SSR Analysis of Genetic Diversity of Fragaria ananassa Duchesne Varieties Based on Fruit Shape
In this study,SSR molecular marker technology was used to distinguish 173 Fragaria anan-assa Duchesne varieties from Beijing Strawberry Nursery of national fruit germplasm,and PopGene software was used to cluster the varieties according to fruit shape.The results showed that the observed homozygosity of long conical,short conical,wide conical,conical/long wedge,conical/flat wedge,long wedge,near round,spherical/oval were 0.846 2,the observed homozygosity of flat spherical,round/semi-spherical,short conical/short wedge was 0.923 1-0.948 7,but the lowest homozygosity of short circular was 0.692 3.It was found that the relationship with other shapes was distant,and the relationship between other shapes was higher.According to fruit shape analysis,the polymorphisms of SSR amplified alleles of 173 strawberry varieties were found to be more homozy-gotes,in which the wedge-shaped/long-conical homozygotes were absent,while the short round homozygotes were the least,and the overall affinity of strawberry varieties was higher.
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万方数据
