Genetic diversity and genetic structure of the mid-day gerbil population in Inner Mongolia-Xinjiang Plateau
To understand the impact of landscape and environmental factors on the population structures of the mid-day gerbil (Meriones meridianus) in Inner Mongolia-Xinjiang Plateau, we analyzed eight microsatellite loci for a total of 160 individuals from 14 regions. The results showed that there was a high level of genetic diversity in the population for the number of alleles per locus (A) 22. 50 ±3.02 (19 to 28) , and polymorphic loci (PIC) 0. 912 ±0. 02 (0. 872 to 0. 929). The observed heterozygosity (H0 ) was 0. 68 ± 0. 19 (0. 52 to 0. 85 ) , and the expected heterozygosity ( HE ) was 0. 79 ± 0. 08 (0. 71 to 0. 85 ). The analysis of molecular variance ( AMOVA) suggested that the gerbils were divided into three discrete groups (P <0. 001). The result of Mantel test showed that there were no significant correlations between genetic distance and geographic distance (P = 0. 2700). But, in the distance-based multivariate analysis for a linear model ( DISTLM) , altitude plays a key role in increasing genetic structure of the gerbil population in the plateau.
国家科技期刊平台
NSTL
万方数据
维普
