New microsatellites revealed strong gene flow among populations of a new outbreak pest, Athetis lepigone (Moschler)

文献类型： 外文期刊

第一作者： Zhu, W-C

作者： Zhu, W-C;Sun, J-T;Dai, J.;Chen, L.;Hong, X-Y;Huang, J-R

作者机构：

关键词： SSR; genetic diversity; genetic structure

期刊名称：BULLETIN OF ENTOMOLOGICAL RESEARCH （ 影响因子：1.75； 五年影响因子：2.007 ）

ISSN： 0007-4853

年卷期： 2018 年 108 卷 5 期

页码：

收录情况： SCI

摘要： Athetis lepigone (Moschler) (Lepidoptera: Noctuidae) is a new outbreak pest in China. Consequently, it is undear whether the emergence and spread of the outbreak of this pest are triggered by rapid in situ population size increases in each outbreak area, or by immigrants from a potential source area in China. In order to explore the outbreak process of this pest through a population genetics approach, we developed ten novel polymorphic expressed sequence tags (EST)-derived microsatellites. These new microsatellites had moderately high levels of polymorphism in the tested population. The number of alleles per locus ranged from 3 to 19, with an average of 8.6, and the expected heterozygosity ranged from 0.269 to 0.783. A preliminary population genetic analysis using these new microsatellites revealed a lack of population genetic structure in natural populations of A. lepigone. The estimates of recent migration rate revealed strong gene flow among populations. In conclusion, our study developed the first set of EST-microsatellite markers and shed a new light on the population genetic structure of this pest in China.

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