热带作物学报2024，Vol.45Issue(6)：1157-1166,10.DOI:10.3969/j.issn.1000-2561.2024.06.007
云南怒江州不同地区草果种质资源农艺表型性状的遗传多样性分析
Genetic Diversity Analysis of Agronomic Phenotypic Traits of Amo-mum tsao-ko Germplasm Resources at Different Areas in Nujiang,Yunnan,China
摘要
Abstract
The germplasm resources of Amomum tsao-ko(AT)at different altitudes in Nujiang,Yunnan were used as the materials to explore the genetic diversity of the agronomic phenotypic traits of AT germplasm resources at different areas.The genetic diversity of the agronomic phenotypic traits of AT was analyzed by measuring 8 agronomic pheno-typic traits,using coefficient of variation,genetic diversity index,variance analysis,correlation analysis,cluster analy-sis,principal component analysis and comprehensive evaluation.The results showed that there were large variations in the agronomic phenotypic traits,and the variation coefficient was 7.63％-32.5 1％,among which the variation coefficient of tiller number was the largest.The traits showed good diversity,H'(diversity index)was 1.933-2.355,with an average of 2.024.There were significant differences in the agronomic phenotypic traits among different germplasms.There was a significant positive correlation between fruit longitudinal diameter and fruit shape index and fruit weight.There was a significant positive correlation between fruit transverse diameter and fruit weight.There was a significant negative cor-relation between fruit shape index and leaf width.Cluster analysis divided the AT germplasm resources at different areas into two groups,among which the AT germplasm resources from the areas of Lushui and from Fugong were clustered into one group.Three principal components were extracted from eight agronomic phenotypic traits,and the cumulative contribution rate reached 76.940％,which could comprehensively reflect most of the information of agronomic pheno-typic traits of AT.The comprehensive evaluation results showed that SD12,SD20,SD7,SD17,SD18 and SD5 were ranked in the top six,and the comprehensive performance was better.The genetic diversity of the agronomic phenotypic traits of 24 AT germplasm resources in different areas of Nujiang,Yunnan is relatively rich,and the variability of AT germplasm resources in different areas is obvious.Among them,the agronomic phenotypic traits of SD12,SD20,SD7,SD17,SD18 and SD5 AT are better,which are more suitable for breeding.关键词
草果/农艺表型性状/遗传多样性/聚类分析/综合评价Key words
Amomum tsao-ko/agronomic phenotypic traits/genetic diversity/cluster analysis/comprehensive evaluation分类
农业科技引用本文复制引用
张映萍,和卫东,友胜军,吉训志,余少洪,苏凡,秦晓威,郝朝运,吴莲张,徐飞,和俊才..云南怒江州不同地区草果种质资源农艺表型性状的遗传多样性分析[J].热带作物学报,2024,45(6):1157-1166,10.基金项目
云南省郝朝运专家工作站"科技人才与平台计划"(No.202205AF150050) （No.202205AF150050）
云南省科协谷风林专家工作站"国家科技资源共享服务平台"(No.NTPGRC2022-014) （No.NTPGRC2022-014）
中央级公益性科研院所基本科研业务费专项(No.1630142022008). （No.1630142022008）
