浙江农业学报2025，Vol.37Issue(2)：300-310,11.DOI:10.3969/j.issn.1004-1524.20240344
37份辣椒种质资源的表型性状及SRAP遗传多样性分析
Phenotypic characters and SRAP genetic diversity analysis of 37 pepper germplasm resources
摘要
Abstract
Based on 37 pepper germplasm resources,22 characters were analyzed statistically,and genetic diversity was analyzed by SRAP molecular markers.Cluster analysis was conducted based on observed phenotypic characters data and SRAP molecular markers respectively.There were significant differences in 22 phenotypic characters among pepper germplasm,the mean coefficient of variation and Shannon diversity index were 44.49%and 2.00,respec-tively.Seven principal components could represent 81.48%of genetic information of phenotypic characters.The test germplasm resources could be divided into three groups based on fruit shape,including short sheep horn pepper,long sheep horn pepper and lantern pepper.The average Nei's gene diversity index,Shannon diversity index and genetic similarity coefficient of the 17 SRAP primers were 0.42,0.61 and 0.75,respectively.Based on SRAP molecular markers,37 pepper germplasm resources were divided into 5 groups with a genetic similarity coefficient of 0.86.Thirty-seven pepper germplasm resources exhibit diverse phenotypic characters and rich genetic diversity,but SRAP molecular markers show that the germplasm resources of the tested materials are homogenized.We should introduce other types of germplasm resources for variety breeding.It could improve the selection efficiency of parents and fully utilize hybrid advantages to enhance the breeding accuracy by combining phenotypic characters observation and SRAP molecular markers assisted pepper breeding.关键词
辣椒/表型性状/聚类分析Key words
pepper/phenotypic character/cluster analysis分类
农业科技引用本文复制引用
郭赛赛,聂智星,傅鸿妃,王同林,邵志勇,王宏,郑积荣..37份辣椒种质资源的表型性状及SRAP遗传多样性分析[J].浙江农业学报,2025,37(2):300-310,11.基金项目
杭州市农科院科技创新与示范推广基金项目(2022HNCT-02) （2022HNCT-02）
杭州市农业科技协作与创新攻关项目"山地蔬菜关键技术研究与示范" （）
