Cephalic heterochronies in domestic rabbits: A first study

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Heterochrony is defined as the evolutionary changes in the timing of development, presenting a unified view of neoteny, recapitulation, paedogenesis, retardation, progenesis, etc. In order to detect processes of heterochrony and differentiate them, 291 fresh corpses of domestic rabbits of different...

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Detalles Bibliográficos
Autores: Parés-Casanova, Pere M., Sofiane, Khalil, Medina, Anabel
Formato: artículo
Fecha de Publicación:2020
Institución:Universidad Nacional Mayor de San Marcos
Repositorio:Revistas - Universidad Nacional Mayor de San Marcos
Lenguaje:español
OAI Identifier:oai:ojs.csi.unmsm:article/16178
Enlace del recurso:https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16178
Nivel de acceso:acceso abierto
Materia:gerontomorphy
lagomorpha
Oryctolagus cuniculus
paedomorphy
gerontomorfia
pedomorfia
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spelling Cephalic heterochronies in domestic rabbits: A first studyHeterocronías cefálicas en conejos domésticos: Un primer estudioParés-Casanova, Pere M.Sofiane, KhalilMedina, AnabelgerontomorphylagomorphaOryctolagus cuniculuspaedomorphygerontomorfialagomorphaOryctolagus cuniculuspedomorfiaHeterochrony is defined as the evolutionary changes in the timing of development, presenting a unified view of neoteny, recapitulation, paedogenesis, retardation, progenesis, etc. In order to detect processes of heterochrony and differentiate them, 291 fresh corpses of domestic rabbits of different purposes ("belier" type n=73, "toy" type n=112, meat type n=71) were studied, from which facial and cephalic lengths were obtained, and compared them with 35 wild rabbits (Oryctolagus cuniculus). The regression lines of facial length versus the cranial length appeared homogeneous among types, but slopes showed statistically different values and, in all cases, allometric coefficients exceeding 1. This would be interpreted as a clear expression of hypomorphoses for toy rabbits (slope was lower than that for wilds), but hypermorphosis for meat animals (slope was higher than that for wilds). Wild rabbit, on the other hand, presented a development with a sudden stop, due to their lower body weight and hence shorter cephalic growth.La heterocronía consiste en los cambios evolutivos a lo largo del desarrollo, e incluyen los fenómenos de neotenia, recapitulación, pedogénesis, retardo progénesis, etc. A fin de detectar procesos heterocrónicas y diferenciarlos, se procedió a estudiar 291 cadáveres frescos de conejos domésticos de diferente aptitud (73 del tipo “belier”, 112 del tipo “toy” y 71 de tipo carnicero), comparándolos con 35 de conejo silvestre ((Oryctolagus cuniculus). De cada animal se obtuvieron las longitudes facial y cefálica con pie de rey. Por tipos, las rectas de regresión de la longitud facial versus la longitud craneal aparecieron homogéneas entre ellas, pero con inclinaciones estadísticamente muy diferentes y en todos los casos con pendientes alométricas excediendo de 1. Se interpretaría ello, pues, como una expresión clara de hipomorfosis en el caso de los “toy” (pendiente inferior al del silvestre), y de hipermorfosis para los carniceros (pendiente superior al del silvestre). Los silvestres, por su lado, presentaron un desarrollo que cesa pronto, fruto de su menor peso corporal y, por ende, con menor longitud cefálica final.Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria2020-06-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/1617810.15381/rivep.v31i2.16178Revista de Investigaciones Veterinarias del Perú; Vol. 31 Núm. 2 (2020); e16178Revista de Investigaciones Veterinarias del Perú; Vol. 31 No. 2 (2020); e161781682-34191609-9117reponame:Revistas - Universidad Nacional Mayor de San Marcosinstname:Universidad Nacional Mayor de San Marcosinstacron:UNMSMspahttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16178/15074Derechos de autor 2020 Pere M. Parés-Casanova, Khalil Sofiane, Anabel Medinahttps://creativecommons.org/licenses/by-nc-sa/4.0info:eu-repo/semantics/openAccessoai:ojs.csi.unmsm:article/161782020-06-23T14:46:03Z
dc.title.none.fl_str_mv Cephalic heterochronies in domestic rabbits: A first study
Heterocronías cefálicas en conejos domésticos: Un primer estudio
title Cephalic heterochronies in domestic rabbits: A first study
spellingShingle Cephalic heterochronies in domestic rabbits: A first study
Parés-Casanova, Pere M.
gerontomorphy
lagomorpha
Oryctolagus cuniculus
paedomorphy
gerontomorfia
lagomorpha
Oryctolagus cuniculus
pedomorfia
title_short Cephalic heterochronies in domestic rabbits: A first study
title_full Cephalic heterochronies in domestic rabbits: A first study
title_fullStr Cephalic heterochronies in domestic rabbits: A first study
title_full_unstemmed Cephalic heterochronies in domestic rabbits: A first study
title_sort Cephalic heterochronies in domestic rabbits: A first study
dc.creator.none.fl_str_mv Parés-Casanova, Pere M.
Sofiane, Khalil
Medina, Anabel
author Parés-Casanova, Pere M.
author_facet Parés-Casanova, Pere M.
Sofiane, Khalil
Medina, Anabel
author_role author
author2 Sofiane, Khalil
Medina, Anabel
author2_role author
author
dc.subject.none.fl_str_mv gerontomorphy
lagomorpha
Oryctolagus cuniculus
paedomorphy
gerontomorfia
lagomorpha
Oryctolagus cuniculus
pedomorfia
topic gerontomorphy
lagomorpha
Oryctolagus cuniculus
paedomorphy
gerontomorfia
lagomorpha
Oryctolagus cuniculus
pedomorfia
description Heterochrony is defined as the evolutionary changes in the timing of development, presenting a unified view of neoteny, recapitulation, paedogenesis, retardation, progenesis, etc. In order to detect processes of heterochrony and differentiate them, 291 fresh corpses of domestic rabbits of different purposes ("belier" type n=73, "toy" type n=112, meat type n=71) were studied, from which facial and cephalic lengths were obtained, and compared them with 35 wild rabbits (Oryctolagus cuniculus). The regression lines of facial length versus the cranial length appeared homogeneous among types, but slopes showed statistically different values and, in all cases, allometric coefficients exceeding 1. This would be interpreted as a clear expression of hypomorphoses for toy rabbits (slope was lower than that for wilds), but hypermorphosis for meat animals (slope was higher than that for wilds). Wild rabbit, on the other hand, presented a development with a sudden stop, due to their lower body weight and hence shorter cephalic growth.
publishDate 2020
dc.date.none.fl_str_mv 2020-06-20
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 https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16178
10.15381/rivep.v31i2.16178
url https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16178
identifier_str_mv 10.15381/rivep.v31i2.16178
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/16178/15074
dc.rights.none.fl_str_mv Derechos de autor 2020 Pere M. Parés-Casanova, Khalil Sofiane, Anabel Medina
https://creativecommons.org/licenses/by-nc-sa/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2020 Pere M. Parés-Casanova, Khalil Sofiane, Anabel Medina
https://creativecommons.org/licenses/by-nc-sa/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
publisher.none.fl_str_mv Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
dc.source.none.fl_str_mv Revista de Investigaciones Veterinarias del Perú; Vol. 31 Núm. 2 (2020); e16178
Revista de Investigaciones Veterinarias del Perú; Vol. 31 No. 2 (2020); e16178
1682-3419
1609-9117
reponame:Revistas - Universidad Nacional Mayor de San Marcos
instname:Universidad Nacional Mayor de San Marcos
instacron:UNMSM
instname_str Universidad Nacional Mayor de San Marcos
instacron_str UNMSM
institution UNMSM
reponame_str Revistas - Universidad Nacional Mayor de San Marcos
collection Revistas - Universidad Nacional Mayor de San Marcos
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 13.958958
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