Transcriptomics of Fish Sex Differentiation
Plant and Animal Genomics (PAG) Asia, 29-31 May 2017, Seoul, South Korea One way to increase the production of farmed fish is through exploitation of the fact that in many species one sex, usually females, grows faster than the other. Thus, for the production of monosex stocks, it is necessary first...
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ftcsic:oai:digital.csic.es:10261/179117 2024-02-11T10:08:27+01:00 Transcriptomics of Fish Sex Differentiation Piferrer, Francesc Ribas, Laia Sánchez Baizán, Núria Anastasiadi, Dafni Valdivieso, Alejandro Ministerio de Economía y Competitividad (España) 2017-05-29 http://hdl.handle.net/10261/179117 https://doi.org/10.13039/501100003329 unknown #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2016-78710-R https://pag.confex.com/pag/asia2017/meetingapp.cgi/Paper/27044 Sí Plant and Animal Genomics Asia (2017) http://hdl.handle.net/10261/179117 http://dx.doi.org/10.13039/501100003329 none comunicación de congreso http://purl.org/coar/resource_type/c_5794 2017 ftcsic https://doi.org/10.13039/501100003329 2024-01-16T10:37:48Z Plant and Animal Genomics (PAG) Asia, 29-31 May 2017, Seoul, South Korea One way to increase the production of farmed fish is through exploitation of the fact that in many species one sex, usually females, grows faster than the other. Thus, for the production of monosex stocks, it is necessary first to understand the process of sex differentiation in fish in order to achieve its control. Here, using a tropical species (zebrafish, Danio rerio), a temperate water species (European sea bass, Dicentrarchus labrax) and a cold water species (turbot, Scophthalmus maximus), we investigated common patterns of gene expression during sex differentiation and in response to heat. The genes and signaling pathways involved in ovarian and testicular differentiation are fairly conserved albeit with species-specific differences in their interaction and/or temporal expression. Likewise, exposure to heat has only moderate effects on males and the testis transcriptome. In contrast, elevated temperature can result in genetic females developing functional testis (neomales) with a normal male transcriptome and capable of producing viable sperm. This represents a mismatch between genotype and phenotype. In species with a simple chromosomal system of sex determination like the turbot (ZW/ZZ), neomales can be used to generate novel genotypes (WW, superfemales) to obtain the desired all-female stocks. Recently, we discovered that some heat-exposed zebrafish females have apparently normal ovaries but with a male transcriptome (pseudofemales). In this case, the mismatch is between form and function. However, the fate of pseudofemales, including whether they can produce viable gametes and of what sex is, at present, unknown Supported by MINECO AGL2016-78710-R grant to FP. Peer Reviewed Conference Object Scophthalmus maximus Turbot Digital.CSIC (Spanish National Research Council) |
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Plant and Animal Genomics (PAG) Asia, 29-31 May 2017, Seoul, South Korea One way to increase the production of farmed fish is through exploitation of the fact that in many species one sex, usually females, grows faster than the other. Thus, for the production of monosex stocks, it is necessary first to understand the process of sex differentiation in fish in order to achieve its control. Here, using a tropical species (zebrafish, Danio rerio), a temperate water species (European sea bass, Dicentrarchus labrax) and a cold water species (turbot, Scophthalmus maximus), we investigated common patterns of gene expression during sex differentiation and in response to heat. The genes and signaling pathways involved in ovarian and testicular differentiation are fairly conserved albeit with species-specific differences in their interaction and/or temporal expression. Likewise, exposure to heat has only moderate effects on males and the testis transcriptome. In contrast, elevated temperature can result in genetic females developing functional testis (neomales) with a normal male transcriptome and capable of producing viable sperm. This represents a mismatch between genotype and phenotype. In species with a simple chromosomal system of sex determination like the turbot (ZW/ZZ), neomales can be used to generate novel genotypes (WW, superfemales) to obtain the desired all-female stocks. Recently, we discovered that some heat-exposed zebrafish females have apparently normal ovaries but with a male transcriptome (pseudofemales). In this case, the mismatch is between form and function. However, the fate of pseudofemales, including whether they can produce viable gametes and of what sex is, at present, unknown Supported by MINECO AGL2016-78710-R grant to FP. Peer Reviewed |
author2 |
Ministerio de Economía y Competitividad (España) |
format |
Conference Object |
author |
Piferrer, Francesc Ribas, Laia Sánchez Baizán, Núria Anastasiadi, Dafni Valdivieso, Alejandro |
spellingShingle |
Piferrer, Francesc Ribas, Laia Sánchez Baizán, Núria Anastasiadi, Dafni Valdivieso, Alejandro Transcriptomics of Fish Sex Differentiation |
author_facet |
Piferrer, Francesc Ribas, Laia Sánchez Baizán, Núria Anastasiadi, Dafni Valdivieso, Alejandro |
author_sort |
Piferrer, Francesc |
title |
Transcriptomics of Fish Sex Differentiation |
title_short |
Transcriptomics of Fish Sex Differentiation |
title_full |
Transcriptomics of Fish Sex Differentiation |
title_fullStr |
Transcriptomics of Fish Sex Differentiation |
title_full_unstemmed |
Transcriptomics of Fish Sex Differentiation |
title_sort |
transcriptomics of fish sex differentiation |
publishDate |
2017 |
url |
http://hdl.handle.net/10261/179117 https://doi.org/10.13039/501100003329 |
genre |
Scophthalmus maximus Turbot |
genre_facet |
Scophthalmus maximus Turbot |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2016-78710-R https://pag.confex.com/pag/asia2017/meetingapp.cgi/Paper/27044 Sí Plant and Animal Genomics Asia (2017) http://hdl.handle.net/10261/179117 http://dx.doi.org/10.13039/501100003329 |
op_rights |
none |
op_doi |
https://doi.org/10.13039/501100003329 |
_version_ |
1790607795018530816 |