You are here: Home
/ Publication Information
Title: Phylogeny of Castanea (Fagaceae) based on chloroplast trnT-L-F sequence data
Author: Lang, Ping; Dane, Fenny; Kubisiak, Thomas L.;
Source: Tree Genetics & Genomes, Vol. 2: 132-139
Publication Series: Miscellaneous Publication
Description: Species in the genus Castanea are widely distributed in the deciduous forests of the Northern Hemisphere from Asia to Europe and North America. They show floristic similarity but differences in chestnut blight resistance especially among eastern Asian and eastern North American species. Phylogenetic analyses were conducted in this study using sequences of three chloroplast noncoding trnT-L-F regions. The trnT-L region was found to be the most variable and informative region. The highest proportion of parsimony informative sites, more and larger indels, and higher pairwise distances between taxa were obtained at trnT-L than at the other two regions. The high A+T values (74.5%) in the Castanea trnT-L region may explain the high proportion of transversions found in this region where as comparatively lower A+T values were found in the trnL intron (68.35%) and trnL-F spacer (70.07%) with relatively balanced numbers of transitions and transversions. The genus Castanea is supported as a monophyletic clade, while the section Eucastanon is paraphyletic. C. crenata is the most basal clade and sister to the remainder of the genus. The three Chinese species of Castanea are supported as a single monophyletic clade, whose sister group contains the North American and European species. There is consistent but weak support for a sister-group relationship between the North American species and European species.
Keywords: Fagacae, Castanea, trnT-L-F, Phylogenectics
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Lang, Ping; Dane, Fenny; Kubisiak, Thomas L. 2005. Phylogeny of Castanea (Fagaceae) based on chloroplast trnT-L-F sequence data. Tree Genetics & Genomes, Vol. 2: 132-139
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility