A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages

Detalhes bibliográficos
Autor(a) principal: Yoshizawa, Kazunori
Data de Publicação: 2018
Outros Autores: Kamimura, Yoshitaka, Lienhard, Charles, Ferreira, Rodrigo L., Blanke, Alexander
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/34336
Resumo: We report a functional switching valve within the female genitalia of the Brazilian cave insect Neotrogla. The valve complex is composed of two plate-like sclerites, a closure element, and in-and-outflow canals. Females have a penis-like intromittent organ to coercively anchor males and obtain voluminous semen. The semen is packed in a capsule, whose formation is initiated by seminal injection. It is not only used for fertilization but also consumed by the female as nutrition. The valve complex has two slots for insemination so that Neotrogla can continue mating while the first slot is occupied. In conjunction with the female penis, this switching valve is a morphological novelty enabling females to compete for seminal gifts in their nutrient-poor cave habitats through long copulation times and multiple seminal injections. The evolution of this switching valve may have been a prerequisite for the reversal of the intromittent organ in Neotrogla.
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spelling A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packagesInsectsMicron-scale biological structuresBrazilian cavesWe report a functional switching valve within the female genitalia of the Brazilian cave insect Neotrogla. The valve complex is composed of two plate-like sclerites, a closure element, and in-and-outflow canals. Females have a penis-like intromittent organ to coercively anchor males and obtain voluminous semen. The semen is packed in a capsule, whose formation is initiated by seminal injection. It is not only used for fertilization but also consumed by the female as nutrition. The valve complex has two slots for insemination so that Neotrogla can continue mating while the first slot is occupied. In conjunction with the female penis, this switching valve is a morphological novelty enabling females to compete for seminal gifts in their nutrient-poor cave habitats through long copulation times and multiple seminal injections. The evolution of this switching valve may have been a prerequisite for the reversal of the intromittent organ in Neotrogla.eLife Sciences Publications2019-05-21T20:44:11Z2019-05-21T20:44:11Z2018-10-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfYOSHIZAWA, K. et al. A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages. eLife, [S.l.], v. 7, p. 1-11, 2018. DOI: 10.7554/eLife.39563.http://repositorio.ufla.br/jspui/handle/1/34336eLifereponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessYoshizawa, KazunoriKamimura, YoshitakaLienhard, CharlesFerreira, Rodrigo L.Blanke, Alexandereng2019-05-21T20:44:12Zoai:localhost:1/34336Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-05-21T20:44:12Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages
title A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages
spellingShingle A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages
Yoshizawa, Kazunori
Insects
Micron-scale biological structures
Brazilian caves
title_short A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages
title_full A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages
title_fullStr A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages
title_full_unstemmed A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages
title_sort A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages
author Yoshizawa, Kazunori
author_facet Yoshizawa, Kazunori
Kamimura, Yoshitaka
Lienhard, Charles
Ferreira, Rodrigo L.
Blanke, Alexander
author_role author
author2 Kamimura, Yoshitaka
Lienhard, Charles
Ferreira, Rodrigo L.
Blanke, Alexander
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Yoshizawa, Kazunori
Kamimura, Yoshitaka
Lienhard, Charles
Ferreira, Rodrigo L.
Blanke, Alexander
dc.subject.por.fl_str_mv Insects
Micron-scale biological structures
Brazilian caves
topic Insects
Micron-scale biological structures
Brazilian caves
description We report a functional switching valve within the female genitalia of the Brazilian cave insect Neotrogla. The valve complex is composed of two plate-like sclerites, a closure element, and in-and-outflow canals. Females have a penis-like intromittent organ to coercively anchor males and obtain voluminous semen. The semen is packed in a capsule, whose formation is initiated by seminal injection. It is not only used for fertilization but also consumed by the female as nutrition. The valve complex has two slots for insemination so that Neotrogla can continue mating while the first slot is occupied. In conjunction with the female penis, this switching valve is a morphological novelty enabling females to compete for seminal gifts in their nutrient-poor cave habitats through long copulation times and multiple seminal injections. The evolution of this switching valve may have been a prerequisite for the reversal of the intromittent organ in Neotrogla.
publishDate 2018
dc.date.none.fl_str_mv 2018-10-16
2019-05-21T20:44:11Z
2019-05-21T20:44:11Z
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 YOSHIZAWA, K. et al. A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages. eLife, [S.l.], v. 7, p. 1-11, 2018. DOI: 10.7554/eLife.39563.
http://repositorio.ufla.br/jspui/handle/1/34336
identifier_str_mv YOSHIZAWA, K. et al. A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages. eLife, [S.l.], v. 7, p. 1-11, 2018. DOI: 10.7554/eLife.39563.
url http://repositorio.ufla.br/jspui/handle/1/34336
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://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 eLife Sciences Publications
publisher.none.fl_str_mv eLife Sciences Publications
dc.source.none.fl_str_mv eLife
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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