作　　者： ; ; ; (沈伟江）;

机构地区： 扬州大学园艺与植物保护学院

出　　处： 《应用生态学报》 2014年第4期1137-1144,共8页

摘　　要： 烟粉虱是一种危害严重的世界性害虫,是一个快速进化的复合种.本文利用mtCOI分子标记方法,对2010和2011年采自我国9个省(市)的33个烟粉虱种群进行了生物型鉴定和系统发育分析.结果表明:我国目前存在着B型、Q型、ZHJ-1型、ZHJ-3型、An型以及Nauru型等6种生物型,且不同生物型的分布是不均匀的.遗传距离及系统发育树的分析结果显示,海南省的An型和台湾省的An型聚为一支,为同一来源;中国B型与来自法国和乌干达的B型的亲缘关系较近,同源性达到99%以上;中国的Q型与来自摩洛哥和法国的Q型聚为一个分支,而来自以色列和土耳其的Q型烟粉虱单独聚为一支,说明中国的Q型烟粉虱与来自地中海西部的Q型烟粉虱亲缘关系更近,可以推断中国的Q型烟粉虱的起源地为地中海西部地区. Bemisia tabaci （Genn.） （Hemiptera： Aleyrodidae） is considered taxonomically as a species complex and could cause serious damages to crops by directly feeding on phloem and/or in- directly transmission of plant viruses. In this geographic populations of B. tabaci collected study, biotypes and phylogenetic relationships of 33 from nine provinces of China in 2010 and 2011 were studied based on the mitocbondrial C01 gene. The results showed there were a total of six hiotypes of B. tabaci （ B, Q, ZHJ-1, ZHJ-3, An and Nauru） recovered in China and the geographical dis- tribution of these six biotypes was uneven. Phylogenetic analysis showed that biotype An B. tabaci from Taiwan clustered together with Hainan biotype An populations, indicating these two geographic populations might originate from a same ancestor. In addition, biotype B B. tabaci in China had a 99% genetical similarity compared to that from France and Uganda. However, relationships of bio- type Q on the phylogenetic tree were divided into two different clusters. One was occupied with the population from China and Western Mediterranean Sea countries （France and Morocco） and the other contained biotype Q populations from Eastern Mediterranean Sea countries （Israel and Tur- key）. Overall, the results suggested that biotype Q B. tabaci in China was genetically similar to that from Western Mediterranean Sea countries and Q B. tabaci originated from Western Mediterranean it could be highly possible that Chinese biotype Sea areas.

关 键 词： 烟粉虱 生物型 遗传距离 系统发育

领　　域： [生物学]