Genetic structure, dispersal pathways, and northern expansion predictions of Solenopsis invicta: A two-decade journey through China's diverse landscapes
文献类型： 外文期刊
作者： Huang, Jun 1 ; Yu, Chen-Di 2 ; Wang, Shi-Zhen 3 ; Bao, Jian-Dong 1 ; Jiang, Zhi-Tao 4 ; Dong, Wan-Ying 1 ; Su, Hong-Li 5 ; Chen, Li-Ming 1 ; Ullah, Farman 1 ; Zhou, Shu-Xing 1 ; Li, Xiao-Wei 1 ; Zhang, Jin-Ming 1 ; Zhang, Zhi-Jun 1 ; Lu, Yao-Bin 1 ; Zhang, Juan 3 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Qual & Safety Agroprod, Hangzhou 310021, Peoples R China
2.Univ Queensland, Australian Infect Dis Res Ctr, Sch Chem & Mol Biosci, Brisbane, Qld, Australia
3.Zhejiang Acad Agr Sci, Inst Garden Plants & Flowers, Hangzhou, Peoples R China
4.Univ Calif Davis, Coll Biol Sci, Davis, CA USA
5.Zhejiang A&F Univ, Coll Forestry & Biotechnol, Hangzhou, Peoples R China
6.Xianghu Lab, Inst Biointeract, Hangzhou, Peoples R China
关键词：
biological invasion; genetic structure; genetic variation; local diffusion distance; red imported fire ant;
期刊名称：INSECT SCIENCE （ 影响因子：3.0； 五年影响因子：3.5 ）
ISSN： 1672-9609
年卷期： 2025 年
页码：
收录情况： SCI
摘要： The red imported fire ant, Solenopsis invicta, has invaded China for over two decades, advancing northwest from Guangdong to the Yangtze River coast at 30.8 degrees N latitude. A decade since the last genetic analysis, this study revisits the species' genetic structure and invasion trajectory amidst intensifying selective pressures. Through mitochondrial DNA resequencing of 96 samples across 6 Chinese provinces, we identified 2 haplotypes (H5 and H22), with H22 predominating in Zhejiang, the northern limit of our study. Phylogenetic analysis suggests a likely invasion source from Guangdong and Fujian, with long-distance dispersal facilitated by the horticultural trade, particularly Cycas revoluta. Local dispersal rates varied significantly, with 40 m/year in northern Zhejiang and 118-186 m/year in Guangdong. A regression model (y = -303.2523 + 10 855.1813/x) forecasts a northern expansion threshold near southern Shandong. However, considering the bridgehead effect, repeated invasions, and climate change, the species' invasive range may extend further north.
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Solenopsis invicta
