par Lefebvre, Claude
Référence Nature (London), 243, 5402, page (96-97)
Publication Publié, 1973
Article révisé par les pairs
Résumé : ANTONOVICS1 and Lefèbvre2 have shown that self-fertility occurs in zinc-lead mine populations of normally incompatible species (Agrostis tenuis, Anthoxanthum odoratum, Armeria maritima). In Agrostis and Anthoxanthum1 this change to inbreeding is suggested to be an adaptation to reduce gene flow from plants growing adjacent to the mine that do not tolerate metals. In Armeria2 there is no surrounding non-tolerant population and self-fertility has been assumed to be a mechanism usually found in colonizing species which enables a reliable production of seeds in colonizing situations where individuals are both few and sparse3,4. © 1973 Nature Publishing Group.