Department of Zoology, Charles University, Prague, Czech Republic.
Heredity (Edinb). 2012 Mar;108(3):248-55. doi: 10.1038/hdy.2011.67. Epub 2011 Aug 24.
We used the mitochondrial control region and nuclear microsatellites to assess the distribution patterns, population structure, demography and landscape genetics for the hedgehogs Erinaceus europaeus and Erinaceus roumanicus in a transect of the mid-European zone of sympatry. E. roumanicus was less frequent and restricted to regions with lower altitudes. Demographic analyses suggested recent population growth in this species. A comparison of patterns in the spatial variability of mitochondrial and nuclear DNA indicated less sex-biased dispersal and higher levels of gene flow in E. roumanicus. No evidence of recent hybridisation or introgression was detected. We interpreted these results by comparing with phylogeographic and palaeontological studies as well as with the occurrence of hybridisation in the Russian contact zone. We propose that Central Europe was colonised by E. roumanicus by the beginning of the Neolithic period and that there was a subsequent reinforcement stage as well as the formation of a zone of sympatry after the complete reproductive isolation of both species.
我们利用线粒体控制区和核微卫星来评估刺猬 Erinaceus europaeus 和 Erinaceus roumanicus 在中欧同域区的分布模式、种群结构、人口动态和景观遗传学。E. roumanicus 较少见，局限于海拔较低的地区。人口动态分析表明，该物种最近的种群增长。对线粒体和核 DNA 空间变异性模式的比较表明，E. roumanicus 的性别偏向扩散较少，基因流动水平较高。没有发现最近的杂交或基因渗入的证据。我们通过与系统地理学和古生物学研究以及俄罗斯接触区的杂交发生情况进行比较，对这些结果进行了解释。我们提出，中欧在新石器时代早期就被 E. roumanicus 殖民，随后有一个强化阶段，以及在两个物种完全生殖隔离后形成了一个同域区。
