A Molecular View of the Superfamily Dioctophymatoidea (Nematoda)

摘要

Monophyly of the superfamily Dioctophymatoidea was assessed based on analyses of DNA sequence variation among 3 of 4 constituent genera (5 species). Represented is the first molecular phylogenetic evaluation of the Dioctophymatoidea using maximum parsimony, maximum likelihood, and Bayesian inference of 18S nuclear DNA (786 base-pair [bp] segment) and mitochondrial cytochrome oxidase 1 (293 bp) genes. Dioctophymatoidea is monophyletic and includes a clade with Dioctophyme renale and Eustrongylides ignotus (Dioctophymatidae) as the sister of Soboliphyme baturini, Soboliphyme jamesoni, and Soboliphyme abei (Soboliphymatidae). Within Soboli-phymatidae, S. baturini is the sister of S. jamesoni and S. abei.