Zhou Hong-Xu, Zhang Rui-Ming, Tan Xiu-Mei, Tao Yun-Li, Wan Fang-Hao, Wu Qiang, Chu Dong
Key Lab of Integrated Crop Pest Management of Shandong Province, College of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China *These authors contributed equally to this work.
Key Lab of Integrated Crop Pest Management of Shandong Province, College of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
J Econ Entomol. 2015 Jun;108(3):1040-6. doi: 10.1093/jee/tov074. Epub 2015 Apr 15.
In China, the woolly apple aphid, Eriosoma lanigerum (Hausmann), was first detected as an invasive species during the 1910s to 1930s, restricted to Shandong, Liaoning, and Yunnan Provinces. However, since the 1990s, the pest has spread into many other areas of China. To determine the possible spread routes of the recently established populations, the genetic diversity and genetic structure of 24 populations in 10 provinces were analyzed using eight microsatellite loci. Analyses using STRUCTURE software identified two genetic clusters overall. Three populations from Yunnan and Xinjiang consisted of individuals originating from a single cluster. Nineteen populations from eight northern provinces consisted only of individuals from another cluster, which formed a single large and panmictic population, resembling a distinct "supercolony" in Northern China. The other two populations from Yunnan consisted of individuals from both clusters. The possible routes of spread of the recently established populations of E. lanigerum in China were revealed as follows: 1) the populations in Northern China (including these from Henan, Hebei, Shanxi, Shannxi, Jiangsu, and Gansu) may have been introduced from Shandong or Liaoning Provinces; 2) the populations in Yunnan consisted of an early-established population and a population introduced secondarily from Shandong or neighboring areas, indicating that the population in Yunnan has at least two sources; and 3) the recently established populations of E. lanigerum in Xinjiang might not have been introduced from the "supercolony" in Northern China. Knowledge of these routes of spread is useful for avoiding further dissemination and/or additional introductions.
在中国，苹果绵蚜（Eriosoma lanigerum (Hausmann)）于20世纪10年代至30年代首次被发现为入侵物种，当时仅分布于山东、辽宁和云南省。然而，自20世纪90年代以来，这种害虫已扩散到中国许多其他地区。为了确定新建立种群可能的传播途径，利用8个微卫星位点分析了10个省份24个种群的遗传多样性和遗传结构。使用STRUCTURE软件进行的分析总共识别出两个遗传簇。来自云南和新疆的3个种群仅由来自单个簇的个体组成。来自北方8个省份的19个种群仅由来自另一个簇的个体组成，形成了一个单一的大种群且随机交配，类似于中国北方一个独特的“超级群体”。来自云南的另外两个种群由来自两个簇的个体组成。苹果绵蚜在中国新建立种群的可能传播途径如下：1）中国北方的种群（包括来自河南、河北、山西、陕西、江苏和甘肃的种群）可能是从山东或辽宁省引入的；2）云南的种群由一个早期建立的种群和一个从山东或邻近地区二次引入的种群组成，这表明云南的种群至少有两个来源；3）新疆新建立的苹果绵蚜种群可能不是从中国北方的“超级群体”引入的。了解这些传播途径有助于避免其进一步扩散和/或额外引入。
