Publications by authors named "Vincent Rousset"
Article Synopsis
- Terebelliformia, commonly known as "spaghetti worms," are diverse marine annelids, but their evolutionary relationships are unclear due to taxonomic ambiguities.
- This study analyzed the genetic data of 20 terebelliform species to create a comprehensive phylogeny based on over 12,000 genes and complemented it with additional morphological data from 121 species.
- Results confirmed the monophyly of six main taxa, redefined some classifications, and highlighted the evolutionary changes in their structures, challenging previous assumptions about their ancestral forms.
We present parsimony analyses of annelids based on the largest taxon sample and most extensive molecular data set yet assembled, with two nuclear ribosomal genes (18S rDNA and the D1 region of 28S rDNA), one nuclear protein coding-gene (Histone H3) and one mitochondrial ribosomal gene (16S rDNA) from 217 terminal taxa. Of these, 267 sequences are newly sequenced, and the remaining were obtained from GenBank. The included taxa are based on the criteria that the taxon must have 18S rDNA or at least two other loci.
View Article and Find Full Text PDFWe assess the phylogenetic position of Siboglinidae (previously known as the phyla Pogonophora and Vestimentifera, but now referred to Annelida) in parsimony analyses of 1100 bp from 18S rRNA, 320 bp from the D1 region of 28S rRNA, and 107 morphological characters, totaling 667 parsimony informative characters. The 34 terminal taxa, apart from six siboglinids, include polychaete members of Sabellida, Terbelliformia, Cirratuliformia and Spionida, plus two Aciculata polychaetes as outgroups. Our results contradict most recent hypotheses in showing a sistergroup relationship between Siboglinidae and Oweniidae, and in that the latter taxon is not a member of Sabellida.
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