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<p><i>Euseius nicholsi</i> (Acari: Phytoseiidae), has great potential for biological control applications owing to its broad distribution, capability of preying on detrimental mites amid surging challenges of pesticide resistance. In this study, genetic diversity and molecular phylogeography of <i>E. nicholsi</i> were investigated based on mitochondrial COI and 12&#xa0;S rRNA sequence data derived from 30 populations in China. 86 haplotypes of the COI gene and 37 haplotypes of the 12&#xa0;S rRNA gene were detected signifying its genetic diversity and great potential for bio-control programs. The results of Tajima’s D, Fu’Fs and mismatch distribution histogram showed that its population evolution followed a neutral evolutionary model. The analyses of spatial genetic structure manifested that the correlation between the geographic space distance and genetic distance of all geographic groups were not apparent. Additionally, it’s distribution in China can be divided into four biogeographical regions. To our knowledge, the current study constitutes the first research on molecular phylogeography of <i>E. nicholsi</i> with two mitochondrial gene-markers from 30 geographic populations, expanding its recording range, preliminarily analyzed the fauna of <i>E. nicholsi</i> and could help shed light on its conservation biology and practical utilizations in bio-control programs.</p>

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Phylogeography of the predatory mite Euseius nicholsi (Acari: Phytoseiidae) in China

  • 期刊论文

  • 发表日期：

    2025年10月30日

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  • Xi Wang,
  • Denglu Yang,
  • MoHao Xiong,
  • Yihui Wu,
  • Yu Zhang,
  • Bin Wan,
  • Zhenqi Gong,
  • Ling Zhong,
  • Bin Xia

摘要

Euseius nicholsi (Acari: Phytoseiidae), has great potential for biological control applications owing to its broad distribution, capability of preying on detrimental mites amid surging challenges of pesticide resistance. In this study, genetic diversity and molecular phylogeography of E. nicholsi were investigated based on mitochondrial COI and 12 S rRNA sequence data derived from 30 populations in China. 86 haplotypes of the COI gene and 37 haplotypes of the 12 S rRNA gene were detected signifying its genetic diversity and great potential for bio-control programs. The results of Tajima’s D, Fu’Fs and mismatch distribution histogram showed that its population evolution followed a neutral evolutionary model. The analyses of spatial genetic structure manifested that the correlation between the geographic space distance and genetic distance of all geographic groups were not apparent. Additionally, it’s distribution in China can be divided into four biogeographical regions. To our knowledge, the current study constitutes the first research on molecular phylogeography of E. nicholsi with two mitochondrial gene-markers from 30 geographic populations, expanding its recording range, preliminarily analyzed the fauna of E. nicholsi and could help shed light on its conservation biology and practical utilizations in bio-control programs.