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Sexual dimorphism and ecological differentiation of male and female plants

Meagher, Thomas R.

Annals of the Missouri Botanical Garden, 1984, Vol.71 (1), p.254-264 [Periódico revisado por pares]

St. Louis, MO: Missouri Botanical Garden

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Título:
Sexual dimorphism and ecological differentiation of male and female plants
Autor: Meagher, Thomas R.
Assuntos: Biological and medical sciences ; diferenciacion ; differenciation ; differentiation ; Ecological genetics ; ecological zonation ; evolucion ; evolution ; Evolutionary genetics ; Female animals ; Flowering ; Fundamental and applied biological sciences. Psychology ; Male animals ; organe reproducteur ; organos reproductores ; Plant physiology and development ; Plant reproduction ; plantas ; plante ; Plants ; Population ecology ; reproductive organs ; sex ; Sex ratio ; sexe ; sexo ; Sexual dimorphism ; The Evolution of Dioecy ; Vegetative and sexual reproduction, floral biology, fructification ; zonation ecologique ; zonificacion ecologica
É parte de: Annals of the Missouri Botanical Garden, 1984, Vol.71 (1), p.254-264
Notas: F30
F
Descrição: The evolution of dioecy within a plant population introduces a situation in which there is divergent selection for means of achieving reproductive success. Male and female individuals play different roles in the reproductive biology of a dioecious species and hence have very different resource demands imposed upon them. The selection pressures presented by these different resource demands could in turn lead to the evolution of sexual dimorphism. Empirical studies of several dioecious plant species have shown that male and female plants differ in their resource allocation patterns. These differences between the sexes have also been shown to lead to sexual dimorphism in a wide range of life history characteristics in the dioecious perennial Chamaelirium luteum, including age at first reproduction, flowering schedules, size and size dynamics, and mortality rates. Quantitative genetic studies of resource allocation patterns for C. luteum suggest that the observed sexual dimorphism is probably the result of independent selection on the two sexes separately rather than the result of selection specifically favoring sexual dimorphism.
Editor: St. Louis, MO: Missouri Botanical Garden
Idioma: Inglês

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Sexual dimorphism and ecological differentiation of male and female plants

Meagher, Thomas R.

St. Louis, MO: Missouri Botanical Garden

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