The uropygial gland of the Eared Dove and its evolutionary history within the Columbiformes (Aves)

The uropygial (preen) gland is a holocrine organ unique of Aves. Although several studies have been performed on the uropygial gland of different bird species, knowledge about this gland in Columbiformes is scarce. In order to fill this gap, we analysed in detail the external morphology and the hist...

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Detalles Bibliográficos
Autores principales: Chiale, María Cecilia, Carril, Julieta, Montalti, Diego, Barbeito, Claudio Gustavo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Veterinaria
Zoología
Preen gland
Zenaida auriculata
Histology
Histochemistry
Lectin
Ancestral state reconstruction
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/141639
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-141639
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Veterinaria
Zoología
Preen gland
Zenaida auriculata
Histology
Histochemistry
Lectin
Ancestral state reconstruction
spellingShingle Veterinaria
Zoología
Preen gland
Zenaida auriculata
Histology
Histochemistry
Lectin
Ancestral state reconstruction
Chiale, María Cecilia
Carril, Julieta
Montalti, Diego
Barbeito, Claudio Gustavo
The uropygial gland of the Eared Dove and its evolutionary history within the Columbiformes (Aves)
topic_facet Veterinaria
Zoología
Preen gland
Zenaida auriculata
Histology
Histochemistry
Lectin
Ancestral state reconstruction
description The uropygial (preen) gland is a holocrine organ unique of Aves. Although several studies have been performed on the uropygial gland of different bird species, knowledge about this gland in Columbiformes is scarce. In order to fill this gap, we analysed in detail the external morphology and the histological and histochemical features of the uropygial gland of the Eared Dove (Zenaida auriculata) in a comparative context. The uropygial gland of the Eared Dove is characterized by its pear-like shape composed of two lobes, conical and naked papilla, tubule-alveolar adenomers, a large primary storage chamber (a feature also present in other terrestrial avian species), and reticular and elastic fibres in the capsule and connective tissue surrounding the adenomers. The histochemistry showed a positive reaction to periodic acid-Schiff, Alcian Blue 2.5 and several lectins, evidencing the presence of diverse glycoconjugates in this organ. Since the uropygial gland may be independently present or absent within Columbiformes, we also used character mapping on a molecular phylogeny to infer the character states of this gland at ancestral nodes to understand its evolutionary history. The analysis shows that the presence of the uropygial gland is the ancestral state for Columbiformes and that its loss occurred more than once independently.
format Articulo
Articulo
author Chiale, María Cecilia
Carril, Julieta
Montalti, Diego
Barbeito, Claudio Gustavo
author_facet Chiale, María Cecilia
Carril, Julieta
Montalti, Diego
Barbeito, Claudio Gustavo
author_sort Chiale, María Cecilia
title The uropygial gland of the Eared Dove and its evolutionary history within the Columbiformes (Aves)
title_short The uropygial gland of the Eared Dove and its evolutionary history within the Columbiformes (Aves)
title_full The uropygial gland of the Eared Dove and its evolutionary history within the Columbiformes (Aves)
title_fullStr The uropygial gland of the Eared Dove and its evolutionary history within the Columbiformes (Aves)
title_full_unstemmed The uropygial gland of the Eared Dove and its evolutionary history within the Columbiformes (Aves)
title_sort uropygial gland of the eared dove and its evolutionary history within the columbiformes (aves)
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/141639
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