Acta Entomologica Sinica (2007) 50, 1255-1262

Wei-Feng Li, Lang Yang, Kan Tang, Ling Zeng and Guang-Wen Liang (2007)
[Microsatellite polymorphism of Bactrocera dorsalis (Hendel) populations in China]
Acta Entomologica Sinica 50 (12), 1255-1262
Abstract: The genetic diversity of 11 Bactrocera dorsalis (Hendel) populations consisting of 224 individuals collected from 9 provinces of South China, Vietnam and Thailand was investigated using simple sequence repeat (SSR) markers to study the genetic differentiation among populations. Total 48 alleles at nine loci were amplified, with average of 5.33 alleles each locus. A relatively high level of genetic diversity was revealed: P=94.45%, Nei's=0.4371, I=0.7870. A higher level of genetic differentiation was detected among populations with Nei's F-statistics, F_st=0.2370. The differentiation in certain degree may result from geographical isolation and barriers to gene flow. UPGMA cluster analysis indicated that the 9 populations from China clustered in two clades, the Southern China clade and the South-western China clade. Populations from Fujian, Taiwan, Guangdong and Hainan gathered into the Southern China clade, while populations from Sichuan, Yunnan, Gaungxi, Guizhou and Hunan formed the South-western China clade. It was so inferred that the evolutionary processes of the populations of the Oriental fruit fly in China are influenced by two factors, i.e, geographical divergence and gene flow by trade communication.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)
Database assignments for author(s): Ling Zeng

Research topic(s) for pests/diseases/weeds:
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bactrocera dorsalis		China (south)
	Bactrocera dorsalis		Taiwan
	Bactrocera dorsalis		Thailand
	Bactrocera dorsalis		Vietnam