您好，欢迎访问四川省农业科学院 机构知识库！

Chromosomes polymorphisms of Sichuan wheat cultivars displayed by ND-FISH landmarks

文献类型： 外文期刊

作者： Hu, Zhenglei 1 ; Luo, Jiangtao 3 ; Wan, Linrong 1 ; Luo, Jie 1 ; Li, Yazhou 4 ; Fu, Shulan 1 ; Liu, Dengcai 4 ; Hao, Ming 4 ;

作者机构： 1.Sichuan Agr Univ, Coll Agron, Chengdu 611130, Sichuan, Peoples R China

2.Sichuan Agr Univ, Prov Key Lab Plant Genet & Breeding, Chengdu 611130, Sichuan, Peoples R China

3.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Sichuan, Peoples R China

4.Sichuan Agr Univ, Triticeae Res Inst, Chengdu 611130, Sichuan, Peoples R China

关键词： Wheat; Chromosome; ND-FISH; Karyotype; Tandem repeats

期刊名称：CEREAL RESEARCH COMMUNICATIONS （ 影响因子：0.811； 五年影响因子：0.766 ）

ISSN： 0133-3720

年卷期：

页码：

收录情况： SCI

摘要： Although fluorescence in situ hybridization (FISH) karyotypes of wheat chromosomes have already been widely investigated, more probes are needed to enrich them. Novel karyotype characteristics of 166 common wheat cultivars bred from the hometown of Chinese Spring were revealed using 11 oligonucleotide (oligo) probes derived from nine kinds of tandem repeats. Chromosomes 5A, 3B and 1D showed the highest number (24, 18 and 6) of karyotype variations in A-, B-, and D-genome chromosomes, respectively. According to the FISH karyotypes, the analyzed wheat cultivars were divided into eight clusters that correspond to breeding entities. Thirty and 38 cultivars contain wheat-Haynaldia villosa 6AL.6VS and wheat-rye 1BL.1RS translocation chromosomes, respectively, indicating their high breeding value in Sichuan, China. Additionally, four and three types of 6AL.6VS and 1BL.1RS translocations were observed, respectively. Scarce translocations were detected. 'Neimai' series cultivars contain reciprocal translocations 5AS.3BS/5AL.3BL. Three cultivars contain reciprocal translocations 5BL.5BS-7BL/7BS.7BL-5BS that occurred at high frequency in European wheat cultivars, indicating that the translocation is also adapted to Sichuan environments. These results indicate that some special karyotypes exist in Sichuan wheat cultivars, showing the relationship between karyotype and adaptation. Richer FISH bands of wheat chromosomes were revealed, and this can be used to investigate meiotic recombination conveniently.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：四川省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台