昆虫学报2012，Vol.55Issue(12)：1376-1385,10.
基于微卫星标记对中国Q型烟粉虱早期入侵种群与B型烟粉虱种群的遗传结构分析
Microsatellite analyses reveal the sources and genetic diversity of the first-introduced Q-biotype population and the well-established B-biotype populations of Bemisia tabaci in China
摘要
Abstract
The invasive Bemisia tabaci (Gennadius) (Hemiptera:Aleyrodidae) biotype Q (hereafter referred to as Q) was first detected in China in 2003,it gradually displaced the well-established biotype B (hereafter referred to as B) and has become the dominant whitefly in China by 2008.The goal of the current study was to provide insight into the rapid invasion of B.tabaci Q and the domination of B.tabaci Q over B in China.In this study we used 11 microsatellite loci to analyze and compare the genetic structure of one Q and 11 B introduced populations collected in China in 2003 with those of two native Q populations from Spain,one invasive Q population and one native B population from Israel,and five introduced B populations from Spain,the USA,and Australia.The results revealed that the first B.tabaci Q population in China was probably introduced from the western Mediterranean region rather than from the eastern Mediterranean region.The 11 B.tabaci B populations in China,however,might be the progeny of multiple primary introductions from the source region or represent secondary spread from an invaded region.Chinese B had greater genetic diversity than B from Spain,Australia,and the USA,suggesting that Chinese B might have more than one source.Both the first-introduced Chinese Q population and the well-established B populations have not experienced a substantial decrease in genetic diversity relative to their source populations,suggesting minimal bottleneck or founder effects.Genetic diversity for the invasive Q population was greater than the B populations in China,which might contribute to Q' s strong ecological adaptability to the new environments in the introduced regions and thus might explain why it has rapidly spread and displaced the well-established B populations in China.关键词
烟粉虱Q型/烟粉虱B型/微卫星标记/遗传多样性/入侵生物学Key words
Bemisia tabaci biotype Q/ Bemisia tabaci biotype B/ microsatellite marker/ genetic diversity / invasion biology分类
生物科学引用本文复制引用
褚栋,李显春,张友军..基于微卫星标记对中国Q型烟粉虱早期入侵种群与B型烟粉虱种群的遗传结构分析[J].昆虫学报,2012,55(12):1376-1385,10.基金项目
国家自然科学基金项目(31071747,31272105) （31071747,31272105）
青岛农业大学高层次人才基金(631212) （631212）
泰山学者建设工程专项经费 （）
