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Genetic relationship of the melon fly, Bactrocera cucurbitae (Diptera: Tephritidae) inferred from mitochondrial DNA

文献类型： 外文期刊

作者： Wu, Yi 1 ; McPheron, Bruce A. 2 ; Wu, Jia-Jiao 3 ; Li, Zhi-Hong 1 ;

作者机构： 1.China Agr Univ, Dept Entomol, Coll Agron & Biotechnol, Beijing 100193, Peoples R China

2.Penn State Univ, Dept Entomol, University Pk, PA 16802 USA

3.Guangdong Entry Exit Inspect & Quarantine Bur, Guangzhou, Guangdong, Peoples R China

4.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Hainan, Peoples R China

关键词： Bactrocera cucurbitae;mitochondrial haplotypes;population expansion;population structure

期刊名称：INSECT SCIENCE （ 影响因子：3.262； 五年影响因子：3.206 ）

ISSN： 1672-9609

年卷期： 2012 年 19 卷 2 期

页码：

收录情况： SCI

摘要： The melon fruit fly, Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae), has been the subject of worldwide quarantine and management efforts due to its widespread agricultural impact and potential for rapid range expansion. From its presumed native distribution in India, this species has spread throughout the hot-humid regions of the world. We provide information that reveals population structure, invasion history and population connectivity from 23 locations covering nine countries based on DNA sequences of the mitochondrial cytochrome oxidase I (COI) gene. Forty-two polymorphic sites were described among 38 haplotypes. The most common haplotype, H1, was observed in 73% of the samples distributed among all populations. Highest genetic diversity was seen within populations, and no isolation-by-distance was detected. The western regions (Nepal, Bangladesh, Thailand, Burma and China-west) showed higher haplotype diversity than eastern regions (China-east). China-Yunnan showed highest levels of genetic diversity in China. Haplotype diversity decreased with longitude from west to east. Together, these analyses suggest that B. cucurbitae has expanded from west to east within a limited geographic scale and recently invaded China through Yunnan Province.

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