| 40个河南省审定小麦品种遗传多样性的SSR标记分析 |
| |
| 引用本文： | 耿惠敏,刘红彦,宋玉立,王俊美,李锁平.40个河南省审定小麦品种遗传多样性的SSR标记分析[J].西北农业学报,2005,14(2):27-32. |
| |
| 作者姓名： | 耿惠敏 刘红彦 宋玉立 王俊美 李锁平 |
| |
| 作者单位： | 1. 河南大学,开封,475001
2. 河南省农科院植保所,郑州,450002 |
| |
| 摘 要： | 利用小麦基因组42条染色体臂上的43个SSR标记对40个河南省审定小麦品种的遗传多样性进行了研究。结果发现,43对SSR引物中有31对(占72%)扩增出带并具有多态性,这31对引物共检测到186个等位变异,每对引物能检测到2～14个,平均位点为6个。聚类分析表明,SSR标记能将40个品种相互区分开。品种间遗传距离(GD)变幅为0.231～0.593,平均GD值为0.404。据此认为,SSR标记揭示出这40个河南省审定小麦品种遗传变异较小,遗传基础狭窄。
|
| 关 键 词： | 小麦 SSR标记 遗传距离 聚类分析 |
| 文章编号： | 1004-1389(2005)02-0027-06 |
| 收稿时间： | 2004/4/20 0:00:00 |
| 修稿时间： | 2004年4月20日 |
SSR Analysis of Genetic Diversity among Forty Released Wheat Cultivars in He'nan Province |
| |
| GENG Hui-min,LIU Hong-yan,SONG Yu-li,WANG Jun-mei and LI Suo-ping.SSR Analysis of Genetic Diversity among Forty Released Wheat Cultivars in He''''nan Province[J].Acta Agriculturae Boreali-occidentalis Sinica,2005,14(2):27-32. |
| |
| Authors: | GENG Hui-min LIU Hong-yan SONG Yu-li WANG Jun-mei and LI Suo-ping |
| |
| Institution: | GENG Hui-min~1,LIU Hong-yan~2,SONG Yu-li~2,WANG Jun-mei~2 and LI Suo-ping~1 |
| |
| Abstract: | The genetic diversity among 40 released He`nan wheat cultivar (Triticum aestivum L.) was investigated by using 43 simple sequence repeats (SSR) markers located on 42 chromosomes of wheat. 31 out of 43 SSR primers (72%) could amplify the polymorphic patterns. A total of 186 alleles had been identified in these elite cultivars. Each pair of SSR primer could detect 2 to 14 alleles with an average of 6. Based on SSR data, the genetic distance(GD) among 40 He`nan elite wheat cultivars was calculated. The mean GD was 0.404, varying from 0.231 to 0.593. It indicated that the genetic basis of He`nan wheat cultivars was very narrow. |
| |
| Keywords: | Wheat SSRs Genetic distance Cluster analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《西北农业学报》浏览原始摘要信息 |
| 点击此处可从《西北农业学报》下载免费的PDF全文 |
|
