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PMID: 9126564 Published · ppublish English Comparative Study Journal Article Research Support, Non-U.S. Gov't

Phylogenetic analysis of the Triticeae (Poaceae) based on rpoA sequence data.

Molecular phylogenetics and evolution ·Vol. 7 ·No. 2 ·1997-04-00 ·Pages 217-30

Petersen G, Seberg O

Abstract

A phylogenetic analysis was conducted on 31 diploid species representing 21 of the 24 monogenomic genera of the Triticeae. The data used were derived from a 1343- to 1358-bp region of the plastid genome spanning the entire rpoA gene plus minor parts of the petD and rps11 genes and the two intergenic spacers surrounding rpoA. Bromus inermis (Bromeae) was used as an outgroup. A total of 68 variable sites, 25 of them phylogenetically informative, and seven length mutations were detected. The length mutations occurred in the noncoding regions. Phylogenetic analyses were performed on the whole data set and on various subsets. The analysis of the unweighted data resulted in 48 equally parsimonious trees (length 98, CI = 0.88, RI = 0.92, ti = 0.25). A parsimony jackknife analysis proved several clades to be well supported. The effect of transition/transversion weighting was also investigated. In general, congruence with other data sets was negatively effected by weighting. The preferred phylogenetic hypothesis is congruent with a phylogeny based on plastid RFLP data including the same taxa, but it is largely incongruent with phylogenies derived from nuclear rDNA and morphology.

MeSH Terms

Base Sequence DNA Primers/genetics DNA, Plant/genetics Diploidy Edible Grain/classification,genetics Genes, Plant Molecular Sequence Data Phylogeny Poaceae/classification,genetics Species Specificity

Chemicals

DNA Primers DNA, Plant

Authors & Affiliations

2 authors, click to expand affiliations / ORCID

Petersen G

Botanical Institute, University of Copenhagen, Denmark.

Seberg O

Article Info

Journal

Molecular phylogenetics and evolution

Abbr.

Mol Phylogenet Evol

ISSN

1055-7903

DOI

10.1006/mpev.1996.0389

Published

1997-04-00

Pages

217-30

Language

English

Region

United States

NLM ID

9304400

Subset

Databases

GENBANK

Z77741, Z77742, Z77743, Z77744, Z77745, Z77746, Z77748, Z77749, Z77750, Z77751, Z77752, Z77753, Z77754, Z77755, Z77756, Z77757, Z77758, Z77759, Z77761, Z77762, Z77763, Z77764, Z77765, Z77766, Z77767, Z77768, Z77770, Z77771, Z79500, Z79501

External Links

PubMed source DOI: 10.1006/mpev.1996.0389 View journal details

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Phylogenetic analysis of the Triticeae (Poaceae) based on rpoA sequence data.

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