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- Title
不同品种番茄果实性状遗传多样性及聚类分析.
- Authors
李岳雁; 李玉姗; 王帆; 郭雅文; 王飞燕; 高杰; 宋羽
- Abstract
[Objective] By researching and analyzing the fruit characteristics of 97 tomato varieties, some tomato varieties with specific characteristics were selected to provide a basis for the effective use of variety resources in the future. [Method] Using 97 different tomato varieties grown under the same conditions as experimental materials, 21 fruit traits of each variety were investigated, including fruit transverse diameter, fruit longitudinal diameter, fruit shape index, pulp thickness, number of ventricles, petiole length, stem depression size, leaf length, leaf width, second inflorescence node, first inflorescence node, single inflorescence fruit number, plot yield and single inflorescence fruit number According to the results, the genetic diversity, correlation analysis, path analysis and cluster analysis of tomato fruit shape were analyzed. [Result] The genetic diversity index (H') of phenotypic traits of 97 tomato cultivars varied from 0.89 to 2.29, and the variation coefficient ranged from 11.17% to 54.03%. The variation coefficient of fruit number in single inflorescence was the largest (54.03%), and the variation coefficient of second inflorescence node was the smallest (11.17%). In the correlation analysis, 14 characters were correlated with the transverse diameter and shape of fruit, and 1 character was correlated with the color of ripe fruit. The 97 tomato resources were divided into 5 groups by cluster analysis according to the principle that the varieties of the same group have great genetic similarity and the varieties of different groups have great differences.[Conclusion] The tomato resources in this study are rich in genetic diversity of fruit traits, and each of the five groups has excellent traits to be discovered. For identifying specific germplasm resources, screening core genebanks and improving the yield.
- Publication
Xinjiang Agricultural Sciences, 2022, Vol 59, Issue 9, p2147
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2022.09.008