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First development and characterization of 27 novel microsatellite markers in the dobsonfly Neoneuromus ignobilis (Megaloptera: Corydalidae) at genome-scale level

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Abstract

The dobsonfly species Neoneuromus ignobilis Navás (Megaloptera: Corydalidae) is endemic to but widely distributed from eastern and southeastern Asia, being an important insect indicator for freshwater biomonitoring. At present, there is no report on the development of microsatellites of Megaloptera. Here, we developed 27 novel microsatellite markers of N. ignobilis from 850,920 candidate microsatellites with the stringent screening criteria considering the amplification success rate, the presence or absence of stutter peaks, the peak intensity, the polymorphism of the loci, the heterozygosity, and the number of alleles. The allele number of 27 microsatellite markers ranges from 3 to 12 with an average value of 6.19 per locus. The observed heterozygosity (HO) and expected heterozygosity (HE) revealed a range from 0.000 to 0.947 and 0.000 to 0.842, respectively. We constructed three panels (MP panel, most polymorphic; SS panel, most stringent strategy; ALL panel, total 27 microsatellite markers) and compared the analyses on population genetic diversity and structure. The result showed that the MP panel can significantly improve the analyses of individual assignment and genetic diversity. Accordingly, we advocate selecting the most polymorphic microsatellite marker for analyzing population genetics based on microsatellite data. The present work represents the first study on the microsatellite development of Megaloptera.

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Acknowledgements

This research was supported by the National Natural Science Foundation of China (Nos. 31972871, 31672322).

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Correspondence to Xingyue Liu.

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Lin, A., Wei, S., Cao, L. et al. First development and characterization of 27 novel microsatellite markers in the dobsonfly Neoneuromus ignobilis (Megaloptera: Corydalidae) at genome-scale level. Appl Entomol Zool 55, 149–158 (2020). https://doi.org/10.1007/s13355-019-00664-8

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  • DOI: https://doi.org/10.1007/s13355-019-00664-8

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