Schaffner F, Raymond M, Pasteur N
Institut des Sciences de l'Evolution, Génétique et Environnement, Université de Montpellier II, France.
Med Vet Entomol. 2000 Sep;14(3):264-71. doi: 10.1046/j.1365-2915.2000.00232.x.
An investigation of polymorphism of 11 autosomal and one sex-linked allozyme loci was made on 18 samples of Anopheles claviger Meigen (Diptera: Culicidae) from localities across France and neighbouring sites in Germany and Switzerland, plus one sample of Anopheles petragnani Del Vecchio from the French Pyrénées. Genetic differentiation between these two sibling species was confirmed (Nei genetic distance 0.33-0.44) and two genetically distinct groups of populations were identified within An. claviger. These two forms of An. claviger showed contiguous geographical distributions, Group I found across western and Central France, Group II in eastern France and nearby parts of Germany and Switzerland. The two groups were in contact in a region near the Rhone Valley where two intermediate samples were found. The taxonomic significance of this finding is discussed in the context of the recent climatic history of Europe and in relation to the vector potential of each member of the An. claviger complex.
对采自法国各地以及德国和瑞士邻近地区的18个克氏按蚊(双翅目:蚊科)样本,以及采自法国比利牛斯山脉的1个彼得按蚊样本,进行了11个常染色体和1个性连锁等位酶位点的多态性调查。证实了这两个近缘物种之间的遗传分化(内氏遗传距离0.33 - 0.44),并在克氏按蚊中鉴定出两个遗传上不同的种群组。克氏按蚊的这两种形式呈现出连续的地理分布,第一组分布在法国西部和中部,第二组分布在法国东部以及德国和瑞士的邻近地区。这两组在罗讷河谷附近的一个区域接触,在那里发现了两个中间样本。结合欧洲近期的气候历史以及克氏按蚊复合体每个成员的媒介潜能,讨论了这一发现的分类学意义。