Genetic divergence in mitochondrial DNA between the Wood mouse (Apodemus sylvaticus) and the Yellow necked mouse (A. flavicollis)

摘要: Genetic variability and the relationships between clones of mitochondrial DNA (mtDNA) provide data which can be used to construct hypotheses about biogeographical postglacial colonization history Fennoscandian species. We have investigated fragment differences in mtDNA among 24 Wood mice (Apodemus sylvaticus) from 8 localities, an'd 9 Yellow necked (A. flavicollis) four North European localities. The greatest intraspecific sequence divergence found was 1.40% within A. sylvaticus 1.00 % flavicollis. The mean pairwise samples a local population (n = 14) only 0.003 %. Interspecific comparison flavicollis give close 10%: However, genetic distances based on two Apodemus species shows that they are more distantly related than suggested by nuclear distances. observed discrepancy estimated suggests predated genes or there an influx variation during speciation process connection with expansion contractions populations interglacial glacial periods.