福建农业学报2023，Vol.38Issue(11)：1267-1276,10.DOI:10.19303/j.issn.1008-0384.2023.11.002
福建省山药初级核心种质的构建
Establishing a Primary Core Collection of Chinese Yam Germplasms in Fujian
摘要
Abstract
[Objective]A primary core collection of Chinese yam germplasms in Fujian was established for conserving and breeding the natural resources.[Method]Fifty-five locally cultivated Chinese yams were categorized according to 7 quantitative and 13 descriptive traits.A cluster analysis was conducted on the data using the squared Euclidean distance method to develop a germplasm collection by priority sampling.The representativeness of the Primary Core Collection on Chinese Yams(PCCCY)was statistically evaluated using the agronomic traits as well as ISSR molecular markers.[Result]PCCCY received 43.6%of the previous collection.It reduced the redundancy of the old version but retained the breeding varieties as well as the germplasms of outstanding characteristics or unique local features.No significant differences were found in the means,variances,coefficients of variation,and Shannon-Wiener index between the PCCCY and the previous collection on various traits.On the quantitative traits,other than stem thickness,the PCCCY preserved 84.9%to 100%of the variation range of the previous collection.Whereas the entire original descriptive traits,except the weakest growth vigor,were kept intact.No significant differences in the number of ISSR molecular marker alleles,effective alleles,Shannon-Wiener index,and Nei's genetic diversity index were found between the two collections.And 98.6%of the polymorphic loci in the original version were retained.The principal component analysis based on agronomic traits and the principal coordinate analysis based on ISSR molecular markers confirmed a high representativeness on the varieties by the newly established PCCCY.[Conclusion]The primary core collection established by this study for the Chinese yam germplasms in the province satisfactorily represented the genetic diversity of the natural resource.The PCCCY was deemed to facilitate future efforts in conserving and utilizing the local Chinese yam species.关键词
山药/初级核心种质/农艺性状/ISSR标记/福建省Key words
Chinese yam/primary core collection/agronomic traits/ISSR marker/Fujian Province分类
农业科技引用本文复制引用
张武君,陈菁瑛,刘保财,赵云青,黄颖桢..福建省山药初级核心种质的构建[J].福建农业学报,2023,38(11):1267-1276,10.基金项目
福建省农业种质资源创新专项(ZZZYCXZX202208) （ZZZYCXZX202208）
福建省药用植物种质资源库(圃)(ZYBHDWZX202203) （圃）
福建省农业高质量发展超越"5511"协同创新工程项目(XTCXGC2021003-5) （XTCXGC2021003-5）
福建省农业科学院药用植物科技创新团队建设项目(CXTD2021014-2) （CXTD2021014-2）
福建省农业科学院生产性工程化实验室建设项目(2015GCH-6) （2015GCH-6）
