First record of intersexuality in the Amazon River shrimp Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae)
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | |
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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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:29462024-08-05T18:54:51.217329Repositório 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_ |
1808128998665879552 |