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Fish Gonadogenesis. Part I: Genetic and Environmental Mechanisms of Sex Determination

AutorPenman, David; Piferrer, Francesc
Palabras claveSex ratio
Sex chromosomes
Sex-determining loci
Sex-specific markers
Sex-linked markers
Environmental sex determination
Temperature-dependent sex determination
Fecha de publicaciónoct-2008
EditorTaylor & Francis
CitaciónReviews in Fisheries Science 16(S1): 14-32 (2008)
ResumenMany species of fish produced in aquaculture or for the ornamental fish trade exhibit sexual dimorphism in growth, age at maturity, secondary sexual characters, or other traits of interest. This has led to a desire to produce populations of only one sex for commercial ongrowing. Although direct sex reversal via manipulation of sex differentiation is used commercially (e.g., in tilapia aquaculture), in most cases there is a need to understand the sex determination system to some extent and manipulate this to produce monosex fish. Sex determination is the genetic or environmental process that establishes the sex (gender) of an organism, whereas sex differentiation is the process by which an undifferentiated gonad is transformed into an ovary or a testis. Fish are the most diverse group of vertebrates in terms of sex determination, and the number of fish species of interest to aquaculture keeps increasing. Together, these aspects explain the growing interest to understand how sex determination and differentiation produce the sex ratio. This review concentrates on recent research using the tools of molecular biology to broaden our understanding of the different aspects related to fish sex determination, both in model fish species and in species of commercial importance
Descripción31 pages, 1 figures, 2 tables
Versión del editorhttp://dx.doi.org/10.1080/10641260802324610
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