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A molecular evolutionary framework for the phylum Nematoda
Nematodes are important: parasitic nematodes threaten the health of plants, animals and humans on a global scale,; interstitial nematodes pervade sediment and soil ecosystems in overwhelming numbers;Expand
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Evidence for a clade of nematodes, arthropods and other moulting animals
The arthropods constitute the most diverse animal group, but, despite their rich fossil record and a century of study, their phylogenetic relationships remain unclear1. Taxa previously proposed to beExpand
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Ecdysozoan phylogeny and Bayesian inference: first use of nearly complete 28S and 18S rRNA gene sequences to classify the arthropods and their kin.
Relationships among the ecdysozoans, or molting animals, have been difficult to resolve. Here, we use nearly complete 28S+18S ribosomal RNA gene sequences to estimate the relations of 35 ecdysozoanExpand
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Evolution of the chordate body plan: new insights from phylogenetic analyses of deuterostome phyla.
The deuterostome phyla include Echinodermata, Hemichordata, and Chordata. Chordata is composed of three subphyla, Vertebrata, Cephalochordata (Branchiostoma), and Urochordata (Tunicata). CarefulExpand
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The position of the Arthropoda in the phylogenetic system
Traditionally, Panarthropoda (Euarthropoda, Onychophora, Tardigrada) are regarded as being closely related to Annelida in a taxon Articulata, but this is not supported by molecular analyses.Expand
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Urochordates are monophyletic within the deuterostomes.
Understanding the phylogenetic relationships of the three major urochordate groups within the deuterostomes is central to understanding the evolution of the chordates. We have prepared a detailedExpand
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Phylogenetic relationships of the Acanthocephala inferred from 18S ribosomal DNA sequences.
Phylogenetic relationships within the Acanthocephala have remained unresolved. Past systematic efforts have focused on creating classifications with little consideration of phylogenetic methods. TheExpand
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The evolution of bacterial LuxI and LuxR quorum sensing regulators.
Quorum sensing is a widespread form of bacterial communication in which individual cells produce and respond to specific N-acyl homoserine lactone signal metabolites. The different autoinducerExpand
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18S rRNA suggests that Entoprocta are protostomes, unrelated to Ectoprocta
The Ento- and Ectoprocta are sometimes placed together in the Bryozoa, which have variously been regarded as proto- or deuterostomes. However, Entoprocta have also been allied to theExpand
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18S rRNA data indicate that Aschelminthes are polyphyletic in origin and consist of at least three distinct clades.
The Aschelminthes is a collection of at least eight animal phyla, historically grouped together because the absence of a true body cavity was perceived as a pseudocoelom. Analyses of 18S rRNAExpand
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