热带作物学报2025，Vol.46Issue(3)：585-596,12.DOI:10.3969/j.issn.1000-2561.2025.03.008
76份蝴蝶兰种质资源表型性状遗传多样性分析及综合评价
Genetic Diversity Analysis and Comprehensive Evaluation of Pheno-types in 76 Germplasm Resources of Phalaenopsis
摘要
Abstract
In order to investigate the genetic diversity of phenotypes and improve the utilization efficiency of different germplasm resources in Phalaenopsis,76 germplasm resources of Phalaenopsis were investigated on the phenotype diversity by differential analysis,correlation analysis,principal component analysis and cluster analysis.The ornamen-tal value of big-flower,medium-flower and small-flower cultivars were evaluated comprehensively.The results showed that plant height was the most significant difference among the cultivars,and the flower number per plant was the largest coefficient of variation.Most phenotypes showed significant or extremely significant positive correlation.Flower width and length were the main factors leading to the genetic diversity of phenotypes in Phalaenopsis.The 11 phenotypes were divided into three categories by the R-type cluster analysis,among which flower length and width were clustered firstly when the Euclidean distance was 1.1,indicating the highest degree of correlation between them.76 germplasm resources could be divided into three categories by Q-type cluster analysis,big flower,medium flower and small flower cultivars.In the comprehensive evaluation of ornamental value,the big flower Baihuahonxin,Huanying and V3,the medium flower Chulian,Huangpao,Jixiang,Memphis,79,Ama and the small flower Auspicious,Xiaomeihua,Christmas Tree,LL29 and Queen Beer obtained higher scores.The results would provide a reference for the efficient utilization of germplasm resources and parent selection of crossbreeding in Phalaenopsis.关键词
蝴蝶兰/种质资源/表型性状/遗传多样性/综合评价Key words
Phalaenopsis/germplasm resources/phenotypes/genetic diversity/comprehensive evaluation分类
园艺学与植物营养学引用本文复制引用
丁玲,赵莹,冯可婧,杨春梅,阮继伟,瞿素萍,吴丽芳,余蓉培..76份蝴蝶兰种质资源表型性状遗传多样性分析及综合评价[J].热带作物学报,2025,46(3):585-596,12.基金项目
云南省种子种业联合实验室项目(No.202205AR070001-7) （No.202205AR070001-7）
云南省乡村振兴科技专项(No.202304BI090016). （No.202304BI090016）
