Cui F, Qiao C-L, Shen B-C, Marquine M, Weill M, Raymond M
State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Graduate School, Chinese Academy of Sciences, Beijing 100080, China.
Bull Entomol Res. 2007 Jun;97(3):291-7. doi: 10.1017/S0007485307004968.
The population genetic structures of Culex pipiens Linnaeus were evaluated in China over a 2000 km transect that encompasses the two subspecies, C. p. pallens and C. p. quinquefasciatus. Four polymorphic allozyme loci were investigated in 1376 mosquitoes sampled from 20 populations across four provinces. These loci were not statistically dependent with no apparent heterozygote deficit or excess. On a regional scale (intra-province), a low (Fst=0.007-0.016) and significant genetic differentiation was found, with no clear geographical pattern. On a wider scale (inter-province), the genetic differentiation was higher (Fst=0.059), and an isolation by distance emerged. The results are compared with previous population genetic surveys of this mosquito species in different geographic areas over the world. The overall pattern suggests that Culex pipiens requires considerable distance (500-1000 km) to show isolation by distance, irrespective of the subspecies (C. p. pipiens, C. p. quinquefasciatus and C. p. pallens) or the geographic location.
在跨越2000公里的样带上对中国尖音库蚊的种群遗传结构进行了评估，该样带涵盖了两个亚种，即淡色库蚊和致倦库蚊。从四个省份的20个种群中采集了1376只蚊子，研究了四个多态性等位酶位点。这些位点不存在统计学上的相关性，也没有明显的杂合子亏缺或过剩。在区域尺度（省内）上，发现了低水平（Fst=0.007 - 0.016）且显著的遗传分化，没有明显的地理格局。在更广泛的尺度（省际）上，遗传分化更高（Fst=0.059），并且出现了距离隔离现象。将这些结果与之前在世界不同地理区域对该蚊种的种群遗传调查进行了比较。总体模式表明，无论亚种（尖音库蚊、致倦库蚊和淡色库蚊）或地理位置如何，尖音库蚊都需要相当的距离（500 - 1000公里）才能表现出距离隔离。
