A phylogeographic study of the cosmopolitan genus Phragmites (Poaceae) based on AFLPs

Within the genus Phragmites (Poaceae), the species P. australis (the common reed) is virtually cosmopolitan, and shows considerable variation in ploidy level and morphology. Genetic variation in Phragmites was studied using AFLPs, and analysed with parsimony and distance methods. Groups of P. austra...

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Bibliographic Details
Published in:Plant systematics and evolution 2006-05, Vol.258 (3/4), p.161-182
Main Authors: Lambertini, C., Gustafsson, M. H. G., Frydenberg, J., Lissner, J., Speranza, M., Brix, H.
Format: Article
Language:English
Subjects:
Aquatic plants
Biological taxonomies
Chromosomes
Cloning
DNA
Genetic diversity
Genetic variation
Geography
Gulfs
Haplotypes
Morphology
Optimization
Phragmites
Phylogeny
Phylogeography
Ploidies
Ploidy
Poaceae
Species
Specimens
Tetraploidy
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Summary:Within the genus Phragmites (Poaceae), the species P. australis (the common reed) is virtually cosmopolitan, and shows considerable variation in ploidy level and morphology. Genetic variation in Phragmites was studied using AFLPs, and analysed with parsimony and distance methods. Groups of P. australis strongly supported in the analyses include one that comprises all South American clones, a distinct group from the US Gulf Coast, and a group of E. Asian and Australian octoploids. Among the other species, the paleotropical P. vallatoria is supported as monophyletic and most closely related to the paraphyletic P. mauritianus and to the Gulf Coast and S. American groups. The E. Asian species P. japonicus is closely related to a group of P. australis clones mostly from central North America. Tetraploidy predominates in the genus, and optimisation of chromosome numbers onto the phylogeny shows that higher ploidy levels have evolved many times.
ISSN:0378-2697
1615-6110
2199-6881
DOI:10.1007/s00606-006-0412-2