Consulta: subjectFacets:"Sexual structure"
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Data/hora: 16/06/2024 10:53:22

Sexual ratio and floral biology of the dioecious Neea theifera Oerst. (Nyctaginaceae) in a cerrado rupestre of central Brazil
Provedor de dados: Acta Botanica Brasilica
Autores: Amorim,Felipe Wanderley; Mendes-Rodrigues,Clesnan; Maruyama,Pietro Kiyoshi; Oliveira,Paulo Eugênio.
Dioecy is characterized by a complete separation of sexual functions on male and female plants. It has evolved many times in flowering plants and is widespread among distinct Angiosperm families. It is viewed as a reproductive strategy to reduce endogamy, and to promote optimal resource allocation between male and female sexual functions. Neea theifera is a common species in Cerrado, neotropical savannas in Brazil, but information regarding its reproductive biology is still incomplete. In order to investigate how environmental conditions possibly affect this dioecious species, we studied its floral biology, sex ratio and spatial distribution of sexual morphs along a soil-altitudinal gradient. The sex ratio did not significantly deviate from the expected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Altitudinal gradient; Dioecy; Neotropical savanna; Sexual structure; Pollination.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062011000400006