Geographical Population Genetic Differentiation Analysis of <i>Eotetranychus sexmaculatus</i> in Rubber Tree Based on Mitochondrial <i>COI</i> Gene Sequences
Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (4): 773-778.DOI: 10.3969/j.issn.1000-2561.2020.04.019

• Crop Pests, Diseases and Their Control, Environmental Protection • Previous Articles     Next Articles

Geographical Population Genetic Differentiation Analysis of Eotetranychus sexmaculatus in Rubber Tree Based on Mitochondrial COI Gene Sequences

NIE Yue1,2,3,LU Tangfei1,2,3,CHEN Junyu2,3,ZHANG Fangping2,3,NIU Liming2,3,FU Yueguan2,3,*()   

  1. 1. College of Plant Protection, Hainan University, Haikou, Hainan 570228, China
    2. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
    3. Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, Hainan 571101, China
  • Received:2019-08-01 Revised:2019-08-22 Online:2020-04-25 Published:2020-05-09
  • Contact: FU Yueguan

Abstract:

Eotetranychus sexmaculatus (Riley) is one of the most important pests of rubber trees, with a wide geographical distribution and heavy infestation. In order to study its genetic diversity and genetic differentiation, the mitochondrial COI gene sequence was used to analyze the genetic structure of 165 individuals from 11 different geographical populations collected from rubber trees in Hainan, Yunnan and Hanoi (Vietnam). The obtained mitochondrial COI gene fragment of the six-pointed spider mites was 658 bp in length. There were 30 variable sites, including 15 simple information points, 15 single mutation sites, and 15 haplotypes. The FST value between populations was 0.34698, the Nm value was 0.47, and the GST value was 0.19660, indicating that there was genetic differentiation in the 11 populations of E. sexmaculatus (Riley).

Key words: Eotetranychus sexmaculatus (Riley), COI, geographic population, genetic differentiation

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