GENETIC STRUCTURE OF GRAPE PHYLLOXERA IN CHINA
The genetic structure of four Chinese geographic populations of grape phylloxera was analyzed using seven polymorphic microsatellite markers. The mean effective number of allele (Ne) ranged from 1.7143 to 2.0077, while expected heterozygosity (He) varied from 0.2435 to 0.2580. In addition, the mean Shannon values were all less than 1. All those data showed that genetic variations of four grape phylloxera geographic populations were fairly low. The Neis genetic distances (0.4531-0.4694) between SHJ and each of the other three geographic populations were larger than those (0.0028-0.0114) between two of the other three geographic populations. The UPGMA cluster analysis indicated that the four phylloxera geographic populations were clustered into two groups based on the dendrogram of Neis genetic distances. All samples from SHJ formed one clade, and the other samples from SXX, HNH and LNX were grouped into another one.
Sun, Q.-H., Chen, Y.-C., Du, Y.-P. and Zhai, H. 2011. GENETIC STRUCTURE OF GRAPE PHYLLOXERA IN CHINA. Acta Hort. (ISHS) 904:25-32
Daktulosphaira vitifoliae, grape phylloxera, SSR marker, genetic diversity, genetic differentiation