Skull sexual dimorphism appears in toy rabbits

The aim of this paper was to use geometric morphometrics to study the skull sexual dimorphism of toy rabbits, which present paedomorphic (babyness) traits comparing data with those from agriotype (ancestor), Oryctolagus cuniculus. For this purpose, we examined 43 post-weaned corpses belonging to wil...

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Autores: Parés Casanova, Pere-Miquel, Lloveras Roca, Lluís, Nadal García, Jesús
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/67799
Acceso en línea:http://hdl.handle.net/10459.1/67799
Access Level:acceso abierto
Palabra clave:Oryctolagus cuniculus
Neoteny
Paedomorphism
Progenesis
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spelling Skull sexual dimorphism appears in toy rabbitsParés Casanova, Pere-MiquelLloveras Roca, LluísNadal García, JesúsOryctolagus cuniculusNeotenyPaedomorphismProgenesisThe aim of this paper was to use geometric morphometrics to study the skull sexual dimorphism of toy rabbits, which present paedomorphic (babyness) traits comparing data with those from agriotype (ancestor), Oryctolagus cuniculus. For this purpose, we examined 43 post-weaned corpses belonging to wild rabbit (n=22, 7 ♂ and 15 ♀, 1295.6 ± 333.8 kg of body weight and 88.0 ± 1.12 cm of ear length) and toy type (n=21, 4 ♂ and 17 ♀, short and upright ears, 1031.3 ± 644.13 kg of body weight and 6.2 ± 1.08 cm of ear length). Heads were radiographed using a Potro® machine on a latero-lateral projection and 7 landmarks were located on the skull and studied by means of geometric morphometric procedures. Size and shape between genders appeared statistically different only for toys, mainly focused on splanchnocranium (face) for shape. Detected sexual dimorphism could be attributed to selection arising from differential mating success, or sexual selection, due to human management. Moreover, the inconsistency with Rensch's hypothesis - which establishes that males in larger species will tend to be larger relative to females than in smaller species- allows us to suggest that Rensch's hypothesis is not necessarily followed in artificial selection experiencing miniaturization in body shape. It must be outlined the opportunities to tackle paedomorphic questions via geometric morphometrics methods in toy rabbits.Ankara University2020202020192020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10459.1/67799http://hdl.handle.net/10459.1/67799reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://dergipark.org.tr/en/pub/communc/issue/49312/658102Communications Faculty of Sciences University of Ankara. Series C-Biology, 2019, vol. 28, num. 2, p. 225-231cc-by (c) Parés Casanova et al., 2019info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/4.0/oai:recercat.cat:10459.1/677992026-05-29T05:05:01Z
dc.title.none.fl_str_mv Skull sexual dimorphism appears in toy rabbits
title Skull sexual dimorphism appears in toy rabbits
spellingShingle Skull sexual dimorphism appears in toy rabbits
Parés Casanova, Pere-Miquel
Oryctolagus cuniculus
Neoteny
Paedomorphism
Progenesis
title_short Skull sexual dimorphism appears in toy rabbits
title_full Skull sexual dimorphism appears in toy rabbits
title_fullStr Skull sexual dimorphism appears in toy rabbits
title_full_unstemmed Skull sexual dimorphism appears in toy rabbits
title_sort Skull sexual dimorphism appears in toy rabbits
dc.creator.none.fl_str_mv Parés Casanova, Pere-Miquel
Lloveras Roca, Lluís
Nadal García, Jesús
author Parés Casanova, Pere-Miquel
author_facet Parés Casanova, Pere-Miquel
Lloveras Roca, Lluís
Nadal García, Jesús
author_role author
author2 Lloveras Roca, Lluís
Nadal García, Jesús
author2_role author
author
dc.subject.none.fl_str_mv Oryctolagus cuniculus
Neoteny
Paedomorphism
Progenesis
topic Oryctolagus cuniculus
Neoteny
Paedomorphism
Progenesis
description The aim of this paper was to use geometric morphometrics to study the skull sexual dimorphism of toy rabbits, which present paedomorphic (babyness) traits comparing data with those from agriotype (ancestor), Oryctolagus cuniculus. For this purpose, we examined 43 post-weaned corpses belonging to wild rabbit (n=22, 7 ♂ and 15 ♀, 1295.6 ± 333.8 kg of body weight and 88.0 ± 1.12 cm of ear length) and toy type (n=21, 4 ♂ and 17 ♀, short and upright ears, 1031.3 ± 644.13 kg of body weight and 6.2 ± 1.08 cm of ear length). Heads were radiographed using a Potro® machine on a latero-lateral projection and 7 landmarks were located on the skull and studied by means of geometric morphometric procedures. Size and shape between genders appeared statistically different only for toys, mainly focused on splanchnocranium (face) for shape. Detected sexual dimorphism could be attributed to selection arising from differential mating success, or sexual selection, due to human management. Moreover, the inconsistency with Rensch's hypothesis - which establishes that males in larger species will tend to be larger relative to females than in smaller species- allows us to suggest that Rensch's hypothesis is not necessarily followed in artificial selection experiencing miniaturization in body shape. It must be outlined the opportunities to tackle paedomorphic questions via geometric morphometrics methods in toy rabbits.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10459.1/67799
http://hdl.handle.net/10459.1/67799
url http://hdl.handle.net/10459.1/67799
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://dergipark.org.tr/en/pub/communc/issue/49312/658102
Communications Faculty of Sciences University of Ankara. Series C-Biology, 2019, vol. 28, num. 2, p. 225-231
dc.rights.none.fl_str_mv cc-by (c) Parés Casanova et al., 2019
info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/4.0/
rights_invalid_str_mv cc-by (c) Parés Casanova et al., 2019
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Ankara University
publisher.none.fl_str_mv Ankara University
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
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