Chaetognath transcriptome reveals ancestral and unique features among bilaterians.

ABSTRACT:

Background

The chaetognaths (arrow worms) have puzzled zoologists for years because of their astonishing morphological and developmental characteristics. Despite their deuterostome-like development, phylogenomic studies recently positioned the chaetognath phylum in protostomes, most likely in an early branching. This key phylogenetic position and the peculiar characteristics of chaetognaths prompted further investigation of their genomic features.

Results

Transcriptomic and genomic data were collected from the chaetognath Spadella cephaloptera through the sequencing of expressed sequence tags and genomic bacterial artificial chromosome clones. Transcript comparisons at various taxonomic scales emphasized the conservation of a core gene set and phylogenomic analysis confirmed

SUBMITTER: Marletaz F 

PROVIDER: S-EPMC2481426 | biostudies-literature | 2008

REPOSITORIES: biostudies-literature