Genetic architecture of sex determination in fish: Applications to sex ratio control in aquaculture
This article is part of the Research Topic Genomics in aquaculture to better understand species biology and accelerate genetic progress.-- 13 pages, 3 figures
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Subjects: | Sex ratio, Genetic architecture, Fish, Sex determination, Aquaculture, |
Online Access: | http://hdl.handle.net/10261/108873 |
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dig-icm-es-10261-1088732021-12-28T16:46:02Z Genetic architecture of sex determination in fish: Applications to sex ratio control in aquaculture Martínez, Paulino Viñas, Ana Sánchez, Laura Díaz, Noelia Ribas, Laia Piferrer, Francesc Sex ratio Genetic architecture Fish Sex determination Aquaculture This article is part of the Research Topic Genomics in aquaculture to better understand species biology and accelerate genetic progress.-- 13 pages, 3 figures Controlling the sex ratio is essential in finfish farming. A balanced sex ratio is usually good for broodstock management, since it enables to develop appropriate breeding schemes. However, in some species the production of monosex populations is desirable because the existence of sexual dimorphism, primarily in growth or first time of sexual maturation, but also in color or shape, can render one sex more valuable. The knowledge of the genetic architecture of sex determination (SD) is convenient for controlling sex ratio and for the implementation of breeding programs. Unlike mammals and birds, which show highly conserved master genes that control a conserved genetic network responsible for gonad differentiation (GD), a huge diversity of SD mechanisms has been reported in fish. Despite theory predictions, more than one gene is in many cases involved in fish SD and genetic differences have been observed in the GD network. Environmental factors also play a relevant role and epigenetic mechanisms are becoming increasingly recognized for the establishment and maintenance of the GD pathways. Although major genetic factors are frequently involved in fish SD, these observations strongly suggest that SD in this group resembles a complex trait. Accordingly, the application of quantitative genetics combined with genomic tools is desirable to address its study and in fact, when applied, it has frequently demonstrated a multigene trait interacting with environmental factors in model and cultured fish species. This scenario has notable implications for aquaculture and, depending upon the species, from chromosome manipulation or environmental control techniques up to classical selection or marker assisted selection programs, are being applied. In this review, we selected four relevant species or fish groups to illustrate this diversity and hence the technologies that can be used by the industry for the control of sex ratio: turbot and European sea bass, two reference species of the European aquaculture, and salmonids and tilapia, representing the fish for which there are well established breeding programs This research work was supported by the Spanish Government (Consolider Ingenio Aquagenomics: CSD2007-00002 project) and Spanish Ministerio de Ciencia e Innovación (AGL2009-13273 and AGL2010-15939) projects to Paulino Martínez and Francesc Piferrer Peer Reviewed 2014-09-29 2014-12-18T11:58:15Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.3389/fgene.2014.00340 issn: 1664-8021 e-issn: 1664-8021 Frontiers in Genetics 5 (2014) http://hdl.handle.net/10261/108873 10.3389/fgene.2014.00340 25324858 https://doi.org/10.3389/fgene.2014.00340 open Frontiers Media |
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Sex ratio Genetic architecture Fish Sex determination Aquaculture Sex ratio Genetic architecture Fish Sex determination Aquaculture |
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Sex ratio Genetic architecture Fish Sex determination Aquaculture Sex ratio Genetic architecture Fish Sex determination Aquaculture Martínez, Paulino Viñas, Ana Sánchez, Laura Díaz, Noelia Ribas, Laia Piferrer, Francesc Genetic architecture of sex determination in fish: Applications to sex ratio control in aquaculture |
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This article is part of the Research Topic Genomics in aquaculture to better understand species biology and accelerate genetic progress.-- 13 pages, 3 figures |
format |
artículo |
topic_facet |
Sex ratio Genetic architecture Fish Sex determination Aquaculture |
author |
Martínez, Paulino Viñas, Ana Sánchez, Laura Díaz, Noelia Ribas, Laia Piferrer, Francesc |
author_facet |
Martínez, Paulino Viñas, Ana Sánchez, Laura Díaz, Noelia Ribas, Laia Piferrer, Francesc |
author_sort |
Martínez, Paulino |
title |
Genetic architecture of sex determination in fish: Applications to sex ratio control in aquaculture |
title_short |
Genetic architecture of sex determination in fish: Applications to sex ratio control in aquaculture |
title_full |
Genetic architecture of sex determination in fish: Applications to sex ratio control in aquaculture |
title_fullStr |
Genetic architecture of sex determination in fish: Applications to sex ratio control in aquaculture |
title_full_unstemmed |
Genetic architecture of sex determination in fish: Applications to sex ratio control in aquaculture |
title_sort |
genetic architecture of sex determination in fish: applications to sex ratio control in aquaculture |
publisher |
Frontiers Media |
url |
http://hdl.handle.net/10261/108873 |
work_keys_str_mv |
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