TY - JOUR T1 - Mitochondrial genome data support the basal position of Acoelomorpha and the polyphyly of the Platyhelminthes JF - Molecular Phylogenetics and Evolution Y1 - 2004 A1 - Ruiz-Trillo,I A1 - Riutort,M A1 - Fourcade,HM A1 - Baguna,J A1 - Boore,JL SP - 321 EP - 332 AB - We determined 9.7. 5.2. and 6.8kb, respectively, of the mitochondrial genomes of the acoel Paratomella rubra, the nemertodermatid Nemertoderma westbladi, and the free-living rhabditophoran platyhelminth Microstomum lineare. The identified gene arrangements are unique among metazoans, including each other, sharing no more than one or two single gene boundaries with a few distantly related taxa. Phylogenetic analysis of the amino acid sequences inferred from the sequenced genes confirms that the acoelomorph flatworms (acoels + nemertodermatids) do not belong to the Platyhelminthes, but are, instead, the most basal extant bilaterian group. Therefore, the Platyhelminthes, as traditionally constituted, is a polyphyletic phylum. (C) 2004 Elsevier Inc. All rights reserved. VL - 33 ER - TY - JOUR T1 - Acoel flatworms: earliest extant bilaterian metazoans, not members of Platyhelminthes. JF - Science Y1 - 1999 A1 - Ruiz-Trillo,I A1 - Riutort,M A1 - Littlewood,DTJ A1 - Herniou,EA A1 - Baguna,J SP - 1919 EP - 1923 KW - Paratomella rubra VL - 283 ER - TY - JOUR T1 - Mitochondrial genome data support the basal position of Acoelomorpha and the polyphyly of the Platyhelminthes. JF - Mol Phylog Evol Y1 - 2004 A1 - Ruiz-Trillo,I A1 - Riutort,M A1 - Fourcade,HM A1 - Baguna,J A1 - Boore,JL SP - 321 EP - 332 KW - Paratomella rubra VL - 33 ER -