Genetic diversity and population structure of Sitodiplosis mosellana in Northern China.

ABSTRACT: The wheat midge, Sitodiplosis mosellana, is an important pest in Northern China. We tested the hypothesis that the population structure of this species arises during a range expansion over the past 30 years. This study used microsatellite and mitochondrial loci to conduct population genetic analysis of S. mosellana across its distribution range in China. We found strong genetic structure among the 16 studied populations, including two genetically distinct groups (the eastern and western groups), broadly consistent with the geography and habitat fragmentation. These results underline the importance of natural barriers in impeding dispersal and gene flow of S. mosellana populations. Low to moderate genetic diversity among the populations and moderate genetic differentiation (F ST = 0.117) be

SUBMITTER: Duan Y 

PROVIDER: S-EPMC3827046 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature