rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Phylogenetic relationships among snakes inferred from mitochondrial DNA sequence data
  name:
    name part: Forstner, Michael R. J.
    name part: 1965-
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: xx
    date issued: 1995
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xii, 210 leaves : illustrations ; 28 cm.
  abstract: The determination of the historical relationships among snakes and between snakes and other squamates has remained problematical due to the combined problems of morphological character homoplasies and polarity misinterpretations coupled with the highly specialized body plan of the Serpentes. In order to provide an independent dataset and to escape the complex polarity and character choice problems inherent in a morphological investigation, 1,033 nucleotides of a mitochondrial DNA fragment encompassing both the ND4 protein-coding subunit and the His, Ser, and Leu tRNAs were sequenced and analyzed under parsimony criteria for a broad range of taxa from nearly all snake families using the outgroup method for correct character polarity. This investigation determined the origin of the snakes to be within the lizard clade and postulates an anguimorph lizard ancestry for the snakes. Subsequently, the relationships among the higher categories of snakes were evaluated and the results support both the conventional higher partitioning of the suborder Serpentes and a basal Scolecophidian clade, which had been previously supported by the morphological data. Examination of the Henophidia delineated two lineages, the Boidae and Pythonidae, which are monophyletic. The Pythonidae is expanded to include the Cylindrophinae, Loxoceminae, and Xenopeltinae and subsequent analyses provide support for an African and/or Asian origin of the Pythonidae. Historically problematical distributions for the boa genus Candoia and the python genus Loxocemus are paralleled in other lizard groups and do not represent a pattern from colonization events, but rather the relictual pattern derived from extinctions. The phylogenetic position of the enigmatic taxon Calabaria reinhardtii remains ambiguous from these data. This investigation, which represents one of the first systematic evaluations of snakes to utilize DNA sequence data, corroborates several features of the present morphologically deduced class…
  note: by Michael R. J. Forstner.
  note: Vita.
  note: "Major Subject: Genetics".
  note: Issued also on microfiche from University Microfilms Inc.
  note: Includes bibliographical references.
  note: Ph. D. Texas A&M University 1995.
  subject:
    topic: Major genetics
  identifier: 95-39204 UMI
  identifier: http://hdl.handle.net/1969.1/DISSERTATIONS-1561741
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://hdl.handle.net/1969.1/DISSERTATIONS-1561741
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  record info:
    record content source: TXA
    record creation date: 960715
    record change date: 20210803090618.0
    record identifier: in00001313348