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

第一作者： Huang, Jun

作者： Huang, Jun;Bao, Jian-Dong;Dong, Wan-Ying;Chen, Li-Ming;Ullah, Farman;Zhou, Shu-Xing;Li, Xiao-Wei;Zhang, Jin-Ming;Zhang, Zhi-Jun;Lu, Yao-Bin;Yu, Chen-Di;Wang, Shi-Zhen;Zhang, Juan;Jiang, Zhi-Tao;Su, Hong-Li;Lu, Yao-Bin

作者机构：

关键词： biological invasion; genetic structure; genetic variation; local diffusion distance; red imported fire ant; Solenopsis invicta

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.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序