Evolution: Selfing Takes Species Down Stebbins’s Blind Alley
نویسندگان
چکیده
Shifts from outcrossing to selfing have occurred thousands of times across the tree of life. By reducing the size of the gene pool, selfing should limit adaptive potential. A refreshing empirical experiment with snails supports this long-standing hypothesis.
منابع مشابه
Evolution of autonomous selfing accompanies increased specialization in the pollination system of Schizanthus (Solanaceae).
The co-occurrence of elaborate flowers visited by specific groups of pollinators and capacity for autonomous selfing in the same plant species has puzzled evolutionary biologists since the time of Charles Darwin. To examine whether autonomous selfing and floral specialization evolved in association, we quantified the autofertility level (AFI) in nine Schizanthus species characterized by a wide ...
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عنوان ژورنال:
- Current Biology
دوره 27 شماره
صفحات -
تاریخ انتشار 2017