辣椒自交系的基因型值分析  

Study on Hot Pepper(Capsicum annuum L) Inbred by Genotype Value

作　　者：任羽[1] 王得元[2] 尹俊梅[1] 张银东[3] 

机构地区：[1]中国热带农业科学院热带作物品种资源研究所,儋州571737 [2]广东省农业科学院蔬菜研究所广东省果蔬新技术研究重点实验室,广州510640 [3]中国热带农业科学院热带作物生物技术国家重点实验室,海口571101

出　　处：《中国农学通报》2006年第3期53-56,共4页Chinese Agricultural Science Bulletin

基　　金：广东省自然科学基金"辣椒分子标记图谱构建和QTL定位的研究"(000162);广州省重点科技攻关项目"分子标记辅助蔬菜新品种选育的研究"(A20202;2002A2070201);广东省农业科学院院长基金项目"辣椒自交系的形态特征和SRAP分析及栽培模式的研究"(2001-基金-08)。

摘　　要：利用Steuclid遗传距离对31个自交系的10个性状的基因型值基于UPGMA法进行研究,在遗传距离GD为6.0处,可将辣椒的两个变种分开,即Capsicumannuumvar.grossum变种群和Capsicumannuumvar.longum变种群;在遗传距离GD为4.6处,可将31个自交系分为5类。第一类:7号,灯笼椒变种;第二类:9号和5号,植株较高大、晚熟、感病;第三类:25号,中抗、矮杆、早熟;第四类:6、12、10、19、14、11、29、31、30、24、16、20、18、17、21、15、13、23、22、8、4号,这一类在熟性、抗性方面属于中间类型,在植株高度方面存在较大的差异;第五类:27、26、28、3、2、1号,植株高大、晚熟、抗病。这种分类结果有助于利用这些自交系进行杂交亲本的选配。Cluster analysis based on the genotype values of ten traits of thirty-one pepper inbred lines were studied by UPGMA and Steuclid genetic distances calculation methods. In the cluster analysis based on Steuclid genetic distances calculation, C. annuum vat. longum and C. annuum var. grossum were divided at GD6.0; At GD4.6, thirty-one pepper inbred lines were classified into five groups： group I including No. 7 only which belong to bell pepper; group Ⅱ including No. 9 and No. 5 with high-plants, late-maturing, and susceptibility to disease; group Ⅲ including No.25 inbred line, which possessed mid-resistance, low plant height, and early-maturing; group IV including No. 6, 12, 10, 19, 14, 11, 29, 31, 30, 24, 16, 20, 18, 17, 21, 15, 13, 23, 22, 8, 4, which was medium in traits including maturity and resistance, which was different in plant height; group V including No. 27, 26, 28, 3, 2, 1, which had high plant and late maturing and better resistance. These results are beneficial for us to elect parents of hybrid

关 键 词：辣椒 基因型值 聚类分析 

分 类 号：Q81[生物学—生物工程]