Phylogenetic analysis of cryptic speciation in the polychaete Pygospio elegans.

ABSTRACT: Development in marine invertebrate species can take place through a variety of modes and larval forms, but within a species, developmental mode is typically uniform. Poecilogony refers to the presence of more than one mode of development within a single species. True poecilogony is rare, however, and in some cases, apparent poecilogony is actually the result of variation in development mode among recently diverged cryptic species. We used a phylogenetic approach to examine whether poecilogony in the marine polychaete worm, Pygospio elegans, is the result of cryptic speciation. Populations of worms identified as P. elegansooded, and intermediate larvae; these modes are found both within and among populations. We examined sequence variation among partial mitochondrial cytochrome c oxidase su

SUBMITTER: Kesaniemi JE 

PROVIDER: S-EPMC3399165 | biostudies-literature | 2012 May

REPOSITORIES: biostudies-literature