Improved phylogenomic sampling of free-living nematodes enhances resolution of higher-level nematode phylogeny.

ABSTRACT:

Background

Nematodes are among the most diverse and abundant metazoans on Earth, but research on them has been biased toward parasitic taxa and model organisms. Free-living nematodes, particularly from the clades Enoplia and Dorylaimia, have been underrepresented in genome-scale phylogenetic analyses to date, leading to poor resolution of deep relationships within the phylum.

Results

We supplemented publicly available data by sequencing transcriptomes of nine free-living nematodes and two important outgroups and conducted a phylum-wide phylogenomic analysis including a total of 108 nematodes. Analysis of a dataset generated using a conservative orthology inference strategy resulted in a matrix with a high proportion of missing data and moderate to weak support for branching

SUBMITTER: Smythe AB 

PROVIDER: S-EPMC6567515 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature