Notes on a discrepancy in mitochondrial DNA and allozyme differentiation in a pond frog Rana nigromaculata.
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.
Kim
Jong-Bum
JB
Graduate School of Human and Environmental Studies, Kyoto University, Japan. jbumkim33@hotmail.com
Matsui
Masafumi
M
Lee
Jung-Eun
JE
Min
Mi-Sook
MS
Suh
Jae-Hwa
JH
Yang
Suh-Yung
SY
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
D017931:DNA Primers; D007527:Isoenzymes; D045303:Cytochromes b