Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (7): 1672-1679.DOI: 10.3969/j.issn.1004-1524.20220808

• Plant Protection • Previous Articles     Next Articles

Difference analysis of main cuticular hydrocarbons of red imported fire ant (Solenopsis invicta Buren) from different geographical populations in Zhejiang Province, China

LIU Yueze1,2(), HUANG Jun2,*(), ZHANG Juan3, LI Xiaowei2, ZHANG Jinming2, ZHANG Zhijun2, LYU Yaobin1,2,*()   

  1. 1. College of Life Sciences, China Jiliang University, Hangzhou 310018, China
    2. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    3. Zhejiang Institute of Landscape Plants and Flowers, Hangzhou 311122, China
  • Received:2022-06-01 Online:2023-07-25 Published:2023-08-17
  • Contact: HUANG Jun,LYU Yaobin

Abstract:

Red imported fire ant (Solenopsis invicta Buren) is an eusocial insect, and is one of the 100 most dangerous invasive pests in the world. Cuticular hydrocarbons (CHCs) are important signal substances for nestmate recognition of S. invicta and play an important role in population stability. Recently, the differences of main CHCs of S. invicta among related species, different insect stages and various castes have been compared, but the differences of CHCs components and their relative proportions in different geographical populations and different body parts of S. invicta have been rarely reported. Here, the CHCs of 3 different geographical populations (Wenzhou, Lishui and Yiwu) of S. invicta were comparatively analyzed by gas chromatography-mass spectrometry (GC-MS). Further analysis of the relative proportion of the main components of CHCs showed that this value was relatively regular in the head of S. invicta. 3-methyl heptadecane and 3,9-dimethyl heptadecane in the 5 main CHCs fluctuated among different geographical populations, while n-heptadecane, 13-methyl heptadecane and 13,15-dimethyl heptadecane were relatively stable between Wenzhou and Lishui populations. This study can provide important reference for revealing the regulation mechanism of genetic and environmental factors on CHCs components of red imported fire ants.

Key words: Solenopsis invicta, geographical population, cuticular hydrocarbons, nestmate recognition

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