Abstract:
:We used Amplified Fragment Length Polymorphism markers (AFLP) and breeding system studies to investigate the population structure and reproductive biology of Hypochaeris angustifolia (Asteraceae: Cichorieae). This species is endemic to altiplanos of the Atlas Mountains (Morocco) where it occurs in scattered populations, and it is the sister species to c. 40 species of this genus in South America. PCoA, NJ, and Bayesian clustering, revealed that the populations are very isolated whilst AFLP parameters show that almost all populations have marked genetic divergence. We contend that these features are more in accord with a vicariance origin for the scattered populations of H. angustifolia, rather than establishment by long-distance dispersal. The breeding system studies revealed that H. angustifolia is a self-incompatible species, with low fecundity in natural and in experimental crosses, probably due to a low frequency of compatible phenotypes within and between the populations.
journal_name
Mol Phylogenet Evoljournal_title
Molecular phylogenetics and evolutionauthors
Terrab A,Ortiz MA,Talavera M,Ariza MJ,Moriana Mdel C,García-Castaño JL,Tremetsberger K,Stuessy TF,Baeza CM,Urtubey E,Ruas Cde F,Casimiro-Soriguer R,Balao F,Gibbs PE,Talavera Sdoi
10.1016/j.ympev.2009.06.008subject
Has Abstractpub_date
2009-10-01 00:00:00pages
13-22issue
1eissn
1055-7903issn
1095-9513pii
S1055-7903(09)00229-2journal_volume
53pub_type
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