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Inaccuracy of sexual organ position and spatial variation of styles in monomorphic enantiostylous flowers of Senna rugosa (Fabaceae-Caesalpinioideae) by Bruna Letícia Pereira Braga; Raphael Matias; Hélder Consolaro; Jefferson Thiago Souza; Natan Messias Almeida is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Inaccuracy of sexual organ position and spatial variation of styles in monomorphic enantiostylous flowers of Senna rugosa (Fabaceae-Caesalpinioideae) about?

Differences in the arrangement of floral whorls in enantiostylous species may affect the levels of reciprocity between the sexual organs of floral morphs and the functionality of the enantiostyly. In this study, we aimed to investigate enantiostyly in Senna rugosa, evaluating the variation in the position of sexual organs. Using different spatial measures, we investigated the level of herkogamy and used the inaccuracy index to describe the level of reciprocity between stigmas and anthers of different floral types and within the same floral type. We investigated the proportion of floral types within individuals of the population based on the position of the curved petal and the stigma. Stigmas of left-styled flowers are more likely to capture inter-morph pollen, whereas stigmas of rightstyled flowers may receive greater proportions of intra-morph pollen. Horizontal distance was most responsible for the non-overlap of the sexual organs, whereas height was the measure that contributed most to their proximity. Individuals showed a similar proportion of floral types. However, from a morpho-functional perspective, the proportion of flowers differed, with a lower proportion of functionall

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Author

Bruna Letícia Pereira Braga; Raphael Matias; Hélder Consolaro; Jefferson Thiago Souza; Natan Messias Almeida

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)