数字农科院2.0

Genetic Diversity and Endosymbiont Infection Patterns of the Greenhouse Whitefly, Trialeurodes vaporariorum, in China

文献类型： 外文期刊

作者： Xue, Yantao;Wang, Weifeng;Lu, Yanhui;Chen, Jiqiang;Zhang, Guifen;Liu, Wanxue;Wan, Fanghao;He, Zhuyong;Zhang, Yibo

作者机构：

关键词： Trialeurodes vaporariorum;greenhouse whitefly;population genetics;mitochondrial COI;endosymbiont;biological invasion;Edited by Alberto Soares Corr & ecirc;a

期刊名称： NEOTROPICAL ENTOMOLOGY

ISSN： 1519-566X

年卷期： 2026 年 55 卷 1 期

页码：

收录情况： SCIE（2025版）

摘要： The greenhouse whitefly, Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae), is a globally invasive pest that affects both horticultural and agricultural systems, causing substantial economic losses. However, comprehensive studies on its invasion genetics and associated symbiotic landscape in China are lacking. In this study, we analyzed the genetic diversity based on the mitochondrial cytochrome c oxidase subunit I (COI) gene and examined the infection patterns of six key secondary endosymbionts in 1702 individuals from 73 populations across 18 provinces in China. Phylogenetic analysis incorporating global sequences revealed that Chinese populations are comprised of ten haplotypes. Genetic diversity was extremely low, with haplotype H1 being overwhelmingly dominant (97.60% of individuals) and shared with global invasive lineages. Endosymbiont screening showed a high prevalence of Arsenophonus (78.56%) and Hamiltonella (44.98%), with frequent co-infections. These results suggest that the widespread invasion of T. vaporariorum in China likely originated from a limited number of founder individuals, resulting in a significant genetic bottleneck. The invasion success appears to be associated with a genotype-symbiotype complex-the dominant H1 maternal lineage combined with a beneficial symbiotic toolkit. These findings provide insights into the invasion dynamics of this pest and implications for targeted control strategies.

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