Genetic Diversity and Population Structure of the Tea Lace Bug Stephanitis chinensis Drake, 1948 (Hemiptera: Tingidae) in Central China

文献类型： 外文期刊

第一作者： Liu, Hong-Ling

作者： Liu, Hong-Ling;Wu, Xing-Long;Pu, De-Qiang;Chen, Zhi-Teng

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关键词： Genetic diversity; molecular marker; pest management; population genetics; tea lace bug.

期刊名称：JOURNAL OF THE ENTOMOLOGICAL RESEARCH SOCIETY （ 影响因子：0.3； 五年影响因子：0.4 ）

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年卷期： 2024 年 26 卷 2 期

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收录情况： SCI

摘要： The tea lace bug, Stephanitis chinensis Drake, 1948, a notorious pest, inflicts significant damage on commercial tea cultivation and ornamental gardens across China. In this study, we investigated the genetic diversity, population structure, and demographic history of S. chinensis based on the genetic and phylogenetic analysis of mitochondrial cytochrome c oxidase I (cox1) sequences. The dataset exhibited 453 polymorphic sites, 315 parsimony informative sites, and 138 singleton variable sites, attesting to the species' genetic complexity. Haplotype diversity varied across populations, with the highest in Ziyang County of Shaanxi Province (SXZY) and lowest in Yongchuan District of Chongqing City (CQYC). Genetic differentiation was primarily within populations, while some pairs showed significant divergence, indicative of geographic barriers and local adaptation. Inconsistent signals from neutrality tests and mismatch distribution analysis suggested historical stability interspersed with growth or bottleneck events. Phylogenetic analysis depicted distinct haplotype clusters, with Mabian County of Sichuan province of Hunan Province (HNGW). These findings illuminate S. chinensis' ecological adaptability, historical dynamics, and potential for adaptive responses to agricultural practices. In addition, the results indicated species' evolutionary trajectory.

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