Affordable Access

Publisher Website

Molecular phylogenetics and evolution of the endemic Hawaiian genusAdenophorus(Grammitidaceae)

Molecular Phylogenetics and Evolution
Publication Date
DOI: 10.1016/s1055-7903(02)00234-8
  • Adenophorus
  • Grammitidaceae
  • Rbcl
  • Atpβ
  • Trnl-F
  • Hawaii
  • Phylogeny
  • Biogeography
  • Bayesian Inference
  • Earth Science
  • Geography
  • Logic


Abstract Recent studies of the phylogeny of several groups of native Hawaiian vascular plants have led to significant insights into the origin and evolution of important elements of the Hawaiian flora. No groups of Hawaiian pteridophytes have been subjected previously to rigorous phylogenetic analysis. We conducted a molecular phylogenetic analysis of the endemic Hawaiian fern genus Adenophorus employing DNA sequence variation from three cpDNA fragments: rbcL, atpβ, and the trnL-trnF intergenic spacer (IGS). In the phylogenetic analyses we employed maximum parsimony and Bayesian inference. Bayesian phylogenetic inference often provided stronger support for hypothetical relationships than did nonparametric bootstrap analyses. Although phylogenetic analyses of individual DNA fragments resulted in different patterns of relationships among species and varying levels of support for various clades, a combined analysis of all three sets of sequences produced one, strongly supported phylogenetic hypothesis. The primary features of that hypothesis are: (1) Adenophorus is monophyletic; (2) subgenus Oligadenus is paraphyletic; (3) the enigmatic endemic Hawaiian species Grammitis tenella is strongly supported as the sister taxon to Adenophorus; (4) highly divided leaf blades are evolutionarily derived in the group and simple leaves are ancestral; and, (5) the biogeographical origin of the common ancestor of the Adenophorus–G. tenella clade remains unresolved, although a neotropical origin seems most likely.

There are no comments yet on this publication. Be the first to share your thoughts.


Seen <100 times

More articles like this

Molecular phylogenetics and evolution of the endem...

on Molecular Phylogenetics and Ev... March 2003

Molecular phylogenetics and evolution of turtles.

on Molecular Phylogenetics and Ev... October 2005

Molecular evolution in Hawaiian drosophilids

on Trends in Ecology & Evolution Jan 01, 1987

Molecular evolution and phylogenetics of rodent ma...

on BMC Evolutionary Biology Jan 01, 2012
More articles like this..