亚麻种质资源遗传多样性分析OA

In order to understand the genetic background of flax germplasm resources and breed high-quality flax varieties,genetic diversity analysis,cluster analysis,principal component analysis and population structure were conducted on nine agronomic traits and six quality traits of 387 flax germplasm resources by phenotypic traits and molecular markers(SSR).The genetic diversity index of agronomic traits was between 0.70 and 2.08,and the coefficient of variation was between 5.55%and 129.18%.The genetic diversity index of quality traits ranged from 1.83 to 2.08,and the coefficient of variation ranged between 0.07%and 1.38%.A total of 320 SSR loci were amplified with an average of 11.81 loci per primer pair;the effective allele number was 1.1991-1.8230,PIC of primers varied from 0.2489 to 0.6257;at the genetic similarity coefficient of 0.66,the 387 flax germplasm resources could be divided into five groups,and cluster analysis based on agronomic traits and quality cluster analysis could also be divided the germplasm resources into five groups.