SHI, Wei; KERDELHUE, Carole; YE, Hui

doi:10.1007/s10709-009-9429-0

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SHI, Wei
Yunnan University

KERDELHUE, Carole
Biodiversité, Gènes & Communautés [BioGeCo]

YE, Hui
Yunnan University

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Genetica. 2010, vol. 138, n° 3, p. 377-385

Springer Verlag

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Bactrocera dorsalis (Diptera: Tephritidae) is an important pest for many tropical and subtropical fruits. The fly is probably introduced in Yunnan, a southwestern province of China that shares borders with Vietnam, Laos and Myanmar. Depending on local environmental conditions, this species occurs either only in the most favorable seasons or year-round. To infer the genetic diversity and structure of the fly in the region, and to understand the relationships between the flies of year-round and seasonal areas, we analyzed 304 individuals from 14 populations using the mitochondrial cytochrome oxidase I gene (COI). The sampled populations were structured into four groups, probably isolated by the main natural barriers in Yunnan such as mountain ranges and rivers. Our data suggest either that B. dorsalis in Yunnan originated from multiple introductions events, even if the source populations still need to be identified; or that Yunnan is a natural origin of this species (i.e., that it is not invasive there). Finally, we found some evidences that the seasonal populations were colonized from nearby year-round populations.< Leer menos

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MOUCHE DES FRUITS ORIENTALE

BACTROCERA DORSALIS

MTDNA

INSECTE

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PHYLOGEOGRAPHY

GENETIC STRUCTURE

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Population genetic structure of the oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) from Yunnan province (China) and nearby sites across the border

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