YIN Yihe,AN Shibo,YU Cuixiang,et al.Genetic Diversity Analysis on Agronomic Traits of Cucurbita L.Germplasm Resources in Jilin of China[J].Northern Horticulture,2024,(11):9-15.[doi:10.11937/bfyy.20234506]
吉林省南瓜属种质资源的遗传多样性分析
- Title:
- Genetic Diversity Analysis on Agronomic Traits of Cucurbita L.Germplasm Resources in Jilin of China
- 文章编号:
- 1001-0009(2024)11-0009-07
- Keywords:
- pumpkin; germplasm resources; agronomic traits; principal component analysis; cluster analysis
- 分类号:
- S 642.1
- 文献标志码:
- A
- 摘要:
- 以收集的40份地方南瓜属种质资源为试材,采用变异分析、主成分分析和聚类分析的方法,研究了种质资源的27个农艺性状的遗传多样性,以期为保护地方南瓜属种质资源、加快地方南瓜属种质资源品种改良和选育进程提供参考依据。结果表明:40份南瓜属地方资源的27个农艺性状变异系数幅度为12.71%~85.15%,平均变异系数为34.54%,其中果实平均变异系数(36.51%)明显高于种子性状平均变异系数(28.90%)。主成分分析提取了4个主成分,累积贡献率为48.16%,基本可以概括这些性状的总信息,种子性状的贡献率大于果实性状的贡献率。聚类分析将40份南瓜种质在欧式距离12.32处分为四大类,分别包括1、6、23、10份种质,其中第一大类仅有28号,其突出性状为商品瓜纵径,长达32 cm,与其他39份材料有较大的遗传差距。
- Abstract:
- Variation analysis,principal component analysis and cluster analysis were used to study the genetic diversity of 27 agronomic traits of 40 local pumpkin germplasm resources,in order to provide reference for protecting local pumpkin germplasm resources and accelerating the improvement and breeding process of local pumpkin germplasm resources.The results showed that the variation coefficient of 27 agronomic traits of 40 local resources of pumpkin ranged from 12.71% to 85.15%,with an average variation coefficient of 34.54%.The average variation coefficient of fruit (36.51%) was significantly higher than that of seed (28.90%).Principal component analysis extracted four principal components,and the cumulative contribution rate was 48.16%,which could basically summarize the total information of these traits,and the contribution rate of seed traits was greater than that of fruit traits.By cluster analysis,40 pumpkin germplasm were divided into four categories at European distance 12.32,included 1,6,23 and 10 germplasm,respectively.The first category was only No.28,and its prominent trait was the longitudinal diameter of commercial melon,up to 32 cm,which had a large genetic gap with the other 39 materials.
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备注/Memo
第一作者简介:尹一合(1998-),女,硕士研究生,研究方向为经济植物资源与育种。E-mail:938369176@qq.com.责任作者:赵福顺(1963-),男,本科,研究员,现主要从事经济植物资源与育种等研究工作。E-mail:zhfs1963@163.com.基金项目:长春市科技发展计划资助项目(21ZGN03);吉林省农业科技创新工程资助项目(KYJF2023DX010)。收稿日期:2023-12-25