PHYLOGENETIC RELATIONSHIP, POPULATION STRUCTURE, AND

MORIANA, C.M.; M. A. ORTIZ; J. M. ARIZA; A. TERRAB; J. L. GARCIA-CASTANO; T. F. STUESSY; K. TREMETSBERGER; M. TALAVERA; CASIMIRO SORIGUER R.; BALAO F.; DA SILVA C I; E. URTUBEY; C. M. BAEZA; S. TALAVERA

Zirich

Congreso; ‘Origin And Evolution Of Biota In Mediterranean Climate; 2007

Institute of Systematic Botany University of Zurich

The genus Hypochaeris has a disjunct distribution, with ca. 15 species in the Mediterranean region,Europe and Asia, and more than 40 species in South America. H. angustifolia is an endemic species to North Africa (Middle and High Atlas, Morocco). This species is the most probable ancestor of the American taxa of this genus. The American species of the genus Hypochaeris show a wide diversity of compatibility systems and we aimed to know the importance, in the speciation of this genus, of the breeding system of H. angustifolia. In the glasshouse of the university of Seville we sowed field-collected seeds and grew seedlings transplanted from the field, with a total of eight  studied populations; the reproductive success in the wild was also assessed. Finally, in order to know the population structure of H. angustifolia, 286 plants of ten populations covering the total distribution range of this species in Morocco were analysed using the AFLPs technique (“Amplified Fragment Length Polymorphism”).