Florida Entomologist (2014) 97, 699-706

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Hong-Xu Zhou, Rui-Ming Zhang, Dong Guo, Yun-Li Tao, Fang-Hao Wan, Qiang Wu and Dong Chu (2014)
Analysis of genetic diversity and structure of two clades of Aphelinus mali (Hymenoptera: Aphelinidae) in China
Florida Entomologist 97 (2), 699-706
Abstract: Our prior research revealed that there are 2 mitochondrial clades of Aphelinus mali (Haldeman) (Hymenoptera: Aphelinidae) in China, which are known as SD clade and LN clade. To further reveal their genetic characteristics and to determine the degrees of hybridization and gene flow between the 2 clades of A. mali in China, we analyzed the genetic diversities and genetic structures of 16 populations from 6 provinces (Shandong, Liaoning, Hebei, Shanxi, Xinjiang, and Yunnan) using 8 micro satellite loci. Our results showed that among the pure populations in the SD and LN clades, the greatest genetic diversities were found in the Qingdao, Shandong (QD) population and in the Dalian, Liaoning (DL) population. QD was the first population of the SD clade to be established, and DL was the first population of the LN clade to be established. In addition, genetic diversity was not substantially lower - and in some cases it was greater - in mixed-clade populations than in QD and DL. Individuals within each mitochondrial clade could not be differentiated based on microsatellite loci. Our data confirmed that the QD and DL populations, which were the first to be established in China, have served as bridgeheads for the other SD and LN populations in China. The results demonstrated that the hybridization or gene flow has occurred between the 2 mitochondrial clades.
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Full text of article
Database assignments for author(s): Dong Chu, Fang Hao Wan

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
molecular biology - genes

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Aphelinus mali (parasitoid) China (south)
Aphelinus mali (parasitoid) China (NE)
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