 and were euploids (genome abdus(i)). the remainder 11 plants were aneuploids with 33, 34, 36 and 37 chromosomes, indicating that the neoallohexaploid shw-l1 was cytologically instable and produced aneuhaploid gametes with 19, 20, 22 and 23 chromosomes, respectively. the hybrid plant lacking chromosome 5b carrying ph1 showed a very high level of homoeologous chromosome pairing. the absence of ph gene provides a potent cytological mechanism for dna introgression among homoeologous chromosomes between newly synthetic wheat and wild species. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | agriculture, multidisciplinary |
| 研究领域[WOS] | agriculture |
| 关键词[WOS] | triticum-aestivum ; genome evolution ; polyploid wheat ; genetic-control ; wild relatives ; bread wheat ; sequence ; lines ; hybridization ; restitution |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000292265600009 |
| 公开日期 | 2011-12-13 |
| 源URL | [http://ir.nwipb.ac.cn//handle/363003/1560]  |
| 专题 | 西北高原生物研究所_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, Sichuan, Peoples R China 2.Sichuan Agr Univ, Key Lab Crop Genet Resources & Improvement, Minist Educ, Yaan 625014, Sichuan, Peoples R China 3.Chinese Acad Sci, NW Plateau Inst Biol, Qinghai 810001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Youwei,Zhang, Lianquan,Yan, Zehong,et al. The cytological instability of neoallopolyploids suggesting a potent way for DNA introgression: The case of synthetic hexaploid wheat x Aegilops peregrina[J]. african journal of agricultural research,2011,6(7):1692-1697. |
| APA | Yang, Youwei,Zhang, Lianquan,Yan, Zehong,Zheng, Youliang,&Liu, Dengcai.(2011).The cytological instability of neoallopolyploids suggesting a potent way for DNA introgression: The case of synthetic hexaploid wheat x Aegilops peregrina.african journal of agricultural research,6(7),1692-1697. |
| MLA | Yang, Youwei,et al."The cytological instability of neoallopolyploids suggesting a potent way for DNA introgression: The case of synthetic hexaploid wheat x Aegilops peregrina".african journal of agricultural research 6.7(2011):1692-1697. |
入库方式： OAI收割
来源：西北高原生物研究所
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