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 Ahyong, S.T. and D. O’Meally (2004) Phylogeny of the Decapoda Reptantia: resolution using three molecular loci and morphology. The Raffles Bulletin of Zoology 52(2): 673–693. URL: http://rmbr.nus.edu.sg/rbz/biblio/52/52rbz673-693.pdf PDF is 263kB


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PDF contributorGalatheid Workshop 2007 (Gary Poore)
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2007-08-06 Regina Wetzer replace “marker” with “loci”
2007-06-26 Regina Wetzer add abstract

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Reference ID 10382
Reference type journalarticle
Authors Ahyong, S.T.
O’Meally, D.
Publication Year (for display) 2004
Publication Year (for sorting) 2004
Title Phylogeny of the Decapoda Reptantia: resolution using three molecular loci and morphology
Secondary Title The Raffles Bulletin of Zoology
Secondary Authors  
Tertiary Title  
Tertiary Authors  
Volume 52
Issue 2
Pages 673–693
Place published  
URL http://rmbr.nus.edu.sg/rbz/biblio/52/52rbz673-693.pdf
The controversial interrelationships of the major clades of the reptant decapods are resolved by simultaneous analysis of 16S, 18S, and 28S rRNA sequences in combination with morphology. All major reptant clades are represented including the first molecular data for the controversial Polychelidae, Glypheidae, and Enoplometopidae. Interrelationships of major clades in the shortest morphological cladograms were identical to those based on the molecular partition, and were congruent with those of the optimal combined analyses. The optimal tree, namely, that exhibiting minimal overall incongruence between morphological and molecular partitions was achieved under equal transition: transversion weights. Palinura, as traditionally recognised, is polyphyletic corroborating several recent studies. Infraordinal relationships are robust and insensitive to transition weight variation. For clades previously comprising the Palinura, we recognise Achelata, Polychelida and Glypheidea. Polychelida is sister to the remaining Repantia. Achelata is near basal and sister to Fractosternalia. Contrary to many previous studies, glypheideans are neither basal reptants, nor are they related to Thalassinidea, Brachyura or Anomura. Glypheidea is sister to Astacidea. A monophyletic Astacidea, comprising the freshwater crayfish (Astacida) and marine clawed lobsters (Homarida), corroborates most previous studies. The enigmatic lobster Enoplometopus (Enoplometopoidea) is confirmed as an astacidean rather than a possible thalassinidean. Unusual characters of the extinct uncinid lobsters, shared with enoplometopids, suggest close affinity, extending the fossil record of the Enoplometopoidea to the Lower Jurassic. The Sterropoda concept, comprising (Thalassinidea (Achelata + Meiura)) is not recognised. The clade formed by Brachyura, Anomura, and Thalassinidea is united by carapace lineae, for which we propose the new name Lineata. Internal relationships of Anomura recovered in our analyses suggest possible paraphyly of Galatheoidea and Paguroidea. Relationships within Brachyura indicate podotreme paraphyly, but greater taxonomic sampling is required to adequately test the status of Podotremata. The anomuran dromiid hypothesis is unsupported. Seven reptantian infraorders are recognised: Polychelida, Achelata, Glypheidea, Astacidea, Thalassinidea, Anomura and Brachyura. KEY WORDS. – Decapoda, Reptantia, phylogeny, molecular, morphology, Lineata new clade.
Keywords thalassinidea phylogeny
Reference Contributor Tag galatheid
Last Changed Wed Dec 5 10:57:37 2012

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