We conducted molecular phylogenetic analyses of Japanese Rhacophorus species, especially of R. schlegelii and R. arboreus from the mainland, based on samples encompassing their known distribution ranges, and discussed...We conducted molecular phylogenetic analyses of Japanese Rhacophorus species, especially of R. schlegelii and R. arboreus from the mainland, based on samples encompassing their known distribution ranges, and discussed about evolutionary history of Rhacophorus species within Japan. The common ancestor of Japanese Rhacophorus, except for R. owstoni from southern Ryukyus, was estimated to have diverged from a lineage occurring mainly in China about 7 MYBP. Both R. schlegelii and R. arboreus are genetically largely divergent between regions of eastern and western Japan, and this seems to have been promoted mainly by retreat to refugia. Retreats of the two species to different refugia sometimes in the past seem to have led restricted distribution of R. schlegelii in eastern and R. arboreus in western Japan, and brought their intraspecific variation patterns in morphology and breeding habit.展开更多
DEAR EDITOR,Miralia alternans(Ruess,1833)is distributed in Borneo,Sumatra,and Java in Southeast Asia.The species is morphologically similar to Raclitia indica,a monotypic genus known from Peninsular Malaysia.Here,we c...DEAR EDITOR,Miralia alternans(Ruess,1833)is distributed in Borneo,Sumatra,and Java in Southeast Asia.The species is morphologically similar to Raclitia indica,a monotypic genus known from Peninsular Malaysia.Here,we collected a juvenile specimen of M.alternans from Borneo,and report on its coloration in life and first prey item recovered from the species.We also explored the phylogenetic position of the genus using molecular phylogenetic analysis of mitochondrial DNA(mtDNA)gene cytochrome b(cyt b)and nuclear gene prolactin receptor(PRLR),confirming M.alternans as sister to R.indica,with the two genera exhibiting relatively high genetic divergence in cyt b(13.0%-13.1%).展开更多
基金partly supported by Grants-in-Aid from the Monbukagakusho through the JSPS (Nos. 10041166, 20405013, and 23405014)a grant from The U. S. National Geographic Society (No. 4505-91) to MM
文摘We conducted molecular phylogenetic analyses of Japanese Rhacophorus species, especially of R. schlegelii and R. arboreus from the mainland, based on samples encompassing their known distribution ranges, and discussed about evolutionary history of Rhacophorus species within Japan. The common ancestor of Japanese Rhacophorus, except for R. owstoni from southern Ryukyus, was estimated to have diverged from a lineage occurring mainly in China about 7 MYBP. Both R. schlegelii and R. arboreus are genetically largely divergent between regions of eastern and western Japan, and this seems to have been promoted mainly by retreat to refugia. Retreats of the two species to different refugia sometimes in the past seem to have led restricted distribution of R. schlegelii in eastern and R. arboreus in western Japan, and brought their intraspecific variation patterns in morphology and breeding habit.
基金supported by the Shikata Memorial Trust for Nature Conservation to I.F.Asahi Glass Foundation to K.N.+2 种基金JSPS Core-to-Core Program Type B.Asia-Africa Science Platforms(Coordinator:M.Motokawa)JST/JICA,SATREPS to T.ItiokaThe field trip by M.M.and K.N.was made possible by a grant from the Monbusho through the Japanese Society for the Promotion of Science(JSPS,Field Research,No.20405013) to M.M.
文摘DEAR EDITOR,Miralia alternans(Ruess,1833)is distributed in Borneo,Sumatra,and Java in Southeast Asia.The species is morphologically similar to Raclitia indica,a monotypic genus known from Peninsular Malaysia.Here,we collected a juvenile specimen of M.alternans from Borneo,and report on its coloration in life and first prey item recovered from the species.We also explored the phylogenetic position of the genus using molecular phylogenetic analysis of mitochondrial DNA(mtDNA)gene cytochrome b(cyt b)and nuclear gene prolactin receptor(PRLR),confirming M.alternans as sister to R.indica,with the two genera exhibiting relatively high genetic divergence in cyt b(13.0%-13.1%).
