Am. J. Bot. Cross-Journal Searching
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (72)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Francisco-Ortega, J.
Right arrow Articles by Jansen, R. K.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Francisco-Ortega, J.
Right arrow Articles by Jansen, R. K.
Agricola
Right arrow Articles by Francisco-Ortega, J.
Right arrow Articles by Jansen, R. K.

American Journal of Botany, Vol 84, 1595, Copyright © 1997 by Botanical Society of America, Inc.

SYSTEMATICS AND PHYTOGEOGRAPHY

Molecular evidence for a Mediterranean origin of the Macaronesian endemic genus Argyranthemum (Asteraceae)

J Francisco-Ortega, A Santos-Guerra, A Hines and RK Jansen

The internal transcribed spacers (ITS) of nuclear ribosomal DNA were sequenced for 52 species from 32 genera and eight subtribes of Anthemideae. Phylogenetic analyses of ITS data generated trees that are largely incongruent with the recent classification of Anthemideae; most of the subtribes examined are not resolved as monophyletic. However, ITS trees are congruent with morphological, isozyme, phytochemical, and chloroplast DNA (cpDNA) restriction site data in supporting a Mediterranean origin for Argyranthemum, the largest endemic genus of the Atlantic oceanic islands. A combined analysis of ITS sequences and cpDNA restriction sites indicates that Argyranthemum is sister to the other three genera of Chrysantheminae (i.e., Chrysanthemum, Heteranthemis, and Ismelia). Times of divergence of Argyranthemum inferred from the ITS sequences ranged between 0.26 and 2.1 million years ago (mya) and are lower than values previously reported from isozyme and cpDNA data (1.5-3.0 mya). It is likely that rate heterogeneity of the ITS sequences in the Anthemideae accounts for the low divergence-time estimates. Comparison of data for 20 species in Argyranthemum and Chrysantheminae indicates that the cpDNA restriction site approach provided much more phylogenetic information than ITS sequences. Thus, restriction site analyses of the entire chloroplast genome remain a valuable approach for studying recently derived island plants.


This article has been cited by other articles:


Home page
 ANN BOT (LOND)Home page
A. WANG, M. YANG, and J. LIU
Molecular Phylogeny, Recent Radiation and Evolution of Gross Morphology of the Rhubarb genus Rheum (Polygonaceae) Inferred from Chloroplast DNA trnL-F Sequences
Ann. Bot., September 1, 2005; 96(3): 489 - 498.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
M. A. Carine, S. J. Russell, A. Santos-Guerra, and J. Francisco-Ortega
Relationships of the Macaronesian and Mediterranean floras: molecular evidence for multiple colonizations into Macaronesia and back-colonization of the continent in Convolvulus (Convolvulaceae)
Am. J. Botany, July 1, 2004; 91(7): 1070 - 1085.
[Abstract] [Full Text] [PDF]

Home page
 ANN BOT (LOND)Home page
J. SUDA, T. KYNCL, and R. FREIOVA
Nuclear DNA Amounts in Macaronesian Angiosperms
Ann. Bot., July 1, 2003; 92(1): 153 - 164.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
D. M. Percy and Q. C. B. Cronk
Different fates of island brooms: contrasting evolution in Adenocarpus, Genista, and Teline (Genisteae, Fabaceae) in the Canary Islands and Madeira
Am. J. Botany, May 1, 2002; 89(5): 854 - 864.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
J. Francisco-Ortega, J. C. Barber, A. Santos-Guerra, R. Febles-Hernández, and R. K. Jansen
Origin and evolution of the endemic genera of Gonosperminae (Asteraceae: Anthemideae) from the Canary Islands: evidence from nucleotide sequences of the internal transcribed spacers of the nuclear ribosomal DNA
Am. J. Botany, January 1, 2001; 88(1): 161 - 169.
[Abstract] [Full Text]

Home page
 Am. J. Bot.Home page
G. J. Schmidt and E. E. Schilling
Phylogeny and biogeography of Eupatorium (Asteraceae: Eupatorieae) based on nuclear ITS sequence data
Am. J. Botany, May 1, 2000; 87(5): 716 - 726.
[Abstract] [Full Text]

Home page
 Am. J. Bot.Home page
P. Vargas, C. M. Morton, and S. L. Jury
Biogeographic patterns in Mediterranean and Macaronesian species of Saxifraga (Saxifragaceae) inferred from phylogenetic analyses of ITS sequences
Am. J. Botany, May 1, 1999; 86(5): 724 - 734.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
R. D. Noyes and L. H. Rieseberg
ITS sequence data support a single origin for North American Astereae (Asteraceae) and reflect deep geographic divisions in Aster s.l.
Am. J. Botany, March 1, 1999; 86(3): 398 - 412.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
A. B. Kornkven, L. E. Watson, and J. R. Estes
Phylogenetic analysis of Artemisia section Tridentatae (Asteraceae) based on sequences from the internal transcribed spacers (ITS) of nuclear ribosomal DNA
Am. J. Botany, December 1, 1998; 85(12): 1787 - 1795.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1997 by the Botanical Society of America, Inc.