The origin of the bifurcating style in Asteraceae (Compositae)

Background and Aims The plant family Asteraceae (Compositae) exhibits remarkable morphological variation in the styles of its members. Lack of studies on the styles of the sister families to Asteraceae, Goodeniaceae and Calyceraceae, obscures our understanding of the origin and evolution of this rep...

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Autores principales: Katinas, Liliana, Hernández, Marcelo Paulo, Arambarri, Ana María, Funk, Vicki A.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ciencias Naturales
Asteraceae
Calyceraceae
Goodeniaceae
homology
morphology
histochemistry
style evolution
venation
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/108116
http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC4866318&blobtype=pdf
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-108116
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Asteraceae
Calyceraceae
Goodeniaceae
homology
morphology
histochemistry
style evolution
venation
spellingShingle Ciencias Naturales
Asteraceae
Calyceraceae
Goodeniaceae
homology
morphology
histochemistry
style evolution
venation
Katinas, Liliana
Hernández, Marcelo Paulo
Arambarri, Ana María
Funk, Vicki A.
The origin of the bifurcating style in Asteraceae (Compositae)
topic_facet Ciencias Naturales
Asteraceae
Calyceraceae
Goodeniaceae
homology
morphology
histochemistry
style evolution
venation
description Background and Aims The plant family Asteraceae (Compositae) exhibits remarkable morphological variation in the styles of its members. Lack of studies on the styles of the sister families to Asteraceae, Goodeniaceae and Calyceraceae, obscures our understanding of the origin and evolution of this reproductive feature in these groups. The aim of this work was to perform a comparative study of style morphology and to discuss the relevance of important features in the evolution of Asteraceae and its sister families. Methods The histochemistry, venation and general morphology of the styles of members of Goodeniaceae, Calyceraceae and early branching lineages of Asteraceae were analysed and put in a phylogenetic framework to discuss the relevance of style features in the evolution of these families. Key Results The location of lipophilic substances allowed differentiation of receptive from non-receptive style papillae, and the style venation in Goodeniaceae and Calyceraceae proved to be distinctive. There were several stages of style evolution from Goodeniaceae to Asteraceae involving connation and elongation of veins, development of bilobation from an initially cup-shaped style, and a redistribution of the receptive and non-receptive papillae. Conclusions These developments resulted in bifurcation in the styles of Asteraceae, with each branch face having a different function, and it is suggested here as a mechanism that promoted outcrossing, which in turn led to the great diversification in the family.
format Articulo
Articulo
author Katinas, Liliana
Hernández, Marcelo Paulo
Arambarri, Ana María
Funk, Vicki A.
author_facet Katinas, Liliana
Hernández, Marcelo Paulo
Arambarri, Ana María
Funk, Vicki A.
author_sort Katinas, Liliana
title The origin of the bifurcating style in Asteraceae (Compositae)
title_short The origin of the bifurcating style in Asteraceae (Compositae)
title_full The origin of the bifurcating style in Asteraceae (Compositae)
title_fullStr The origin of the bifurcating style in Asteraceae (Compositae)
title_full_unstemmed The origin of the bifurcating style in Asteraceae (Compositae)
title_sort origin of the bifurcating style in asteraceae (compositae)
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/108116
http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC4866318&blobtype=pdf
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