Ii. Molecular Phylogenetic Approach to the Evolution of the Freshwater Eels, Anguilla

Abstract

The phylogeny of 12 Anguilla spp. collected from various areas of the world was constructed from mitochondrial cytochrome b sequences. Considering paleogeography and global paleocirculation, a hypothesis on the evolutionary process of freshwater eels is also presented. The phylogenetic tree obtained by neighbor-joining analysis placing A.celebesensis as an out-group suggests that A.mossambica, A.australis australis, A.rostrata and A.anguilla form a clade; A.japonica is placed in another alade. Most of the speciation in the lineage occurred mainly in the Eocene (57-36 million years ago); however, the separation of two Atlantic species, A.anguilla and A.rostrata, is estimated to have occurred much later, approximately 10 million years ago. The hypothetical evolutionary process of eels is as follows: in the Eocene, the ancestor of eels originated from the western Pacific

Cite this paper

@inproceedings{Ueda2017IiMP, title={Ii. Molecular Phylogenetic Approach to the Evolution of the Freshwater Eels, Anguilla}, author={Hiroshi Ueda and Howard A. Bern and Kiyoshi Orito and Hiroyuki Sakano and A . Akutsu - Sato and Koji Sato and Munetaka Shimizu}, year={2017} }