|
|||||
|
|
The rate of mitochondrial 12S rRNA gene evolution is similar in freshwater turtles and marsupials |
|
| Authors: | Jennifer M Seddon Peter R Baverstock Arthur Georges |
| Institution: | (1) Centre for Animal Conservation Genetics, School of Resource Science and Management, Southern Cross University, PO Box 157, Lismore NSW 2480, Australia, AU;(2) Graduate Research College, Southern Cross University, P.O. Box 157, Lismore, NSW 2480, Australia, AU;(3) Applied Ecology Research Group and CRC for Freshwater Ecology, University of Canberra, P.O. Box 1, Belconnen, ACT 2616, Australia, AU |
| Abstract: | Assertions that the ``conventional' rate of mitochondrial DNA (mtDNA) evolution is reduced in poikilotherms in general and turtles in particular were tested for side-necked turtles (Pleurodira: Chelidae). Homologous data sets of mitochondrial 12S rRNA gene sequences were used to compare the average divergence between the Australian and South American species for two Gondwanan groups: the chelid turtles and the marsupials. The mean nucleotide divergences between continental groups for both the turtles and the marsupials are remarkably similar. These data suggest that the rate of evolution of mitochondrial 12S rRNA gene is not substantially slower in turtles than in the homeothermic marsupials. Received: 24 February 1997 / Accepted: 30 June 1997 |
| Keywords: | : Rate — Molecular — Evolution — Chelid — Turtles — Marsupials |
| 本文献已被 SpringerLink 等数据库收录！ | |