Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability

Autores
Aznar Avendaño, Francisco Javier; Crespo, Enrique Alberto; Raga, Juan A.; Hernández Orts, Jesús Servando
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Adults of the acanthocephalan Corynosoma cetaceum deeply attach to the stomach of dolphins using the proboscis and its spiny foretrunk as a disk while the spiny hindtrunk bends to also embed its ventral spines. During deep attachment, two ventral folds of tegument, anterior and posterior, are created. Spine growth is inhibited to a variable degree in folds, generating an extraordinary phenotypic variability, with most individuals, especially females, having folds partially or totally devoid of spines. Little is known on how this variability is generated and why it is not apparently found in other Corynosoma spp. In this paper, we examined the trunk armature of 77 and 388 cystacanth larvae of C. cetaceum and C. australe, respectively, from teleosts, and over 8800 adult specimens of C. australe, C. bullosum, C. cetaceum, C. strumosum, C. villosum and C. wegeneri from marine mammals. Cystacanths and adults of C. cetaceum exhibited the same range of fold spine reduction and variability, suggesting that they are generated prior to the adult stage (i.e., before spines are functional) and do not result from phenotypic plasticity. The other Corynosoma species analyzed created only the anterior fold during deep attachment, but it was always spined. Females of C. cetaceum had significantly larger foretrunk and hindtrunk spines than the other species and likely suffer stronger fold compression during deep attachment. The exceptional colonization of a harsh microhabitat, the stomach, could have generated a trade-off in C. cetaceum, which must bend the trunk to attach (as other Corynosoma spp.) but must also produce large spines that, in the folds, presumably are maladaptive and must be reduced.
Fil: Aznar Avendaño, Francisco Javier. Universidad de Valencia; España
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Raga, Juan A.. Universidad de Valencia; España
Fil: Hernández Orts, Jesús Servando. Universidad Nacional Autonoma de Mexico. Instituto de Biologia. Departamento de Zoología.; México
Materia
CORYNOSOMA
ACANTHOCEPHALAN
PHENOTYPIC VARIABILITY
ATTACHMENT
SPINE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/107610
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/107610
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variabilityAznar Avendaño, Francisco JavierCrespo, Enrique AlbertoRaga, Juan A.Hernández Orts, Jesús ServandoCORYNOSOMAACANTHOCEPHALANPHENOTYPIC VARIABILITYATTACHMENTSPINEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Adults of the acanthocephalan Corynosoma cetaceum deeply attach to the stomach of dolphins using the proboscis and its spiny foretrunk as a disk while the spiny hindtrunk bends to also embed its ventral spines. During deep attachment, two ventral folds of tegument, anterior and posterior, are created. Spine growth is inhibited to a variable degree in folds, generating an extraordinary phenotypic variability, with most individuals, especially females, having folds partially or totally devoid of spines. Little is known on how this variability is generated and why it is not apparently found in other Corynosoma spp. In this paper, we examined the trunk armature of 77 and 388 cystacanth larvae of C. cetaceum and C. australe, respectively, from teleosts, and over 8800 adult specimens of C. australe, C. bullosum, C. cetaceum, C. strumosum, C. villosum and C. wegeneri from marine mammals. Cystacanths and adults of C. cetaceum exhibited the same range of fold spine reduction and variability, suggesting that they are generated prior to the adult stage (i.e., before spines are functional) and do not result from phenotypic plasticity. The other Corynosoma species analyzed created only the anterior fold during deep attachment, but it was always spined. Females of C. cetaceum had significantly larger foretrunk and hindtrunk spines than the other species and likely suffer stronger fold compression during deep attachment. The exceptional colonization of a harsh microhabitat, the stomach, could have generated a trade-off in C. cetaceum, which must bend the trunk to attach (as other Corynosoma spp.) but must also produce large spines that, in the folds, presumably are maladaptive and must be reduced.Fil: Aznar Avendaño, Francisco Javier. Universidad de Valencia; EspañaFil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Raga, Juan A.. Universidad de Valencia; EspañaFil: Hernández Orts, Jesús Servando. Universidad Nacional Autonoma de Mexico. Instituto de Biologia. Departamento de Zoología.; MéxicoSpringer2015-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/107610Aznar Avendaño, Francisco Javier; Crespo, Enrique Alberto; Raga, Juan A.; Hernández Orts, Jesús Servando; Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability; Springer; Zoomorphology (Berlin Print); 135; 11-2015; 19-310720-213X1432-234XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00435-015-0290-7info:eu-repo/semantics/altIdentifier/doi/10.1007/s00435-015-0290-7info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:57:22Zoai:ri.conicet.gov.ar:11336/107610instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:57:22.909CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability
title Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability
spellingShingle Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability
Aznar Avendaño, Francisco Javier
CORYNOSOMA
ACANTHOCEPHALAN
PHENOTYPIC VARIABILITY
ATTACHMENT
SPINE
title_short Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability
title_full Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability
title_fullStr Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability
title_full_unstemmed Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability
title_sort Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability
dc.creator.none.fl_str_mv Aznar Avendaño, Francisco Javier
Crespo, Enrique Alberto
Raga, Juan A.
Hernández Orts, Jesús Servando
author Aznar Avendaño, Francisco Javier
author_facet Aznar Avendaño, Francisco Javier
Crespo, Enrique Alberto
Raga, Juan A.
Hernández Orts, Jesús Servando
author_role author
author2 Crespo, Enrique Alberto
Raga, Juan A.
Hernández Orts, Jesús Servando
author2_role author
author
author
dc.subject.none.fl_str_mv CORYNOSOMA
ACANTHOCEPHALAN
PHENOTYPIC VARIABILITY
ATTACHMENT
SPINE
topic CORYNOSOMA
ACANTHOCEPHALAN
PHENOTYPIC VARIABILITY
ATTACHMENT
SPINE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Adults of the acanthocephalan Corynosoma cetaceum deeply attach to the stomach of dolphins using the proboscis and its spiny foretrunk as a disk while the spiny hindtrunk bends to also embed its ventral spines. During deep attachment, two ventral folds of tegument, anterior and posterior, are created. Spine growth is inhibited to a variable degree in folds, generating an extraordinary phenotypic variability, with most individuals, especially females, having folds partially or totally devoid of spines. Little is known on how this variability is generated and why it is not apparently found in other Corynosoma spp. In this paper, we examined the trunk armature of 77 and 388 cystacanth larvae of C. cetaceum and C. australe, respectively, from teleosts, and over 8800 adult specimens of C. australe, C. bullosum, C. cetaceum, C. strumosum, C. villosum and C. wegeneri from marine mammals. Cystacanths and adults of C. cetaceum exhibited the same range of fold spine reduction and variability, suggesting that they are generated prior to the adult stage (i.e., before spines are functional) and do not result from phenotypic plasticity. The other Corynosoma species analyzed created only the anterior fold during deep attachment, but it was always spined. Females of C. cetaceum had significantly larger foretrunk and hindtrunk spines than the other species and likely suffer stronger fold compression during deep attachment. The exceptional colonization of a harsh microhabitat, the stomach, could have generated a trade-off in C. cetaceum, which must bend the trunk to attach (as other Corynosoma spp.) but must also produce large spines that, in the folds, presumably are maladaptive and must be reduced.
Fil: Aznar Avendaño, Francisco Javier. Universidad de Valencia; España
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Raga, Juan A.. Universidad de Valencia; España
Fil: Hernández Orts, Jesús Servando. Universidad Nacional Autonoma de Mexico. Instituto de Biologia. Departamento de Zoología.; México
description Adults of the acanthocephalan Corynosoma cetaceum deeply attach to the stomach of dolphins using the proboscis and its spiny foretrunk as a disk while the spiny hindtrunk bends to also embed its ventral spines. During deep attachment, two ventral folds of tegument, anterior and posterior, are created. Spine growth is inhibited to a variable degree in folds, generating an extraordinary phenotypic variability, with most individuals, especially females, having folds partially or totally devoid of spines. Little is known on how this variability is generated and why it is not apparently found in other Corynosoma spp. In this paper, we examined the trunk armature of 77 and 388 cystacanth larvae of C. cetaceum and C. australe, respectively, from teleosts, and over 8800 adult specimens of C. australe, C. bullosum, C. cetaceum, C. strumosum, C. villosum and C. wegeneri from marine mammals. Cystacanths and adults of C. cetaceum exhibited the same range of fold spine reduction and variability, suggesting that they are generated prior to the adult stage (i.e., before spines are functional) and do not result from phenotypic plasticity. The other Corynosoma species analyzed created only the anterior fold during deep attachment, but it was always spined. Females of C. cetaceum had significantly larger foretrunk and hindtrunk spines than the other species and likely suffer stronger fold compression during deep attachment. The exceptional colonization of a harsh microhabitat, the stomach, could have generated a trade-off in C. cetaceum, which must bend the trunk to attach (as other Corynosoma spp.) but must also produce large spines that, in the folds, presumably are maladaptive and must be reduced.
publishDate 2015
dc.date.none.fl_str_mv 2015-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/107610
Aznar Avendaño, Francisco Javier; Crespo, Enrique Alberto; Raga, Juan A.; Hernández Orts, Jesús Servando; Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability; Springer; Zoomorphology (Berlin Print); 135; 11-2015; 19-31
0720-213X
1432-234X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/107610
identifier_str_mv Aznar Avendaño, Francisco Javier; Crespo, Enrique Alberto; Raga, Juan A.; Hernández Orts, Jesús Servando; Trunk spines in cystacanths and adults of Corynosoma spp. (Acanthocephala): Corynosoma cetaceum as an exceptional case of phenotypic variability; Springer; Zoomorphology (Berlin Print); 135; 11-2015; 19-31
0720-213X
1432-234X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00435-015-0290-7
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00435-015-0290-7
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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