Bicaudal C is required for the function of the follicular epithelium during oogenesis in Rhodnius prolixus

The morphology and physiology of the oogenesis have been well studied in the vector of Chagas disease Rhodnius prolixus. However, the molecular interactions that regulate the process of egg formation, key for the reproductive cycle of the vector, is still largely unknown. In order to understand the...

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Main Authors: Pascual, Agustina, Vilardo, Emiliano Salvador, Taibo, Catalina Beatriz, Sabio Y Garcia, Julia Veronica, Rivera Pomar, Rolando
Format: Artículo
Language:Inglés
Published: Springer 2021
Subjects:
Online Access:http://hdl.handle.net/20.500.12123/10896
https://link.springer.com/article/10.1007%2Fs00427-021-00673-0
https://doi.org/10.1007/s00427-021-00673-0
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author Pascual, Agustina
Vilardo, Emiliano Salvador
Taibo, Catalina Beatriz
Sabio Y Garcia, Julia Veronica
Rivera Pomar, Rolando
author_browse Pascual, Agustina
Rivera Pomar, Rolando
Sabio Y Garcia, Julia Veronica
Taibo, Catalina Beatriz
Vilardo, Emiliano Salvador
author_facet Pascual, Agustina
Vilardo, Emiliano Salvador
Taibo, Catalina Beatriz
Sabio Y Garcia, Julia Veronica
Rivera Pomar, Rolando
author_sort Pascual, Agustina
collection INTA Digital
description The morphology and physiology of the oogenesis have been well studied in the vector of Chagas disease Rhodnius prolixus. However, the molecular interactions that regulate the process of egg formation, key for the reproductive cycle of the vector, is still largely unknown. In order to understand the molecular and cellular basis of the oogenesis, we examined the function of the gene Bicaudal C (BicC) during oogenesis and early development of R. prolixus. We show that R. prolixus BicC (Rp-BicC) gene is expressed in the germarium, with cytoplasmic distribution, as well as in the follicular epithelium of the developing oocytes. RNAi silencing of Rp-BicC resulted in sterile females that lay few, small, non-viable eggs. The ovaries are reduced in size and show a disarray of the follicular epithelium. This indicates that Rp-BicC has a central role in the regulation of oogenesis. Although the follicular cells are able to form the chorion, the uptake of vitelline by the oocytes is compromised. We show evidence that the polarity of the follicular epithelium and the endocytic pathway, which are crucial for the proper yolk deposition, are affected. This study provides insights into the molecular mechanisms underlying oocyte development and show that Rp-BicC is important for de developmental of the egg and, therefore, a key player in the reproduction of this insect.
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spelling INTA108962022-08-12T13:52:41Z Bicaudal C is required for the function of the follicular epithelium during oogenesis in Rhodnius prolixus Pascual, Agustina Vilardo, Emiliano Salvador Taibo, Catalina Beatriz Sabio Y Garcia, Julia Veronica Rivera Pomar, Rolando Oogénesis Rhodnius prolixus Desarrollo Embrionario Vitelogénesis Oogenesis Embryonic Development Vitellogenesis Bicaudal C The morphology and physiology of the oogenesis have been well studied in the vector of Chagas disease Rhodnius prolixus. However, the molecular interactions that regulate the process of egg formation, key for the reproductive cycle of the vector, is still largely unknown. In order to understand the molecular and cellular basis of the oogenesis, we examined the function of the gene Bicaudal C (BicC) during oogenesis and early development of R. prolixus. We show that R. prolixus BicC (Rp-BicC) gene is expressed in the germarium, with cytoplasmic distribution, as well as in the follicular epithelium of the developing oocytes. RNAi silencing of Rp-BicC resulted in sterile females that lay few, small, non-viable eggs. The ovaries are reduced in size and show a disarray of the follicular epithelium. This indicates that Rp-BicC has a central role in the regulation of oogenesis. Although the follicular cells are able to form the chorion, the uptake of vitelline by the oocytes is compromised. We show evidence that the polarity of the follicular epithelium and the endocytic pathway, which are crucial for the proper yolk deposition, are affected. This study provides insights into the molecular mechanisms underlying oocyte development and show that Rp-BicC is important for de developmental of the egg and, therefore, a key player in the reproduction of this insect. Centro de Investigación en Ciencias Veterinarias y Agronómicas Fil: Pascual, Agustina. Universidad Nacional del Norte de la Provincia de Buenos Aires. Centro de Bioinvestigaciones; Argentina Fil: Pascual, Agustina. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Centro de Bioinvestigaciones; Argentina Fil: Vilardo, Emiliano Salvador. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro Regional de Estudios Genómicos; Argentina Fil: Taibo, Catalina Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigación en Ciencias Veterinarias y Agronómicas. Laboratorio Integral de Microscopía; Argentina Fil: Sabio Y Garcia, Julia Veronica. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigación en Ciencias Veterinarias y Agronómicas. Laboratorio Integral de Microscopía; Argentina Fil: Rivera Pomar, Rolando. Universidad Nacional del Norte de la Provincia de Buenos Aires. Centro de Bioinvestigaciones; Argentina Fil: Rivera Pomar, Rolando. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Centro de Bioinvestigaciones; Argentina Fil: Rivera Pomar, Rolando. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro Regional de Estudios Genómicos; Argentina 2021-12-13T14:48:46Z 2021-12-13T14:48:46Z 2021-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/10896 https://link.springer.com/article/10.1007%2Fs00427-021-00673-0 1432-041X 0949-944X https://doi.org/10.1007/s00427-021-00673-0 eng info:eu-repo/semantics/restrictedAccess application/pdf Springer Development Genes and Evolution 231 : 33-45. (2021)
spellingShingle Oogénesis
Rhodnius prolixus
Desarrollo Embrionario
Vitelogénesis
Oogenesis
Embryonic Development
Vitellogenesis
Bicaudal C
Pascual, Agustina
Vilardo, Emiliano Salvador
Taibo, Catalina Beatriz
Sabio Y Garcia, Julia Veronica
Rivera Pomar, Rolando
Bicaudal C is required for the function of the follicular epithelium during oogenesis in Rhodnius prolixus
title Bicaudal C is required for the function of the follicular epithelium during oogenesis in Rhodnius prolixus
title_full Bicaudal C is required for the function of the follicular epithelium during oogenesis in Rhodnius prolixus
title_fullStr Bicaudal C is required for the function of the follicular epithelium during oogenesis in Rhodnius prolixus
title_full_unstemmed Bicaudal C is required for the function of the follicular epithelium during oogenesis in Rhodnius prolixus
title_short Bicaudal C is required for the function of the follicular epithelium during oogenesis in Rhodnius prolixus
title_sort bicaudal c is required for the function of the follicular epithelium during oogenesis in rhodnius prolixus
topic Oogénesis
Rhodnius prolixus
Desarrollo Embrionario
Vitelogénesis
Oogenesis
Embryonic Development
Vitellogenesis
Bicaudal C
url http://hdl.handle.net/20.500.12123/10896
https://link.springer.com/article/10.1007%2Fs00427-021-00673-0
https://doi.org/10.1007/s00427-021-00673-0
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