title: Notes on a discrepancy in mitochondrial DNA and allozyme differentiation in a pond frog Rana nigromaculata.
abstract: Analyses of complete 1143-base pair sequence of the mitochondrial cytochrome b gene demonstrated a sister relationship between Japanese R. nigromaculata and Korean R. plancyichosenica, but not with Korean R. nigromaculata, while the allozyme data strongly supported the monophyly of the Korean and Japanese populations of R. nigromaculata. We surmise this discordance to be the result of the inheritance of introduced mtDNA and the dilution of introduced nuclear DNA in mixed lineages after past hybridization and genome introgression between the two species, although the direction of introgression is unknown.
authors.affiliation: Graduate School of Human and Environmental Studies, Kyoto University, Japan. jbumkim33@hotmail.com
authors.forename: Jong-Bum
authors.initials: JB
authors.lastname: Kim
authors.forename: Masafumi
authors.initials: M
authors.lastname: Matsui
authors.forename: Jung-Eun
authors.initials: JE
authors.lastname: Lee
authors.forename: Mi-Sook
authors.initials: MS
authors.lastname: Min
authors.forename: Jae-Hwa
authors.initials: JH
authors.lastname: Suh
authors.forename: Suh-Yung
authors.initials: SY
authors.lastname: Yang
mesh_terms: D000818:Animals; D001483:Base Sequence; D016000:Cluster Analysis; D045303:Cytochromes b / Q000235:genetics*; D017931:DNA Primers; D005828:Genetics, Population; D006824:Hybridization, Genetic; D007527:Isoenzymes; D007564:Japan; D007723:Korea; D016013:Likelihood Functions; D008957:Models, Genetic; D008969:Molecular Sequence Data; D010802:Phylogeny; D011898:Ranidae / Q000235:genetics*; D017422:Sequence Analysis, DNA
chemical_list: D017931:DNA Primers; D007527:Isoenzymes; D045303:Cytochromes b