Showing results 961 to 980 on 1232 in total
Thèse de Guillaume Kon Kam King le jeudi 29 octobre 2015 à 14 h - amphithéâtre Grignard (La Doua)
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Thèse de Ariane Payne - vendredi 14 mars 2014 à 10 h - Salle de conférences BU la Doua
HDR de Sylvain Goutelle le vendredi 10 février 2017 à 14 h (salle des thèses, faculté de Médecine et Pharmacie, site Rockefeller)
Thèse de Perrine Pelosse - Jeudi 11 décembre 2008 - 14h30 - Amphi Gouy (Bât Lippmann)
Thèse de Adrien Pozzi le jeudi 18 décembre 2014 à 14 h - salle de conférence Bibliothèque Universitaire (Doua)
Thèse de Jérémy Larroque - mardi 24 février 2015 - 13h15 - Amphi 2 Déambulatoire
Thèse de Benjamin Wigley - 9 septembre 2013 à 14 h (Amphi CNRS)
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Multicellular organisms are morphologically very diverse at every scale, regarding size, color, and shape of individuals and of their different parts. Natural selection and developmental constraints influence evolution of these characteristics, on the short term as well as on the long term. The model chosen here to study form evolution is the pollen grain of flowering plants, which is much diversified morphologically. We focused on specific features called apertures, which are structures of the pollen wall involved in survival and reproduction. We investigated the relative contributions of selection and constraints in a clade representing about 75% of extant species, and we showed that the dominant pattern of this group could constitute a good trade-off between survival and reproduction components of fitness.
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