You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Phylogenetic Relationships of Muehlenbeckia, Fallopia, and Reynoutria (Polygonaceae) Investigated with Chloroplast and Nuclear Sequence Data
Tanja M. Schuster, Karen L. Wilson and Kathleen A. Kron
International Journal of Plant Sciences
Vol. 172, No. 8 (October 2011), pp. 1053-1066
Published by: The University of Chicago Press
Stable URL: http://www.jstor.org/stable/10.1086/661293
Page Count: 14
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
AbstractThe monophyly of Muehlenbeckia and evolutionary relationships with other genera in Polygonoideae have been unclear. The traditional placement of Muehlenbeckia in Coccolobeae (Eriogonoideae) along with Antigonon, Brunnichia, and Coccoloba has not been supported in previous studies, and it is more closely related to Fallopia in Polygonoideae. Molecular data from 22 species of Muehlenbeckia and from representatives of Atraphaxis, Fallopia (including Reynoutria), Polygonella, and Polygonum s.s. were generated from five chloroplast regions (matK, ndhF, 3′rps16-5′trnK, trnL-trnF 3′trnV-ndhC) and two nuclear gene regions (second intron of LEAFY, internal transcribed spacer). Analyses used maximum likelihood and maximum parsimony methods. Neither Fallopia or Muehlenbeckia is monophyletic, with most species of Muehlenbeckia related to Fallopia. Four clades are named as a result of this study: Duma, Fallopia, Muehlenbeckia, and Reynoutria. Duma contains three Australian species of Muehlenbeckia that form a clade sister to the clade containing Polygonum and Polygonella. Relationships within Muehlenbeckia correspond to geographic distribution patterns, and relationships in the Reynoutria and Fallopia clades correlate with base chromosome numbers.
© 2011 by The University of Chicago. All rights reserved.