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Molecular phylogeny of pontobdelline leeches and their place in the descent offish leeches (Hirudinea, Piscicolidae)Utevsky, Serge Y. ...Phylogeneric relationships of all genera of the fish leech subfamily Pontobdellinae were investigated using mitochondrial (12S rDNA, COI, tRNA-Leu,ND1) and nucear (28S rDNA) DNA sequences under ... maximum likelihood, Bayesian inference and parsimony. All methods resulted in trees that corroborated the monophyly of the family Piscicolidae, but recovered their subfamily Pontobdellinae as non-monophyletic. Based on the basal position of the Giant Antarctic Megaliolbdella szidati, it is hypothesized that the putative ancestor of fish leeches was a free-ranging, large bodied, muscular leech. The next branch contains parasites of cartilaginous fishes, Pontobdellamuricata and Pontobdellra macrothela. Two remaining genera of the subfamily (the Arctic Oxytonostoma and the Antarctic Moorebdellina) showed weak affinities to other piscicolid taxa. The obtained phylogenetic hypothesissuggests a possible transition from an ancestral free-ranging life style and temporary parasitism, to parasitism on cartilaninous fishes, followed by parasitism on bony fishes.Source: Zoologica scripta. - ISSN 0300-3256 (Letn. 36, št. 3, 2007, str. 271-280)Type of material - article, component partPublish date - 2007Language - englishCOBISS.SI-ID - 22583769
Author
Utevsky, Serge Y. |
Utevsky, Andrei Y. |
Schiaparelli, Stefano |
Trontelj, Peter
Topics
Phylogeny |
Leeches |
Classification |
Ecosystem |
Fishes |
Seawater |
Polymerase Chain Reaction |
Bayes Theorem |
Ekosistem |
Filogeneza |
Morska voda |
Pijavke |
Ribe |
Bayesov teorem |
Polimerazna, verižna reakcija |
Pontobdellinae
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Utevsky, Serge Y. | ![]() |
Utevsky, Andrei Y. | ![]() |
Schiaparelli, Stefano | ![]() |
Trontelj, Peter | 14835 |
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