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Artículo

The buck in the milkweed: Evidence of male-male interference among pollinaria on pollinators

Cocucci, Andrea AristidesIcon ; Marino, SalvadorIcon ; Baranzelli, Matias CristianIcon ; Wiemer, Ana PiaIcon ; Sersic, Alicia NoemiIcon
Fecha de publicación: 06/2014
Editorial: Wiley Blackwell Publishing, Inc
Revista: New Phytologist
ISSN: 0028-646X
e-ISSN: 1469-8137
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Bioquímica y Biología Molecular

Resumen

Direct physical confrontation among conspecifics for access to mates is a form of sexual selection well known among animals, but not thought to take place in plants. Consequently, no structures are known that can be considered weapons evolved under such confrontation. Pollinaria of milkweeds may physically compete for access to attachment points on the pollinators? body, and occasionally pollinaria may link onto pre-existing pollinaria on a pollinator resulting in concatenation. We tested the hypotheses that concatenation may result in interference between proximal and distal pollinaria and that features of non-concatenating pollinaria might be attributed to prevention of concatenation, by analyzing pollen donation efficiency, experimental manipulation of the phenotype, and the phylogenetic patterns of co-occurrence of traits.It is shown that concatenation was able to diminish the reproductive performance of proximal pollinaria, that horns on pollinaria prevented concatenation, and horn acquisition was correlated with a loss of concatenation. The experimental removal of horns in species that did not concatenate reverted to concatenation. The present could be the first evidence of male body-body struggles and of the acquisition of weapons related to these struggles in the fashion that are known in animals.
Palabras clave: Sexual Selection , Competitive Rivalry , Male Struggle , Weapons , Milkweed , Pollinarium
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/22503
URL: http://onlinelibrary.wiley.com/doi/10.1111/nph.12766/abstract
DOI: http://dx.doi.org/10.1111/nph.12766
Colecciones
Articulos(IDEA)
Articulos de INSTITUTO DE DIVERSIDAD Y ECOLOGIA ANIMAL
Articulos(IMBIV)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA VEGETAL (P)
Citación
Cocucci, Andrea Aristides; Marino, Salvador; Baranzelli, Matias Cristian; Wiemer, Ana Pia; Sersic, Alicia Noemi; The buck in the milkweed: Evidence of male-male interference among pollinaria on pollinators; Wiley Blackwell Publishing, Inc; New Phytologist; 203; 1; 6-2014; 280-286
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