Centre d'Ecologie fonctionnelle et évolutive UMR 5175 CEFE, Université Montpellier 3, Route de Mende, 34199 Montpellier Cedex 5, France.
Infect Genet Evol. 2011 Mar;11(2):334-42. doi: 10.1016/j.meegid.2010.11.001. Epub 2010 Nov 18.
Stomoxys calcitrans (Diptera: Muscidae: Stomoxyini), a synanthropic fly with a worldwide distribution, is recognized to have an important medical and veterinary impact. We conducted a phylogeographic analysis based on several populations from five major zoogeographic regions of the world in order to analyse population genetic structure of S. calcitrans and to trace its global dispersion. Results from mitochondrial (COI, Cyt-b and ND1-16S) and nuclear (ITS2) DNA show a substantial differentiation of Oriental populations (first lineage) from the Afrotropical, Palearctic, Nearctic, Neotropical and Oceanian populations (second lineage). The divergence time analyses suggest the separation between the two lineages approximately in mid-Pleistocene. Oriental populations are isolated and would not have participated in the colonization of other regions, unlike the Afrotropical one which seems to be the source of S. calcitrans dispersion towards other regions. Demographic analyses indicate that Oriental, Afrotropical and Palearctic regions have undergone a population expansion during late Pleistocene-early Holocene. The expansion time of this cosmopolitan species could have been influenced by continental human expansions and by animal domestication.
厩螫蝇（双翅目：蝇科：螫蝇属）是一种具有世界性分布的嗜人蝇种，被认为对医学和兽医学具有重要影响。我们基于来自世界五个主要动物地理区的几个种群进行了系统地理分析，以分析厩螫蝇的种群遗传结构并追踪其全球扩散。线粒体（COI、Cyt-b 和 ND1-16S）和核（ITS2）DNA 的结果表明，东方种群（第一谱系）与非洲热带、古北、新北、新热带和大洋洲种群（第二谱系）存在显著分化。分歧时间分析表明，这两个谱系大约在更新世中期分离。东方种群是孤立的，不会参与其他地区的殖民化，而非洲热带种群似乎是厩螫蝇向其他地区扩散的源头。人口动态分析表明，东方、非洲热带和古北地区在更新世晚期至全新世早期经历了种群扩张。这个世界性物种的扩张时间可能受到了大陆人类扩张和动物驯化的影响。
