Evolution through cold and deep waters: the molecular phylogeny of the Lithodidae (Crustacea: Decapoda)

Die Naturwissenschaften
Sally Hall, Sven Thatje

Abstract

The objectives of this work are to use gene sequence data to assess the hypothesis that the Lithodinae arose from ancestors with uncalcified abdomens in shallow waters of the North-East Pacific, investigate the monophyly and interrelationships of genera within the Lithodinae and to estimate the scale and minimum number of biogeographic transitions from the shallow environment to the deep sea and vice versa. To do this, phylogenetic analysis from three mitochondrial and three nuclear markers was conducted using minimum evolution, maximum likelihood and Bayesian methods. The Lithodinae as defined to include North Pacific genus Cryptolithodes may be paraphyletic, with the Hapalogastrinae and Cryptolithodes as sister taxa. This implies that the soft-bodied abdomen of the Hapalogastrinae might not be plesiomorphic for the Lithodidae. Paralomis, Lopholithodes, Phyllolithodes, Lithodes and Neolithodes share a common ancestor, from which the North Pacific Hapalogastrinae did not descend. Lithodid ancestors are likely to have had a north Pacific, shallow water distribution and to have had planktotrophic larvae. North Pacific genus Paralithodes is paraphyletic; P. brevipes is the most basal member of the genus (as sampled) while P. camts...Continue Reading

References

Dec 1, 1977·Proceedings of the National Academy of Sciences of the United States of America·F SangerA R Coulson
Feb 6, 1992·Nature·C W CunninghamL W Buss
Sep 20, 2002·BioTechniques·Sheng-Guo FangNoboru Fujihara
Nov 30, 2005·Microscopy Research and Technique·Nicolás Ubero-PascalMaría de Los Angeles Puig
Jun 22, 2013·BMC Evolutionary Biology·Heather D Bracken-GrissomKeith A Crandall
Sep 30, 2015·Proceedings of the National Academy of Sciences of the United States of America·Richard B AronsonSven Thatje

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Datasets Mentioned

BETA
AY596100.1
AB193824.1
AB193821.1
AF439385.1
AF425344-59
HM020882-5
HM020886-9

Methods Mentioned

BETA
PCR

Software Mentioned

MEGA3
BLASTN
PAUP *
PHYLIP DNAml
MEGA
Modeltest
jModeltest
Megablast
Mega3 1
hLRT

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