首页 | 本学科首页   官方微博 | 高级检索  
     检索      

应用AFLP技术分析甘蔗引进品种的遗传多样性
引用本文:劳方业,刘睿,何慧怡,邓海华,陈仲华,陈健文,符成,张垂明.应用AFLP技术分析甘蔗引进品种的遗传多样性[J].广东农业科学,2008(4):13-16.
作者姓名:劳方业  刘睿  何慧怡  邓海华  陈仲华  陈健文  符成  张垂明
作者单位:广州甘蔗糖业研究所/广东省甘蔗改良与生物炼制重点实验室,广东,广州,510316
基金项目:广东省自然科学基金 , 引进国际先进农业科技计划(948计划)
摘    要:采用15对多态性较好的AFLP引物对36个甘蔗引进品种的遗传多样性进行分析,结果表明,每对引物的多态性条带数为45.9条、多态率为61.50%,遗传相似系数在0.6578~0.8762之间、平均为0.7459。聚类分析结果表明,36个引进品种为同一大类,而当地亲本材料粤农73-204独立成另一大类,说明粤农73-204与引进品种之间的亲缘关系较远;36个引进品种可进一步分为3类,相同系列的品种大多数能归为同一类,可见相同区域、相同机构选育的品种亲缘关系相对较近。而在系谱中亲缘关系密切的品种、大部分能归为同一类。遗传多样性指数分析结果显示,36个引进品种的遗传多样性指数为0.2470。指出加强引进品种的研究利用是促进我国甘蔗育种发展、有效提高甘蔗品种遗传多样性的重要措施。

关 键 词:甘蔗  引进品种  AFLP  遗传多样性
文章编号:1004-874X(2008)04-0013-04
修稿时间:2008年1月7日

Genetic diversity of introduced sugarcane varieties assessed by AFLP analysis
LAO Fang-ye,LIU Rui,HE Hui-yi,DENG Hai-hua,CHEN Zhong-hua,CHEN Jian-wen,FU Cheng,ZHANG Chui-ming.Genetic diversity of introduced sugarcane varieties assessed by AFLP analysis[J].Guangdong Agricultural Sciences,2008(4):13-16.
Authors:LAO Fang-ye  LIU Rui  HE Hui-yi  DENG Hai-hua  CHEN Zhong-hua  CHEN Jian-wen  FU Cheng  ZHANG Chui-ming
Abstract:Genetic diversity in 36 introduced sugarcane varieties was studied using 15 pairs of AFLP primers.The results showed that the average polymorphic loci per pair primer were 45.9,and the percentage of polymorphism loci was 61.50%.The genetic similarity indexes of introduced varieties varied from 0.6578 to 0.8762,with an average of 0.7459.The 36 introduced varieties were clustered into one group,and YN73-204(local parent) into another group alone,which implied that the former ones were of higher genetic similarity to each other than to the latter.The former group was further divided into 3 sub-groups.Most of the varieties of same series could be classified into same sub-groups,indicating that there was a closer genetic relationship among the varieties selected by the same organization,and most of varieties with close relationship in family-tree could also be classified into same sub-groups.Genetic diversity index in the 36 introduced varieties was at low level with a value of 0.2470.The study revealed that the use of introduced varieties as parents in our sugarcane breeding program would be helpfully for broadening genetic diversity,and so facilitate the sugarcane improvement.
Keywords:sugarcane  introduced variety  AFLP  genetic diversity
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号