First record of intersexuality in the Amazon River shrimp Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae)

Detalhes bibliográficos
Autor(a) principal: Paschoal, Lucas R. P. [UNESP]
Data de Publicação: 2017
Outros Autores: Zara, Fernando J. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1093/jcbiol/rux049
http://hdl.handle.net/11449/170686
Resumo: Intersexuality in a gonochoric palaemonid shrimp is reported for the first time in a wild population of Macrobrachium amazonicum (Heller, 1862). This phenomenon was confirmed based on an investigation of anatomic and morphometric traits and the ultrastructure of gonopores. The intersex had both reproductive organs despite the absence of vitellogenic oocytes and spermatozoa. This individual had a vestigial male gonopore complex and female gonopores. The intersexuality was related to a genetic mutation and/or hormonal disruption because there was no detection of chemicals in the water or parasites in the samples. Non-functional hermaphroditism is a very rare event (0.06%) in M. amazonicum, indicating that this species is gonochoric, and intersex individuals are not reproductively viable.
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spelling First record of intersexuality in the Amazon River shrimp Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae)GonoporesMorphologyNon-functional hermaphroditismUltrastructureIntersexuality in a gonochoric palaemonid shrimp is reported for the first time in a wild population of Macrobrachium amazonicum (Heller, 1862). This phenomenon was confirmed based on an investigation of anatomic and morphometric traits and the ultrastructure of gonopores. The intersex had both reproductive organs despite the absence of vitellogenic oocytes and spermatozoa. This individual had a vestigial male gonopore complex and female gonopores. The intersexuality was related to a genetic mutation and/or hormonal disruption because there was no detection of chemicals in the water or parasites in the samples. Non-functional hermaphroditism is a very rare event (0.06%) in M. amazonicum, indicating that this species is gonochoric, and intersex individuals are not reproductively viable.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Universidade Estadual Paulista (UNESP)Invertebrate Morphology Laboratory (IML) Departamento de Biologia Aplicada Universidade Estadual Paulista (UNESP)Universidade Estadual Paulista (UNESP)Invertebrate Morphology Laboratory (IML) Departamento de Biologia Aplicada Universidade Estadual Paulista (UNESP)Universidade Estadual Paulista (Unesp)Paschoal, Lucas R. P. [UNESP]Zara, Fernando J. [UNESP]2018-12-11T16:51:59Z2018-12-11T16:51:59Z2017-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article507-511application/pdfhttp://dx.doi.org/10.1093/jcbiol/rux049Journal of Crustacean Biology, v. 37, n. 4, p. 507-511, 2017.1937-240X0278-0372http://hdl.handle.net/11449/17068610.1093/jcbiol/rux0492-s2.0-850423161042-s2.0-85042316104.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Crustacean Biology0,445info:eu-repo/semantics/openAccess2023-11-28T06:11:44Zoai:repositorio.unesp.br:11449/170686Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-28T06:11:44Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv First record of intersexuality in the Amazon River shrimp Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae)
title First record of intersexuality in the Amazon River shrimp Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae)
spellingShingle First record of intersexuality in the Amazon River shrimp Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae)
Paschoal, Lucas R. P. [UNESP]
Gonopores
Morphology
Non-functional hermaphroditism
Ultrastructure
title_short First record of intersexuality in the Amazon River shrimp Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae)
title_full First record of intersexuality in the Amazon River shrimp Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae)
title_fullStr First record of intersexuality in the Amazon River shrimp Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae)
title_full_unstemmed First record of intersexuality in the Amazon River shrimp Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae)
title_sort First record of intersexuality in the Amazon River shrimp Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae)
author Paschoal, Lucas R. P. [UNESP]
author_facet Paschoal, Lucas R. P. [UNESP]
Zara, Fernando J. [UNESP]
author_role author
author2 Zara, Fernando J. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Paschoal, Lucas R. P. [UNESP]
Zara, Fernando J. [UNESP]
dc.subject.por.fl_str_mv Gonopores
Morphology
Non-functional hermaphroditism
Ultrastructure
topic Gonopores
Morphology
Non-functional hermaphroditism
Ultrastructure
description Intersexuality in a gonochoric palaemonid shrimp is reported for the first time in a wild population of Macrobrachium amazonicum (Heller, 1862). This phenomenon was confirmed based on an investigation of anatomic and morphometric traits and the ultrastructure of gonopores. The intersex had both reproductive organs despite the absence of vitellogenic oocytes and spermatozoa. This individual had a vestigial male gonopore complex and female gonopores. The intersexuality was related to a genetic mutation and/or hormonal disruption because there was no detection of chemicals in the water or parasites in the samples. Non-functional hermaphroditism is a very rare event (0.06%) in M. amazonicum, indicating that this species is gonochoric, and intersex individuals are not reproductively viable.
publishDate 2017
dc.date.none.fl_str_mv 2017-07-01
2018-12-11T16:51:59Z
2018-12-11T16:51:59Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1093/jcbiol/rux049
Journal of Crustacean Biology, v. 37, n. 4, p. 507-511, 2017.
1937-240X
0278-0372
http://hdl.handle.net/11449/170686
10.1093/jcbiol/rux049
2-s2.0-85042316104
2-s2.0-85042316104.pdf
url http://dx.doi.org/10.1093/jcbiol/rux049
http://hdl.handle.net/11449/170686
identifier_str_mv Journal of Crustacean Biology, v. 37, n. 4, p. 507-511, 2017.
1937-240X
0278-0372
10.1093/jcbiol/rux049
2-s2.0-85042316104
2-s2.0-85042316104.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Crustacean Biology
0,445
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 507-511
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1803046693695913984

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