Linked Life Data

17303545

Source:http://linkedlifedata.com/resource/pubmed/id/17303545

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-2-16
pubmed:abstractText
More than 80% of the approximately 3000 living species of snakes are placed in the taxon Caenophidia (advanced snakes), a group that includes the families Acrochordidae, Viperidae, Elapidae, Atractaspididae, and the paraphyletic 'Colubridae'. Previous studies using DNA sequences have involved few nuclear genes (one or two). Several nodes have therefore proven difficult to resolve with statistical significance. Here, we investigated the higher-level relationships of caenophidian snakes with seven nuclear protein-coding genes and obtained a well-supported topology. Accordingly, some adjustments to the current classification of Caenophidia are made to better reflect the relationships of the groups. The phylogeny also indicates that, ancestrally, caenophidian snakes are Asian and nocturnal in origin, although living species occur on nearly all continents and are ecologically diverse.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1631-0691
pubmed:author
pubmed:issnType
Print
pubmed:volume
330
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
182-7
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
The phylogeny and classification of caenophidian snakes inferred from seven nuclear protein-coding genes.
pubmed:affiliation
Department of Biology and NASA Astrobiology Institute, 208 Mueller Lab, Pennsylvania State University, University Park, PA 16802-5301, USA. nvidal@mnhn.fr
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't