“Evolution of early land plants life cycles and evo-devo interpretations in plant biology”

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Tuesday 11 December 2018, 11:00 - 12:30

 
ABSTRACT

Alternative hypotheses of antithetic (interpolation) vs. homologous (transformation) origins of alternation of land plants generations were first systematically formulated by ?elakovský in 1874. In recent decades it appeared that the antithetic possibility was the only viable one. However, current developments in paleobotany of first land plants and phylogenetics of extant basal land plants support possibility that the polysporangiate life cycle, with relatively independent gametophyte and sporophyte generations (as is the case in most Rhyniophytes) might have been an ancestral one. Potential consequences of this new perspective for the evo-devo interpretations in plant biology will be discussed.

Location Jozef Schell Seminar Room
Contact Dr Viktor Žárský
Department of Experimental Plant Biology
Charles University in Prague
Faculty of Science
CZECH REPUBLIC