Molecular phylogeny of tubificid oligochaetes with special emphasis on Tubifex tubifex (Tubificidae)

Molecular Phylogenetics and Evolution
K A BeauchampR P Hedrick

Abstract

Tubifex tubifex is a cosmopolitan freshwater oligochaete whose presence has been studied as a health indicator of the aquatic environment and as a host for several myxozoan parasites of fish. Unfortunately, current morphological criteria used to distinguish Tubifex spp. (Tubificidae) are inadequate. We therefore developed mitochondrial 16S ribosomal DNA markers to examine phylogenetic relationships among aquatic oligochaetes and to distinguish species of Tubifex that might serve as hosts for a particular myxozoan parasite, Myxobolus cerebralis. Our phylogenetic analyses of oligochaetes based on a 378-bp segment yielded one most parsimonious tree with three major groups that corresponded to the families Lumbricidae, Sparganophilidae, and Tubificidae. T. tubifex and T. ignotus formed a monophyletic assemblage, and a sister relationship between the genera Tubifex and Limnodrilus was strongly supported. A second analysis of the relationship within the genus Tubifex identified six genetically distinct lineages of T. tubifex from North America and Europe that were separated by genetic distances comparable to those found for "well-defined" species of Limnodrilus. Therefore, the existence of several morphologically indistinguishable, t...Continue Reading

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Citations

Jul 18, 2001·The Journal of Eukaryotic Microbiology·M L KentC Xiao
Jan 15, 2009·Molecular Phylogenetics and Evolution·Daniel R GustafssonChrister Erséus
May 23, 2015·Diseases of Aquatic Organisms·Subhodeep SarkerMansour El-Matbouli
Apr 10, 2015·PloS One·Régis VivienJan Pawlowski
Mar 17, 2004·Molecular Phylogenetics and Evolution·Alexandra E Bely, Gregory A Wray
Jun 3, 2017·PloS One·Subhodeep SarkerMansour El-Matbouli
Aug 23, 2018·Journal of Aquatic Animal Health·R Barry NehringBenjamin Felt
Mar 28, 2003·The Journal of Parasitology·Jill M Lowers, Jerri L Bartholomew
Oct 10, 2003·The Journal of Parasitology·Michael A Gilbert, Willard O Granath
Mar 5, 2008·The Journal of Parasitology·E Leyla ArsanJerri L Bartholomew
Oct 24, 2008·Journal of Aquatic Animal Health·E Leyla Arsan, Jerri L Bartholomew
Jun 28, 2011·Journal of Aquatic Animal Health·Christopher M ZielinskiJerri L Bartholomew
Jan 22, 2005·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Laura Baldo, Marco Ferraguti

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