We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
国外引进亚麻种质资源遗传多样性分析.
- Authors
郭栋良; 江海霞; 张喻; 叶佳丽; 王癑; 颜清城; 谢丽琼
- Abstract
【Objective】 The objective of this study is to analyze the genetic diversity of introduced flax germplasm resources and to provide abundant genetic parents for flax breeding. 【Method】 The genetic diversity, correlation analysis, principal component analysis and cluster analysis of 144 flax germplasms were conducted based on 24 agronomic traits. 【Result】 The genetic diversity of 144 materials in 13 quality traits and 11 quantitative traits ranged from 0.37 to 1.20 and 1.97 to 2.09, with an average of 0.83 and 2.03, showing a higher genetic diversity. The variation coefficients of quantitative traits were from 6.22% to 40.74%, and the variation coefficients of capsule number, 1,000 grain weight and technical length were higher than those of others traits, and these yield-related traits had a larger selection space in flax breeding. In the correlation analysis of agronomic traits, "height factor" had a significant negative correlation with "branch factor" and "seed size factor". Plant height had no significant correlation with the number of capsules. The main reason was that the oil-fiber dual purpose flax had higher plant height, longer technological length, more number of branches and more capsule numbers, which interfered with the correlation between plant height and capsule numbers. The nine principal components (PC1-PC9) accounted for about 73.57% of the phenotypic variation, and the first two principal components accounted for 32.31%. PC1 represented "characteristic trait factor of oil flax", and PC2 represented "characteristic trait factor of fiber flax". 144 flax germplasms were aggregated into two populations, fiber and oil based on 24 agronomic traits. divided into fiber flax and oil flax based on 24 agronomic traits. 【Conclusion 】 The introduced flax germplasm resources have high genetic diversity. Morphological markers were first used to distinguish fiber flax from oil flax, indicating that yield-related traits were mainly selected in the process of flax acclimation. These results provided a basis for the selection of parents and the innovation of germplasm in cultivated flax breeding.
- Publication
Xinjiang Agricultural Sciences, 2019, Vol 56, Issue 11, p2112
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2019.11.018