Testicular differentiation and development in South American catfish, surubim, Pseudoplatystoma fasciatum
In the species Pseudoplatystoma fasciatum the males are smaller than females. Thus, the objective of this study was to describe the process of testicular differentiation and provide tools for sex manipulation techniques aimed at improving the productivity of farming of sexually‐reversed females. Cor...
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| Veröffentlicht in: | Journal of applied ichthyology 2019-04, Vol.35 (2), p.529-540 |
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| creator | Valentin, Fernanda N. Nakaghi, Laura S. O. Batlouni, Sérgio R. do Nascimento, Nivaldo F. do Carmo Faria Paes, Maria Cristina da Silva, Regiane Manzini, Breno Yohana Corchuelo Chavarro, Sheryll Henrique Correa Assunção, Marcelo |
| description | In the species Pseudoplatystoma fasciatum the males are smaller than females. Thus, the objective of this study was to describe the process of testicular differentiation and provide tools for sex manipulation techniques aimed at improving the productivity of farming of sexually‐reversed females. Correlation between the length, age, sex rate and the stage of gonadal development were analyzed in this species from samples collected between 0 and 240 days post‐hatching. Testicular differentiation was divided into eight stages, based on the cellular and morphological characteristics of the gonad. The results showed that sexual differentiation has a greater correlation to the size than the age in this species. This study provides knowledge on the proliferation and distinctive arrangement of somatic cells, which enabled the early identification of the testis due to the presence of future fringes in the specimens. Testicular differentiation in P. fasciatum was histologically different from other species due to the proliferation and distribution of somatic cells in the regions that would originate the testicular tubules and sperm ducts. Meiosis began at a later stage in comparison with other species, therefore, it was not considered a criterion for early sexual characterization. It can be concluded that testicular differentiation in P. fasciatum occurs relatively early and this data can be used to improve sex inversion protocols and increase productivity in this species. |
| doi_str_mv | 10.1111/jai.13879 |
| format | Article |
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O. ; Batlouni, Sérgio R. ; do Nascimento, Nivaldo F. ; do Carmo Faria Paes, Maria ; Cristina da Silva, Regiane ; Manzini, Breno ; Yohana Corchuelo Chavarro, Sheryll ; Henrique Correa Assunção, Marcelo</creator><creatorcontrib>Valentin, Fernanda N. ; Nakaghi, Laura S. O. ; Batlouni, Sérgio R. ; do Nascimento, Nivaldo F. ; do Carmo Faria Paes, Maria ; Cristina da Silva, Regiane ; Manzini, Breno ; Yohana Corchuelo Chavarro, Sheryll ; Henrique Correa Assunção, Marcelo</creatorcontrib><description>In the species Pseudoplatystoma fasciatum the males are smaller than females. Thus, the objective of this study was to describe the process of testicular differentiation and provide tools for sex manipulation techniques aimed at improving the productivity of farming of sexually‐reversed females. Correlation between the length, age, sex rate and the stage of gonadal development were analyzed in this species from samples collected between 0 and 240 days post‐hatching. Testicular differentiation was divided into eight stages, based on the cellular and morphological characteristics of the gonad. The results showed that sexual differentiation has a greater correlation to the size than the age in this species. This study provides knowledge on the proliferation and distinctive arrangement of somatic cells, which enabled the early identification of the testis due to the presence of future fringes in the specimens. Testicular differentiation in P. fasciatum was histologically different from other species due to the proliferation and distribution of somatic cells in the regions that would originate the testicular tubules and sperm ducts. Meiosis began at a later stage in comparison with other species, therefore, it was not considered a criterion for early sexual characterization. It can be concluded that testicular differentiation in P. fasciatum occurs relatively early and this data can be used to improve sex inversion protocols and increase productivity in this species.</description><identifier>ISSN: 0175-8659</identifier><identifier>EISSN: 1439-0426</identifier><identifier>DOI: 10.1111/jai.13879</identifier><language>eng</language><publisher>Berlin: Wiley Subscription Services, Inc</publisher><subject>Agricultural production ; Catfish ; Cell proliferation ; Correlation ; Developmental stages ; Differentiation ; Ducts ; Females ; Freshwater fishes ; Gonads ; Hatching ; histology ; Males ; Meiosis ; Physical characteristics ; Productivity ; Proliferation ; Pseudoplatystoma fasciatum ; Sex ; Sex differentiation ; Somatic cells ; Species ; Spermatozoa ; Testes ; testicular tubules ; Tubules</subject><ispartof>Journal of applied ichthyology, 2019-04, Vol.35 (2), p.529-540</ispartof><rights>2019 Blackwell Verlag GmbH</rights><rights>Copyright © 2019 Blackwell Verlag GmbH</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3329-f7f342143d82125911d80ea80a8286451d8e69f4e58615b0fb93c1d49fae9b423</citedby><cites>FETCH-LOGICAL-c3329-f7f342143d82125911d80ea80a8286451d8e69f4e58615b0fb93c1d49fae9b423</cites><orcidid>0000-0002-8279-3758 ; 0000-0002-0515-3431</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fjai.13879$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fjai.13879$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Valentin, Fernanda N.</creatorcontrib><creatorcontrib>Nakaghi, Laura S. O.</creatorcontrib><creatorcontrib>Batlouni, Sérgio R.</creatorcontrib><creatorcontrib>do Nascimento, Nivaldo F.</creatorcontrib><creatorcontrib>do Carmo Faria Paes, Maria</creatorcontrib><creatorcontrib>Cristina da Silva, Regiane</creatorcontrib><creatorcontrib>Manzini, Breno</creatorcontrib><creatorcontrib>Yohana Corchuelo Chavarro, Sheryll</creatorcontrib><creatorcontrib>Henrique Correa Assunção, Marcelo</creatorcontrib><title>Testicular differentiation and development in South American catfish, surubim, Pseudoplatystoma fasciatum</title><title>Journal of applied ichthyology</title><description>In the species Pseudoplatystoma fasciatum the males are smaller than females. Thus, the objective of this study was to describe the process of testicular differentiation and provide tools for sex manipulation techniques aimed at improving the productivity of farming of sexually‐reversed females. Correlation between the length, age, sex rate and the stage of gonadal development were analyzed in this species from samples collected between 0 and 240 days post‐hatching. Testicular differentiation was divided into eight stages, based on the cellular and morphological characteristics of the gonad. The results showed that sexual differentiation has a greater correlation to the size than the age in this species. This study provides knowledge on the proliferation and distinctive arrangement of somatic cells, which enabled the early identification of the testis due to the presence of future fringes in the specimens. Testicular differentiation in P. fasciatum was histologically different from other species due to the proliferation and distribution of somatic cells in the regions that would originate the testicular tubules and sperm ducts. Meiosis began at a later stage in comparison with other species, therefore, it was not considered a criterion for early sexual characterization. It can be concluded that testicular differentiation in P. fasciatum occurs relatively early and this data can be used to improve sex inversion protocols and increase productivity in this species.</description><subject>Agricultural production</subject><subject>Catfish</subject><subject>Cell proliferation</subject><subject>Correlation</subject><subject>Developmental stages</subject><subject>Differentiation</subject><subject>Ducts</subject><subject>Females</subject><subject>Freshwater fishes</subject><subject>Gonads</subject><subject>Hatching</subject><subject>histology</subject><subject>Males</subject><subject>Meiosis</subject><subject>Physical characteristics</subject><subject>Productivity</subject><subject>Proliferation</subject><subject>Pseudoplatystoma fasciatum</subject><subject>Sex</subject><subject>Sex differentiation</subject><subject>Somatic cells</subject><subject>Species</subject><subject>Spermatozoa</subject><subject>Testes</subject><subject>testicular tubules</subject><subject>Tubules</subject><issn>0175-8659</issn><issn>1439-0426</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LAzEQhoMoWKsH_0HAk9Btk-xHk2MpVisFBes5ZLMJTdndrPlQ-u-NrlfnMszwzDszLwC3GM1xisVRmDnO6ZKdgQkucpahglTnYILwssxoVbJLcOX9ESGUmGoCzF75YGRshYON0Vo51QcjgrE9FH0DG_WpWjt0qQtND99sDAe46pQzUvRQiqCNP8ygjy7WppvBV69iY4dWhJMPthNQCy-TXuyuwYUWrVc3f3kK3jcP-_VTtnt53K5Xu0zmOWGZXuq8IOn0hhJMSoZxQ5ESFAlKaFWUqVQV04UqaYXLGuma5RI3BdNCsbog-RTcjbqDsx8xfcePNro-reQEM4YwIRQl6n6kpLPeO6X54Ewn3IljxH-c5MlJ_utkYhcj-2Vadfof5M-r7TjxDf9GdfQ</recordid><startdate>201904</startdate><enddate>201904</enddate><creator>Valentin, Fernanda N.</creator><creator>Nakaghi, Laura S. O.</creator><creator>Batlouni, Sérgio R.</creator><creator>do Nascimento, Nivaldo F.</creator><creator>do Carmo Faria Paes, Maria</creator><creator>Cristina da Silva, Regiane</creator><creator>Manzini, Breno</creator><creator>Yohana Corchuelo Chavarro, Sheryll</creator><creator>Henrique Correa Assunção, Marcelo</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SN</scope><scope>7TN</scope><scope>7U7</scope><scope>C1K</scope><scope>F1W</scope><orcidid>https://orcid.org/0000-0002-8279-3758</orcidid><orcidid>https://orcid.org/0000-0002-0515-3431</orcidid></search><sort><creationdate>201904</creationdate><title>Testicular differentiation and development in South American catfish, surubim, Pseudoplatystoma fasciatum</title><author>Valentin, Fernanda N. ; Nakaghi, Laura S. O. ; Batlouni, Sérgio R. ; do Nascimento, Nivaldo F. ; do Carmo Faria Paes, Maria ; Cristina da Silva, Regiane ; Manzini, Breno ; Yohana Corchuelo Chavarro, Sheryll ; Henrique Correa Assunção, Marcelo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3329-f7f342143d82125911d80ea80a8286451d8e69f4e58615b0fb93c1d49fae9b423</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Agricultural production</topic><topic>Catfish</topic><topic>Cell proliferation</topic><topic>Correlation</topic><topic>Developmental stages</topic><topic>Differentiation</topic><topic>Ducts</topic><topic>Females</topic><topic>Freshwater fishes</topic><topic>Gonads</topic><topic>Hatching</topic><topic>histology</topic><topic>Males</topic><topic>Meiosis</topic><topic>Physical characteristics</topic><topic>Productivity</topic><topic>Proliferation</topic><topic>Pseudoplatystoma fasciatum</topic><topic>Sex</topic><topic>Sex differentiation</topic><topic>Somatic cells</topic><topic>Species</topic><topic>Spermatozoa</topic><topic>Testes</topic><topic>testicular tubules</topic><topic>Tubules</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Valentin, Fernanda N.</creatorcontrib><creatorcontrib>Nakaghi, Laura S. O.</creatorcontrib><creatorcontrib>Batlouni, Sérgio R.</creatorcontrib><creatorcontrib>do Nascimento, Nivaldo F.</creatorcontrib><creatorcontrib>do Carmo Faria Paes, Maria</creatorcontrib><creatorcontrib>Cristina da Silva, Regiane</creatorcontrib><creatorcontrib>Manzini, Breno</creatorcontrib><creatorcontrib>Yohana Corchuelo Chavarro, Sheryll</creatorcontrib><creatorcontrib>Henrique Correa Assunção, Marcelo</creatorcontrib><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><jtitle>Journal of applied ichthyology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Valentin, Fernanda N.</au><au>Nakaghi, Laura S. O.</au><au>Batlouni, Sérgio R.</au><au>do Nascimento, Nivaldo F.</au><au>do Carmo Faria Paes, Maria</au><au>Cristina da Silva, Regiane</au><au>Manzini, Breno</au><au>Yohana Corchuelo Chavarro, Sheryll</au><au>Henrique Correa Assunção, Marcelo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Testicular differentiation and development in South American catfish, surubim, Pseudoplatystoma fasciatum</atitle><jtitle>Journal of applied ichthyology</jtitle><date>2019-04</date><risdate>2019</risdate><volume>35</volume><issue>2</issue><spage>529</spage><epage>540</epage><pages>529-540</pages><issn>0175-8659</issn><eissn>1439-0426</eissn><abstract>In the species Pseudoplatystoma fasciatum the males are smaller than females. Thus, the objective of this study was to describe the process of testicular differentiation and provide tools for sex manipulation techniques aimed at improving the productivity of farming of sexually‐reversed females. Correlation between the length, age, sex rate and the stage of gonadal development were analyzed in this species from samples collected between 0 and 240 days post‐hatching. Testicular differentiation was divided into eight stages, based on the cellular and morphological characteristics of the gonad. The results showed that sexual differentiation has a greater correlation to the size than the age in this species. This study provides knowledge on the proliferation and distinctive arrangement of somatic cells, which enabled the early identification of the testis due to the presence of future fringes in the specimens. Testicular differentiation in P. fasciatum was histologically different from other species due to the proliferation and distribution of somatic cells in the regions that would originate the testicular tubules and sperm ducts. Meiosis began at a later stage in comparison with other species, therefore, it was not considered a criterion for early sexual characterization. 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| subjects | Agricultural production Catfish Cell proliferation Correlation Developmental stages Differentiation Ducts Females Freshwater fishes Gonads Hatching histology Males Meiosis Physical characteristics Productivity Proliferation Pseudoplatystoma fasciatum Sex Sex differentiation Somatic cells Species Spermatozoa Testes testicular tubules Tubules |
| title | Testicular differentiation and development in South American catfish, surubim, Pseudoplatystoma fasciatum |
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