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

作     者：Yi Wu Bruce A.McPheron Jia-Jiao Wu Zhi-Hong Li 

作者机构：Department of EntomologyCollege of Agronomy and BiotechnologyChina Agricultural UniversityBeijingChina Department of EntomologyPenn State UniversityUniversity ParkPAUSA Guangdong Entry-Exit Inspection and Quarantine BureauGuangzhou Environment and Plant Protection InstituteChinese Academy of Tropical Agricultural SciencesHainanChina 

出 版 物：《Insect Science》 (昆虫科学（英文版）)

年 卷 期：2012年第19卷第2期

页      面：195-204页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 0904[农学-植物保护] 090401[农学-植物病理学] 090402[农学-农业昆虫与害虫防治] 071002[理学-动物学] 

基　　金：National Natural Science Foundation of China [30771432, 30971916] Ministry of Agriculture of the People's Republic of China [2009-Z41, 200903034] 

主　　题：Bactrocera cucurbitae mitochondrial haplotypes population expansion population structure 

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. cueurbitae has expanded from west to east within a limited geographic scale and recently invaded China through Yunnan Province.