甘蔗野生种滇蔗茅利用研究Ⅲ.滇蔗茅杂种F_1群体的表型变异与遗传多样性分析  

Utilization of Erianthus rockii Ⅲ.Genetic Diversity Analysis of Phenotypic Traits in F_1 Population of Saccharum officinarum L.×E. rockii

作　　者：陆鑫[1] 刘新龙[1] 毛钧[1] 刘洪博[1] 苏火生[1] 马丽[1] 蔡青[1,2,3] 

机构地区：[1]云南省农业科学院甘蔗研究所/云南省甘蔗遗传改良重点实验室,开远661699 [2]云南省农业科学院生物技术与种质资源研究所,昆明650223 [3]云南大学生命科学院,昆明650091

出　　处：《植物遗传资源学报》2013年第4期749-753,共5页Journal of Plant Genetic Resources

基　　金：麻类;甘蔗;茶;桑种质资源发掘与创新利用(2013BAD01B03-15);云南省应用基础研究计划重点项目(2006C0013Z);云南省中青年学术技术带头人后备人才培养项目(2009CI059);国家人事部留学人员科技活动优秀项目;2012年国家农业部农作物种质资源保护项目"甘蔗种质资源收集;编目;更新与利用";国家科技部科技基础条件平台-国家农作物种质资源平台项目"云南作物种质资源共享平台";国家现代农业产业技术体系甘蔗产业技术体系开远综合试验站(CARS-20-6-13);云南省重点新产品开发计划项目(2010BB011)

摘　　要：选用8个数量性状和18个质量性状对滇蔗茅杂种F1群体的表型变异、多样性及聚类关系进行分析。结果表明:数量性状的遗传变异主要来自于有效茎、单茎重及糖分;质量性状的叶鞘背毛群与内叶耳形状多样性丰富,根点排列、芽位、茎形、节间性状、生长裂缝等5个性状均表现一致;聚类分析表明62份后代材料可分为4大类群和10个亚类群。遗传多样性和聚类分析为杂交后代的筛选及其杂交或回交利用提供了科学依据。Based on 8 quantitative traits and 18 qualitative traits,the phenotypic variation,genetic diversity,and cluster relationships were investigated in a set of 62 populations of Saccharum officinarum and Erianthus rockii.The results showed that the phenotypic variations of quantitative traits were primarily from millable stalk,average stalk weight,and sucrose in cane.Furthermore,the genetic diversity were abundant in hair group 57 and shape of inner auricle,however,root primordial,bud placement,stalk shape,internode shape,and growth crack did not segregate.Moreover,the cluster analysis indicated these progenies could be divided into 4 groups and 10 subgroups.Genetic diversity and cluster analysis would be stronger support to the hybrid offspring selection and its crossing or back-crossing.

关 键 词：滇蔗茅 种质创新 表型变异 遗传多样性 

分 类 号：S566.1[农业科学—作物学]