Population genetic structure of Cheyletus malaccensis (Acari: Cheyletidae) in China based on mitochondrial COI and 12S rRNA genes

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• 作者：Xiaoqiang Yang ; Qingtian Ye ; Tianrong Xin ; Zhiwen Zou…
• 刊名：Experimental and Applied Acarology
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：69
• 期：2
• 页码：117-128
• 全文大小：740 KB
• 刊物主题：Entomology; Animal Systematics/Taxonomy/Biogeography; Animal Genetics and Genomics; Animal Ecology; Life Sciences, general;
• 出版者：Springer Netherlands
• ISSN：1572-9702
• 卷排序：69

文摘

Cheyletus malaccensis is a predatory mite widely distributed in grain storages. It has been regarded as an important biological control agent for pest mites. In this study, we investigated the population genetic structure of C. malaccensis distributed in China based on the partial regions of mitochondrial COI and 12S rRNA genes. We collected 256 individuals of C. malaccensis from stored grain in 34 sites of China. We detected 50 COI gene haplotypes and nine 12S rRNA gene haplotypes. There were three clades in the haplotype network and Bayesian and maximum parsimony phylogenetic trees based on COI sequences, and two based on 12S rRNA sequences. The clustering of haplotypes was not correlated with their geographical distributions. The analysis of molecular variance, AMOVA, indicated that the genetic differentiation between populations was relatively weak. The major genetic differentiation was found within populations. We suggest that the genetic structure of C. malaccensis observed in this study may be the result of long-term climate fluctuations and recent human disturbances.KeywordsCheyletus malaccensisPopulation genetic structureMigration abilityCOI12S rRNAChina