Evolution of self-incompatibility:
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چکیده
Whitehouse (1950): 1. Sudden rise of angiosperms during the Cretaceous period (144-65 million years ago) was due to the development of barriers for self-pollination forcing the flowering plants to out breed and resulted genetic variations and rapid expansion of the angiosperms. 2. 70% of the angiosperms are hermophrodite species, while no more than 5% dioecious. Such a high proportion of hermophrodite species would not have evolved with out SI – dioecious plants would have advantages otherwise – more of those – which is not true. Thus, SI is an early event.
منابع مشابه
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تاریخ انتشار 2002