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Phylogenetic analyses of Polemoniaceae using nucleotide sequences of the plastid gene matK

Nucleotide sequences of the plastid encoded gene matK were examined for their potential utility in phylogenetic analyses within angiosperm families. Sequences 661 bases in length were obtained from twenty species of Polemoniaceae. Phylogenetic analyses resulted in four equally parsimonious trees wit... Full description

Journal Title: Systematic botany 1994-01, Vol.19 (1), p.126-142
Main Author: Steele, K.P
Other Authors: Vilgalys, R
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: Alma/SFX Local Collection
Publisher: Kent, OH: American Society of Plant Taxonomists
ID: ISSN: 0363-6445
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recordid: cdi_crossref_primary_10_2307_2419717
title: Phylogenetic analyses of Polemoniaceae using nucleotide sequences of the plastid gene matK
format: Article
creator:
  • Steele, K.P
  • Vilgalys, R
subjects:
  • Biological and medical sciences
  • Biological taxonomies
  • CODE GENETIQUE
  • CODIGO GENETICO
  • Codons
  • FILOGENIA
  • Fundamental and applied biological sciences. Psychology
  • GENE
  • Genera
  • GENES
  • Genetic variation
  • GENETICA
  • GENETIQUE
  • Nucleotide sequences
  • Parsimony
  • Phylogenetics
  • PHYLOGENIE
  • Plant cytology, morphology, systematics, chorology and evolution
  • Plant evolution
  • Plants
  • POLEMONIACEAE
  • SECUENCIA NUCLEICA
  • SEQUENCE NUCLEIQUE
  • Taxa
  • TAXONOMIA NUMERICA
  • TAXONOMIE NUMERIQUE
  • We they distinction
ispartof: Systematic botany, 1994-01, Vol.19 (1), p.126-142
description: Nucleotide sequences of the plastid encoded gene matK were examined for their potential utility in phylogenetic analyses within angiosperm families. Sequences 661 bases in length were obtained from twenty species of Polemoniaceae. Phylogenetic analyses resulted in four equally parsimonious trees with a consistency index of 0.70. Several well supported groups allowed us to test hypotheses of relationship within Polemoniaceae. The segregation of lpomopsis and Allophyllum from Gilia was supported by the placement of each in distinct groups separate from a group of four species of Gilia. Several strongly supported groups include genera now placed in different tribes. There was no support for the current separation of temperate Polemoniaceae into two tribes. The tropical genera were resolved as basal and paraphyletic within the family. The family as a whole was monophyletic with no support for the segregate family Cobaeaceae. Sequences of matK, a gene that had not been used previously for phylogenetic analyses, provided a sufficient number of reliable characters for phylogenetic analysis within Polemoniaceae. Pairwise comparisons of matK and rbcL sequences of the same taxa were performed. Sequences of matK varied at an overall rate twice that of rbcL sequences. Substitutions at the third codon position predominated in rbcL sequences, while in matK substitutions were more evenly distributed across codon positions
language: eng
source: Alma/SFX Local Collection
identifier: ISSN: 0363-6445
fulltext: fulltext
issn:
  • 0363-6445
  • 1548-2324
url: Link


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titlePhylogenetic analyses of Polemoniaceae using nucleotide sequences of the plastid gene matK
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descriptionNucleotide sequences of the plastid encoded gene matK were examined for their potential utility in phylogenetic analyses within angiosperm families. Sequences 661 bases in length were obtained from twenty species of Polemoniaceae. Phylogenetic analyses resulted in four equally parsimonious trees with a consistency index of 0.70. Several well supported groups allowed us to test hypotheses of relationship within Polemoniaceae. The segregation of lpomopsis and Allophyllum from Gilia was supported by the placement of each in distinct groups separate from a group of four species of Gilia. Several strongly supported groups include genera now placed in different tribes. There was no support for the current separation of temperate Polemoniaceae into two tribes. The tropical genera were resolved as basal and paraphyletic within the family. The family as a whole was monophyletic with no support for the segregate family Cobaeaceae. Sequences of matK, a gene that had not been used previously for phylogenetic analyses, provided a sufficient number of reliable characters for phylogenetic analysis within Polemoniaceae. Pairwise comparisons of matK and rbcL sequences of the same taxa were performed. Sequences of matK varied at an overall rate twice that of rbcL sequences. Substitutions at the third codon position predominated in rbcL sequences, while in matK substitutions were more evenly distributed across codon positions
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subjectBiological and medical sciences ; Biological taxonomies ; CODE GENETIQUE ; CODIGO GENETICO ; Codons ; FILOGENIA ; Fundamental and applied biological sciences. Psychology ; GENE ; Genera ; GENES ; Genetic variation ; GENETICA ; GENETIQUE ; Nucleotide sequences ; Parsimony ; Phylogenetics ; PHYLOGENIE ; Plant cytology, morphology, systematics, chorology and evolution ; Plant evolution ; Plants ; POLEMONIACEAE ; SECUENCIA NUCLEICA ; SEQUENCE NUCLEIQUE ; Taxa ; TAXONOMIA NUMERICA ; TAXONOMIE NUMERIQUE ; We they distinction
ispartofSystematic botany, 1994-01, Vol.19 (1), p.126-142
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abstractNucleotide sequences of the plastid encoded gene matK were examined for their potential utility in phylogenetic analyses within angiosperm families. Sequences 661 bases in length were obtained from twenty species of Polemoniaceae. Phylogenetic analyses resulted in four equally parsimonious trees with a consistency index of 0.70. Several well supported groups allowed us to test hypotheses of relationship within Polemoniaceae. The segregation of lpomopsis and Allophyllum from Gilia was supported by the placement of each in distinct groups separate from a group of four species of Gilia. Several strongly supported groups include genera now placed in different tribes. There was no support for the current separation of temperate Polemoniaceae into two tribes. The tropical genera were resolved as basal and paraphyletic within the family. The family as a whole was monophyletic with no support for the segregate family Cobaeaceae. Sequences of matK, a gene that had not been used previously for phylogenetic analyses, provided a sufficient number of reliable characters for phylogenetic analysis within Polemoniaceae. Pairwise comparisons of matK and rbcL sequences of the same taxa were performed. Sequences of matK varied at an overall rate twice that of rbcL sequences. Substitutions at the third codon position predominated in rbcL sequences, while in matK substitutions were more evenly distributed across codon positions
copKent, OH
pubAmerican Society of Plant Taxonomists
doi10.2307/2419717