Basale Alethinophidia

[M.Dobiey]

Hallo,

Ich suche neuere Literatur zur Phylogenetik/Systematik der basalen Athinophidia(früher "Henophidia"). Kann mir einer sagen, ob es da papers als pdf irgendwo im Netz gibt?
Ansonsten wären auch noch Titel von Arbeiten interessant, die nicht bei EMBL aufgelistet sind, damit ich mich mal danach umschauen kann.
Speziell würde mich die Stellung von Ungaliophis/Exiliboa sowie Cylindrophis und co. interessieren.
Weitere Infos zu Anomochilus, Bolyeria und Casarea wären auch nicht schlecht.
Ich sag schonmal Danke.

Schöne Grüße,

Maik

[Wulf Schleip]

Re: Basale Alethinophidia

Hi Maik,

hast aber schwer zu tun, wenn Du Dich nun mit Superfamilien rumschlagen willst :-)

schau mal hier: http://www.kingsnake.com/aho/pdf/menu1/scanlon2003b.pdf

phylogeny of higher-level snakes...
http://evo.bio.psu.edu/hedgeslab/Publications/PDF-files/141.pdf

und ein Zitat:
Christopher M. R. Kelly , Nigel P. Barker, Martin H. Villet, 2003,
Phylogenetics of Advanced Snakes (Caenophidia) Based on Four Mitochondrial Genes, Systematic Biology Vol. 52 (4), pp. 439-459

Abstract:
Phylogenetic relationships among advanced snakes (Acrochordus + Colubroidea = Caenophidia) and the position of the genus Acrochordus relative to colubroid taxa are contentious. These concerns were investigated by phylogenetic analysis of fragments from four mitochondrial genes representing 62 caenophidian genera and 5 noncaenophidian taxa. Four methods of phylogeny reconstruction were applied: matrix representation with parsimony (MRP) supertree consensus, maximum parsimony, maximum likelihood, and Bayesian analysis. Because of incomplete sampling, extensive missing data were inherent in this study. Analyses of individual genes retrieved roughly the same clades, but branching order varied greatly between gene trees, and nodal support was poor. Trees generated from combined data sets using maximum parsimony, maximum likelihood, and Bayesian analysis had medium to low nodal support but were largely congruent with each other and with MRP supertrees. Conclusions about caenophidian relationships were based on these combined analyses. The Xenoderminae, Viperidae, Pareatinae, Psammophiinae, Pseudoxyrophiinae, Homalopsinae, Natricinae, Xenodontinae, and Colubrinae (redefined) emerged as monophyletic, whereas Lamprophiinae, Atractaspididae, and Elapidae were not in one or more topologies. A clade comprising Acrochordus and Xenoderminae branched closest to the root, and when Acrochordus was assessed in relation to a colubroid subsample and all five noncaenophidians, it remained associated with the Colubroidea. Thus, Acrochordus + Xenoderminae appears to be the sister group to the Colubroidea, and Xenoderminae should be excluded from Colubroidea. Within Colubroidea, Viperidae was the most basal clade. Other relationships appearing in all final topologies were (1) a clade comprising Psammophiinae, Lamprophiinae, Atractaspididae, Pseudoxyrophiinae, and Elapidae, within which the latter four taxa formed a subclade, and (2) a clade comprising Colubrinae, Natricinae, and Xenodontinae, within which the latter two taxa formed a subclade. Pareatinae and Homalopsinae were the most unstable clades.

Grüsse,
Wulf

[[ggg]Editiert von Wulf Schleip am 16-12-2004 um 13:16 GMT[/ggg]]