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  • Title: [Identification of necrophagous fly species from 12 different cities and regions in China using inter-simple sequence repeat melocular markers].
    Author: Hu JL, Zheng XL, Wang Q, Chen XG, Huang YP.
    Journal: Nan Fang Yi Ke Da Xue Xue Bao; 2008 Apr; 28(4):524-8. PubMed ID: 18495581.
    Abstract:
    OBJECTIVE: To identify necrophagous fly species from different regions in China using inter-simple sequence repeat (ISSR) melocular markers and analyze their genetic difference and relationship. METHODS: Five carrion fly species were collected from 12 cities and regions in China, including M.domestica, Lucilia sericata, Chrysomyia megacephala, Helicophagella melanura, and Boetthcherisca peregrina. Twenty-two ISSR primers were designed and synthesized, from which 8 were selected to identify the necrophagous fly species. Cluster analysis was conducted based on distance matrices using unweighted pair group method. RESULTS: Totally 121 amplification samples were obtained using the 8 primers, and 679 clear and stable bands were visualized including 516 bands with polymorphisms. M.domestica, Lucilia sericata, Chrysomyia megacephala, Helicophagella melanura, and Boethcherisca peregrina from different regions in China produced their specific PCR band spectra. M. domestica from 10 different regions in China showed different inheritance patterns of the markers. Species-specific ISSR fragment was found among the necrophagous flys pecies. Cluster analysis among the most abundant carrion fly species demonstrated that M.domestica from 10 different regions could be divided into 4 groups at different levels. Most of the Chrysomyia megacephala and Lucilia sericata could be clustered in one tree. CONCLUSION: This study represents the first identification of the common necrophagous fly species in China. ISSR-PCR-based identification of the species reveals the genetic diversity and genotypic difference among M.domestica from 10 cities and regions in China.
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