Resolving the evolutionary relationships of molluscs with phylogenomic tools
Molluscs (snails, octopuses, clams and their relatives) have a great disparity of body plans and, among the animals, only arthropods surpass them in species number. This diversity has made Mollusca…
Phylogenomic analyses of deep gastropod relationships reject Orthogastropoda
This work re-evaluate gastropod phylogenetic relationships by collecting new transcriptome data for 40 species and analysing them in combination with publicly available genomes and transcriptomes, rejecting the prevalent hypothesis of gastropid phylogeny, Orthogastropoda.
New deep-sea species of Xenoturbella and the position of Xenacoelomorpha
- G. Rouse, N. Wilson, J. I. Carvajal, R. Vrijenhoek
- Biology, Environmental ScienceNature
- 4 February 2016
Four new Xenoturbella species from deep waters of the eastern Pacific Ocean are described and Phylogenomic analyses of transcriptomic sequences support placement of Xenacoelomorpha as sister to Nephrozoa or Protostomia.
Molecular phylogeny of extant Holothuroidea (Echinodermata).
Multiple lineages and absence of panmixia in the “circumpolar” crinoid Promachocrinus kerguelensis from the Atlantic sector of Antarctica
The finding of considerable genetic diversity within the Atlantic sector alone suggests that the recognized diversity of Antarctica’s benthic marine life may be underestimated, and will rise dramatically with phylogeographic analyses of putative widespread species.
Ocean barriers and glaciation: evidence for explosive radiation of mitochondrial lineages in the Antarctic sea slug Doris kerguelenensis (Mollusca, Nudibranchia)
The diverse lineages found in D. kerguelenensis point towards a recent, explosive radiation, likely reflecting multiple refuges during glaciation events, combined with limited subsequent dispersal, and supports the Antarctic biodiversity pump phenomenon.
Fixed, free, and fixed: the fickle phylogeny of extant Crinoidea (Echinodermata) and their Permian-Triassic origin.
Barcoding against a paradox? Combined molecular species delineations reveal multiple cryptic lineages in elusive meiofaunal sea slugs
This study confirms extensive, morphologically cryptic diversity among meiofauna and accentuates the taxonomic deficit that characterizes meofauna research.
Bye bye "Opisthobranchia"! A review on the contribution of mesopsammic sea slugs to euthyneuran systematics
The present study combines the published and unpublished topologies, and indicates that monophyletic Rhodopemorpha cluster outside of Euthyneura among shelled basal heterobranchs, acteonids are the sister to rissoellids, and Nudipleura are the basal offshoot of EUTHyneura.