is a broad category that includes animals ranging from the gigantic blue whale to the tiny arrow worm.
Evaluating hypotheses of deuterostome
phylogeny and Chordate Evolution with new LSU and SSU ribosomal DNA data.
The chordates (that include vertebrates), hemichordates (that include the living "acorn worms"), and echinoderms (that include the living starfish and echinoids) are all deuterostomes
and have the same pattern of early embryo development.
Most animal phyla belong to one of two groups of bilaterians: the protostomes or deuterostomes
Could it be that the ancestor of the deuterostomes
was a bottom-feeding dweller in the dark?
By comparing multiple alignments of the predicted amino acid sequence of BsGS with other deuterostome
GSs, we recognized the amino acids of the active sites ([Met.
phylogeny and the sister group of the chordates: evidence from molecules and morphology.
Gastrulation, in several deuterostome
taxa, has been studied in sufficient detail to provide a good example of the roles of ECM components in a fundamental developmental system.
Amongst basal Metazoa, including sponges (Porifera), corals, and sea anemones (Cnidaria), the origins of four major grades of aquaporins present in deuterostome
organisms have been resolved via Bayesian inference (Finn et al.
A recent extensive phylogenetic analysis of deuterostome
genomic data, however, revealed that the vertebrate superfamily contains 17 classes of aquaporins (Aqp0 - Aqpl6; Finn et al.
Classification and molecular phylogeny of deuterostome
AQPs were recently advanced by massive Bayesian analysis (Finn et al.
animals, are one of these groups.