Fitness & Wellness Business Week
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Evolution
New evolution findings from G. Gleiser and co-researchers published
August 20th, 2008
According to a study from Valencia, Spain, "In sexually polymorphic species, the morphs are maintained by frequency-dependent selection through disassortative mating. In heterodichogamous populations in which disassortative mating occurs between the protandrous and protogynous morphs, a decrease in female fitness in one morph is hypothesized to drive sexual specialization in the other morph, resulting in dimorphic populations." "We test these ideas in a population of the heterodichogamous species, Acer opalus. We assessed both prospective gender of individuals in terms of their allocations and actual parentage using microsatellites; we found that most matings in A....
Source: Fitness & Wellness Business Week (2008-08-20)
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