浙江农业学报 ›› 2026, Vol. 38 ›› Issue (2): 258-268.DOI: 10.3969/j.issn.1004-1524.20250061

• 园艺科学 • 上一篇    下一篇

基于特异性、一致性、稳定性测试的朱顶红品种资源遗传多样性分析

钟弘睿1,2(), 褚云霞1,3, 邓姗1,3, 张余1,3, 张永春1, 任丽1,3, 赵洪1,3, 章毅颖1,3, 刘昆1,3, 曹建国2,*(), 陈海荣1,3,*()   

  1. 1.上海市农业科学院 农产品质量标准与检测技术研究所, 上海 201403
    2.上海师范大学 生命科学学院, 上海 200234
    3.农业农村部植物新品种测试(上海)分中心, 上海 201415
  • 收稿日期:2025-01-17 出版日期:2026-02-25 发布日期:2026-03-24
  • 作者简介:钟弘睿,研究方向为朱顶红品种保护与分子标记开发。E-mail: 461692541@qq.com
  • 通讯作者: *曹建国,E-mail: cao101@shnu.edu.cn
    陈海荣,E-mail: shdus@saas.sh.cn
  • 基金资助:
    上海市农业科学院质标所创新团队建设计划[zbcx(1-3)

Genetic diversity analysis of Hippeastrum breed resources based on distinctness, uniformity, and stability testing

ZHONG Hongrui1,2(), CHU Yunxia1,3, DENG Shan1,3, ZHANG Yu1,3, ZHANG Yongchun1, REN Li1,3, ZHAO Hong1,3, ZHANG Yiying1,3, LIU Kun1,3, CAO Jianguo2,*(), CHEN Hairong1,3,*()   

  1. 1. The Institute of Agro-Food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403
    2. College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
    3. Shanghai Sub-Center for New Plant Variety Tests, Ministry of Agriculture and Rural Affairs, Shanghai 201415, China
  • Received:2025-01-17 Online:2026-02-25 Published:2026-03-24

摘要:

为给朱顶红属种质资源鉴定和育种策略制定提供科学依据,本研究综合采用主成分分析、相关分析和聚类分析,基于29项表型性状对164个朱顶红品种开展特异性、一致性、稳定性(DUS)测试。结果显示,个体测量性状的品种内变异系数为5.22%~15.57%,花:花梗长度的Shannon-Wiener多样性指数最大,为1.90。在群体目测性状中,Shannon-Wiener多样性指数排前3的依次为花:外花被片形状(1.865)、花:颜色分布(1.724)、花:内侧主色(1.705)。从29项表型性状中提取到8个主成分,其累积贡献率为66.95%,在这8个主成分上载荷最大的因子分别为花:外花被片宽度、花柱:颜色、花:直径、花:花冠正面形状、花序:花数、花序梗:基部花青甙显色、花:外花被片形状、花:颜色分布。供试性状中,花:颜色分布、花:外花被片形状除了与少数性状具有极显著(p<0.01)相关性外,与其他大部分性状没有显著相关性。聚类分析将164个品种分为3个类群,分别包含78、65、21个品种。

关键词: 朱顶红, 遗传多样性, 种质资源鉴定

Abstract:

To provide a scientific basis for the identification of germplasm resources and the formulation of breeding strategies in the genus Hippeastrum, this study comprehensively employed principal component analysis (PCA), correlation analysis, and cluster analysis to conduct distinctness, uniformity, and stability (DUS) testing on 164 Hippeastrum cultivars based on 29 phenotypic traits. The results showed that the intraspecific coefficient of variation for the individual measurement traits ranged from 5.22% to 15.57%. Among all traits, the Shannon-Wiener diversity index of flower: pedicel length was the highest, reaching 1.90. For the group visual observation traits, the top three traits with the highest Shannon-Wiener diversity index were flower: shape of outer tepal (1.865), flower: color pattern (1.724), and flower: color of inner side (1.705). Eight principal components were extracted from the 29 traits, with a cumulative contribution rate of 66.95%. The factors with the highest loadings on these eight principal components were flower: width of outer tepal, pistil: color, flower: diameter, flower: shape in front view, inflorescence: number of flowers, peduncle: anthocyanin coloration at base, flower: shape of outer tepal, flower: color pattern. Among the tested traits, flower: color pattern, flower: shape of outer tepal showed significant (p<0.01) correlations only with a few traits, while no significant correlations were observed with most other traits. The 164 cultivars were classified into 3 groups, containing 78, 65, and 21 cultivars respectively, by cluster analysis.

Key words: Hippeastrum, genetic diversity, identification of germplasm resource

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