BREAKDOWN OF DIOECY: MODELS WHERE MALES ACQUIRE COSEXUAL FUNCTIONS
نویسندگان
چکیده
منابع مشابه
Surviving in a Cosexual World: A Cost-Benefit Analysis of Dioecy in Tropical Trees.
Dioecy has a demographic disadvantage compared with hermaphroditism: only about half of reproductive adults produce seeds. Dioecious species must therefore have fitness advantages to compensate for this cost through increased survival, growth, and/or reproduction. We used a full life cycle approach to quantify the demographic costs and benefits associated with dioecy while controlling for demog...
متن کاملThe Role of Geitonogamy in the Gradual Evolution to Dioecy in Cosexual Plants
We present a model for the gradual evolution towards dioecy in cosexual plants with geitonogamous selfing. We show how geitonogamous selfing (i.e., transfer of pollen between flowers on the same plant) can facilitate the evolution of dioecy (i.e., separate male and female individuals) in cosexual plants (i.e., both sexual functions on the same plant). We study the effect of parameters such as i...
متن کاملGender plasticity and sexual system stability in Wurmbea.
BACKGROUND AND AIMS Sexually dimorphic populations are often located in drier habitats than cosexual populations. Gender plasticity (GP), whereby hermaphrodites alter female and male functions depending on resources, and sex-differential plasticity (SDP) between hermaphrodites and unisexuals are predicted to affect sexual system stability. Here, GP and SDP are evaluated in cosexual and gynodioe...
متن کاملPART OF A SPECIAL ISSUE ON PLANT MATING SYSTEMS Gender plasticity and sexual system stability in Wurmbea
†Background and aims Sexually dimorphic populations are often located in drier habitats than cosexual populations. Gender plasticity (GP), whereby hermaphrodites alter female and male functions depending on resources, and sex-differential plasticity (SDP) between hermaphrodites and unisexuals are predicted to affect sexual system stability. Here, GP and SDP are evaluated in cosexual and gynodio...
متن کاملAstrocytes in mouse models of tauopathies acquire early deficits and lose neurosupportive functions.
Microtubule-associated protein tau aggregates constitute the characteristic neuropathological features of several neurodegenerative diseases grouped under the name of tauopathies. It is now clear that the process of tau aggregation is associated with neurodegeneration. Several transgenic tau mouse models have been developed where tau progressively aggregates, causing neuronal death. Previously ...
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ژورنال
عنوان ژورنال: Evolution
سال: 2013
ISSN: 0014-3820
DOI: 10.1111/evo.12283