Schaffner Francis, Marquine Maïte, Pasteur Nicole, Raymond Michel
Entente Interdépartementale pour la Démoustication du Littoral Méditerranéen, 165 avenue Paul Rimbaud, 34184 Montpellier 4, France.
J Med Entomol. 2003 Nov;40(6):865-75. doi: 10.1603/0022-2585-40.6.865.
Two groups of Anopheles claviger sensu stricto Meigen (Diptera: Culicidae) were recently found in France, representing unclear genetic entities. To better understand this situation, sampling was extended to 13 European countries, and 47 samples were analyzed by investigating the polymorphism of 11 autosomal and 1 sex-linked allozyme loci. Genetic differentiation, as measured by F(st), between these two groups was confirmed, with no isolation by distance within each group. Among the twelve loci studied, none had diagnostic alleles. Group I is mainly located in western Europe (UK and south-west of France), and Group II covers eastern France and eastern and northern Europe. Intermediate populations, sampled at the overlapping range between them, do not display a heterozygote deficit, suggesting that these two groups are probably not genetically isolated. The origin of each group and its biological significance is discussed within the context of differentiation in refugia during recent glaciations.
最近在法国发现了两组严格意义上的棒形按蚊（双翅目：蚊科），其遗传实体尚不明确。为了更好地了解这种情况，抽样范围扩大到13个欧洲国家，并通过调查11个常染色体和1个性连锁等位酶基因座的多态性对47个样本进行了分析。通过F(st)测量的这两组之间的遗传分化得到了证实，每组内均不存在距离隔离。在所研究的12个基因座中，没有一个具有诊断性等位基因。第一组主要位于西欧（英国和法国西南部），第二组覆盖法国东部以及欧洲东部和北部。在两组重叠范围内采集的中间种群并未表现出杂合子缺失，这表明这两组可能在遗传上并未隔离。在近期冰川作用期间避难所分化的背景下，讨论了每组的起源及其生物学意义。
