Liangbing Chen^1,2 , Jianquan Li³

1 College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, 466000, China, Henan, China
2 College of Life Science and Technology, Guangxi University, Nanning, 530004, Guangxi, China
3 Hainan Institute of Tropical Agricultural Resources, Sanya 572025, Hainan, China
Author    Correspondence author
International Journal of Molecular Evolution and Biodiversity, 2024, Vol. 14, No. 2   doi: 10.5376/ijmeb.2024.14.0008
Received: 13 Jan., 2024    Accepted: 19 Feb., 2024    Published: 28 Mar., 2024

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Chen L.B, and Li J.Q., 2024, Genetic structure and diversity of common wild rice of different populations in Hainan, International Journal of Molecular Evolution and Biodiversity, 14(2): 62-70 (doi: 10.5376/ijmeb.2024.14.0008)

This study mainly explored the genetic diversity and structure of common wild rice (Oryza rufipogon Griff.) of Sanya population and Qionghai population in Hainan of China. By analyzing a total of 37 SSR markers in two populations, significant differences in genetic diversity and differentiation were revealed between these two populations. The results showed that the polymorphism rate of SSR loci in the Sanya population could reach 91.8919%, while the polymorphism rate in the Qionghai population was 81.0811%, indicating that the genetic variation level of the Sanya population was higher than that of the Qionghai population. By calculating the direct count heterozygosity, expected heterozygosity, and unbiased heterozygosity at each SSR locus, it was further confirmed that the Sanya population has a higher genetic variation. By calculating the genetic differentiation index (F_ST), the study found that the overall F_ST value of the two populations was 0.3909, indicating significant genetic structural differences between the two populations. The findings of this study can provide new insights into the genetic resources of common wild rice in Hainan and scientific basis for the conservation strategies of common wild rice in Hainan.

Ordinary wild rice (Oryza rufipogon Griff.); Genetic diversity; Genetic structure; SSR marking