AW: Moa-Tinamou Clade Found Within Ratites

[evelyn sobielski <koreke77@yahoo.de>]

Did anyone count how often paleognath phylogeny was "resolved" yet?

And do Baker et al (2014) address the concerns of Smith et al (2013) 
http://people.biology.ufl.edu/rkimball/publications_files/Smithetal.2013.SystBio.pdf,
 Kimball et al (2013?) 
http://people.biology.ufl.edu/rkimball/publications_files/Kimballetal.MPE.uncorrectedproofs.pdf
 and Yuri et al (2013) 
http://people.biology.ufl.edu/rkimball/publications_files/Yurietal.2013.Biology.pdf
 regarding the need to test any 

"new phylogenomic sequences from 1,448 nuclear DNA loci totalling almost one 
million base pairs"

(and RGCs just as well) on whether they actually retain phylogenetic signal?


An additional question: considering we have no problems getting the artificial 
(Paleognaths,(Passerines,other neognaths)) or 
(Paleognaths,(Galloanseres,(Passerines,other Neoaves))) quite robustly 
supported - how can we be sure (Ostrich,other paleognaths) is not artificial?


Regards,

Eike


--------------------------------------------
Ben Creisler <bcreisler@gmail.com> schrieb am Mi, 14.5.2014:

 Betreff: Moa-Tinamou Clade Found Within Ratites
 An: dinosaur@usc.edu
 Datum: Mittwoch, 14. Mai, 2014 04:24 Uhr
 
 From: Ben Creisler
 bcreisler@gmail.com
 
 Here's the citation and link for the new paper on ratite
 evolution:
 
 
 Allan J. Baker, Oliver Haddrath, John D. McPherson and
 Alison Cloutier (2014)
 Genomic Support for a Moa-Tinamou Clade and Adaptive
 Morphological
 Convergence in Flightless Ratites.
 Molecular Biology and Evolution (advance online
 publication)
 doi: 10.1093/molbev/msu153
 http://mbe.oxfordjournals.org/content/early/2014/05/09/molbev.msu153.abstract
 
 
 One of the most startling discoveries in avian molecular
 phylogenetics
 is that the volant tinamous are embedded in the flightless
 ratites,
 but this topology remains controversial because recent
 morphological
 phylogenies place tinamous as the closest relative of a
 monophyletic
 ratite clade. Here, we integrate new phylogenomic sequences
 from 1,448
 nuclear DNA loci totalling almost one million base pairs
 from the
 extinct little bush moa, Chilean tinamou and emu with
 available
 sequences from ostrich, elegant crested tinamou, four
 neognaths and
 the green anole. Phylogenetic analysis using standard
 homogeneous
 models and heterogeneous models robust to common topological
 artefacts
 recovered compelling support for ratite paraphyly with the
 little bush
 moa closest to tinamous within ratites. Ratite paraphyly was
 further
 corroborated by eight independent CR1 retroposon insertions.
 Analysis
 of morphological characters reinterpreted on a 27-gene
 paleognath
 topology indicates that many characters are convergent in
 the ratites,
 probably as the result of adaptation to a cursorial life
 style.