Allometry of sexual size dimorphism in domestic dog.

<h4>Background</h4>The tendency for male-larger sexual size dimorphism (SSD) to scale with body size - a pattern termed Rensch's rule - has been empirically supported in many animal lineages. Nevertheless, its theoretical elucidation is a subject of debate. Here, we exploited the ex...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Daniel Frynta, Jana Baudyšová, Petra Hradcová, Kateřina Faltusová, Lukáš Kratochvíl
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/15bf2b0e879240e98629f1a2f9abc114
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:15bf2b0e879240e98629f1a2f9abc114
record_format	dspace
spelling	oai:doaj.org-article:15bf2b0e879240e98629f1a2f9abc1142021-11-18T08:14:03ZAllometry of sexual size dimorphism in domestic dog.1932-620310.1371/journal.pone.0046125https://doaj.org/article/15bf2b0e879240e98629f1a2f9abc1142012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23049956/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>The tendency for male-larger sexual size dimorphism (SSD) to scale with body size - a pattern termed Rensch's rule - has been empirically supported in many animal lineages. Nevertheless, its theoretical elucidation is a subject of debate. Here, we exploited the extreme morphological variability of domestic dog (Canis familiaris) to gain insights into evolutionary causes of this rule.<h4>Methodology/principal findings</h4>We studied SSD and its allometry among 74 breeds ranging in height from less than 19 cm in Chihuahua to about 84 cm in Irish wolfhound. In total, the dataset included 6,221 individuals. We demonstrate that most dog breeds are male-larger, and SSD in large breeds is comparable to SSD of their wolf ancestor. Among breeds, SSD becomes smaller with decreasing body size. The smallest breeds are nearly monomorphic.<h4>Conclusions/significance</h4>SSD among dog breeds follows the pattern consistent with Rensch's rule. The variability of body size and corresponding changes in SSD among breeds of a domestic animal shaped by artificial selection can help to better understand processes leading to emergence of Rensch's rule.Daniel FryntaJana BaudyšováPetra HradcováKateřina FaltusováLukáš KratochvílPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 9, p e46125 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Daniel Frynta Jana Baudyšová Petra Hradcová Kateřina Faltusová Lukáš Kratochvíl Allometry of sexual size dimorphism in domestic dog.
description	<h4>Background</h4>The tendency for male-larger sexual size dimorphism (SSD) to scale with body size - a pattern termed Rensch's rule - has been empirically supported in many animal lineages. Nevertheless, its theoretical elucidation is a subject of debate. Here, we exploited the extreme morphological variability of domestic dog (Canis familiaris) to gain insights into evolutionary causes of this rule.<h4>Methodology/principal findings</h4>We studied SSD and its allometry among 74 breeds ranging in height from less than 19 cm in Chihuahua to about 84 cm in Irish wolfhound. In total, the dataset included 6,221 individuals. We demonstrate that most dog breeds are male-larger, and SSD in large breeds is comparable to SSD of their wolf ancestor. Among breeds, SSD becomes smaller with decreasing body size. The smallest breeds are nearly monomorphic.<h4>Conclusions/significance</h4>SSD among dog breeds follows the pattern consistent with Rensch's rule. The variability of body size and corresponding changes in SSD among breeds of a domestic animal shaped by artificial selection can help to better understand processes leading to emergence of Rensch's rule.
format	article
author	Daniel Frynta Jana Baudyšová Petra Hradcová Kateřina Faltusová Lukáš Kratochvíl
author_facet	Daniel Frynta Jana Baudyšová Petra Hradcová Kateřina Faltusová Lukáš Kratochvíl
author_sort	Daniel Frynta
title	Allometry of sexual size dimorphism in domestic dog.
title_short	Allometry of sexual size dimorphism in domestic dog.
title_full	Allometry of sexual size dimorphism in domestic dog.
title_fullStr	Allometry of sexual size dimorphism in domestic dog.
title_full_unstemmed	Allometry of sexual size dimorphism in domestic dog.
title_sort	allometry of sexual size dimorphism in domestic dog.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/15bf2b0e879240e98629f1a2f9abc114
work_keys_str_mv	AT danielfrynta allometryofsexualsizedimorphismindomesticdog AT janabaudysova allometryofsexualsizedimorphismindomesticdog AT petrahradcova allometryofsexualsizedimorphismindomesticdog AT katerinafaltusova allometryofsexualsizedimorphismindomesticdog AT lukaskratochvil allometryofsexualsizedimorphismindomesticdog
_version_	1718422028202016768

Allometry of sexual size dimorphism in domestic dog.

Ejemplares similares