https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2025, Vol. 52 ›› Issue (7): 1817-1827.doi: 10.16420/j.issn.0513-353x.2024-0501

• 遗传育种·种质资源·分子生物学 • 上一篇    下一篇

蝴蝶兰品种DUS测试数量性状分级及遗传多样性研究

钟声远1, 罗宇婷2, 陈剑锋1, 钟海丰1, 陈宇华1, 刘中华1,*()   

  1. 1 福建省农业科学院作物研究所,农业农村部植物新品种测试福州分中心,福州 350013
    2 福建农业职业技术学院,福州 350303
  • 收稿日期:2024-07-15 修回日期:2024-11-09 出版日期:2025-07-23 发布日期:2025-07-23
  • 通讯作者:
    *E-mail:
  • 基金资助:
    福建省科技计划公益类项目(2023R10297005); 福建省农业科学院青年自由探索科技创新项目(ZYTS2023005); 福建省农业科学院青年创新团队项目(CXTD2021008-3); 福建省林业科技项目(ZMGG-0710)

Grading of Quantitative Traits and Genetic Diversity in DUS Test of Phalaenopsis Cultivars

ZHONG Shengyuan1, LUO Yuting2, CHEN Jianfeng1, ZHONG Haifeng1, CHEN Yuhua1, and LIU Zhonghua1,*()   

  1. 1 Fuzhou Sub-center for New Plant Variety Tests,Ministry of Agriculture and Rural Affairs,Crop Research Institute,Fujian Academy of Agricultural Sciences,Fuzhou 350013,China
    2 Fujian Vocational College of Agriculture,Crop Research Institute,Fujian Academy of Agricultural Sciences,Fuzhou 350303,China
  • Received:2024-07-15 Revised:2024-11-09 Published:2025-07-23 Online:2025-07-23

摘要:

基于《植物新品种特异性、一致性和稳定性测试指南 蝴蝶兰》,对416份蝴蝶兰品种资源的15个数量性状进行分级,并对其遗传多样性进行研究。结果表明,15个性状均可分为9级表达状态,除花序长、花数量和花序梗长呈现偏左分布,其余性状基本为中间高两端低的分布趋势;各数量性状品种间变异系数较大,遗传多样性指数较高,品种内变异系数较小,说明供试品种稳定性较好且有丰富的遗传多样性;主成分分析可以归纳为植株大小、花数量和花朵大小3个集群,可增加花数量作为DUS测试分组性状;聚类分析在平方欧式距离为5时可将416份品种分为7大类,大部分品种集中在其中4大类。

关键词: 蝴蝶兰, DUS测试, 数量性状, 分级, 遗传多样性

Abstract:

Based on the《Guidelines for the Conduct of Tests for Distinctness,Uniformity and Stability (DUS)of New Varieties of Plants:Phalaenopsis》,a study was conducted on the classification of 15 quantitative traits among 416 Phalaenopsis orchid cultivars and their genetic diversity. The results showed that all 15 traits could be divided into nine expression states,with inflorescence length,flower number,and peduncle length displaying a left-skewed distribution,while the remaining traits exhibited a generally normal distribution pattern with a central peak and declining tails. The coefficients of cultivars was high for each quantitative trait,and the index of gentic diversity was high,whereas within-variety coefficients of variation were relatively low,indicating good stability and abundant genetic diversity among the tested cultivars. Principal component analysis grouped the traits into three clusters: plant size,flower number,and flower size,with the inclusion of flower number as a potential DUS test grouping trait. Cluster analysis divided the 416 cultivars into seven major groups at a squared Euclidean distance of 5,with the majority concentrated in four groups.

Key words: Phalaenopsis, DUS testing, quantitative traits, grade, genetic diversity