... Sex reversal In their recent paper, entitled "With or without W? Molecular and cytogenetic markers are not sufficient for identification of environmentally-induced sex reversal in the bearded dragon", Ehl et al. [2021] demonstrate that a published PCR sex test developed for the bearded dragon...

...Yuta Sakae; Minoru Tanaka Animals determine their sex genetically (GSD: genetic sex determination) and/or environmentally (ESD: environmental sex determination). Medaka ( Oryzias latipes ) employ a XX/XY GSD system, however, they display female-to-male sex reversal in response to various...

...Jonika Edgecombe; Lara Urban; Erica V. Todd; Neil J. Gemmell Sex determination and differentiation varies widely across vertebrates, but is most dramatically diverse in fishes. Among fishes sex reversal and sex change are observed in 41 teleost families spanning 7 orders. These sex-changing fish...

... that temperature is related to the appearance of sex-reversed individuals in natural populations under conditions unrelated to environmental contaminants. According to this, temperature, through sex reversal (phenotypic sex opposed to genetic sex), could play an important role in the turnover of sex-determining...

...Francesc Piferrer; Dafni Anastasiadi Sex determination systems in vertebrates vary along a continuum from genetic (GSD) to environmental sex determination (ESD). Individuals that show a sexual phenotype opposite to their genotypic sex are called sex reversals. Aside from genetic elements...

... benefits. However, reports on the degree of sex reversal in Muscovy ducks are scarce. In this study, we obtained sex-reversed Muscovy ducks by injecting letrozole before sex differentiation. We analyzed the degree of sex reversal in Muscovy ducks in terms of hormone levels, gonadal tissue development...

...Jean-François Baroiller; Helena D'Cotta Fish sex reversal is a means to understand sex determination and differentiation, but it is also used to control sex in aquaculture. This review discusses sex reversal in gonochoristic fish, with the coexistence of genetic and environmental influences...

...(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Epigenetics Phenotypic plasticity Sequential hermaphroditism Sex reversal Sexual plasticity Transcriptome...

... and laboratory-based evidence for the occurrence of environmental sex reversal in reptiles and ask whether this is a widespread evolutionary mechanism affecting the evolution of sex chromosomes and speciation in vertebrates. Sex determination systems exist across a continuum of genetic and environmental...

... of the body. However, recent studies on naturally occurring or experimentally induced avian sex reversal suggest a significant role for direct genetic factors, in addition to sex hormones, in regulating sexual differentiation of the soma in birds. This review will provide an overview of sex determination...

... female-to-male sex reversals as well as true hermaphrodites, in which there is a discrepancy between the chromosomal and gonadal sex. Here, we review known cases of XY and XX sex reversals described in mammals, focusing mostly on domestic animals where sex reversal pathologies occur and on wild species...

... investigated hormonally induced sex reversal and the expression patterns of genes associated with sex determination during early tadpole development. We found that sex reversal was easily induced in XX females and XY males of 2 forms (West-Japan and East-Japan) of G. rugosa with the ancestral homomorphic sex...

.... Copy number variation FISH Intersex Masculinization Sex reversal SRY Virilization Disorder of sex development Dog Testicular or ovotesticular disorder of sex development (DSD) in individuals with a female karyotype and a lack of the Y-linked SRY gene have been diagnosed in numerous...

... the complete sex reversal in X*Y individuals with no apparent sign of masculinization, providing an attractive model to unravel new gene interactions involved in the mammalian sex determination system. [email protected] 8 05 2014 29 10 2014 © 2014 S. Karger AG, Basel 2014...

... Ovary Sex determination Sex reversal Testis The development of the gonads differs from other organs as they have the potential to differentiate into 2 functionally distinct organs, testes or ovaries. Once functional gonads are formed, hormones released by either testes or ovaries lead...

... these advances with an eye on emerging themes in mammalian sex determination. A previous study reported XY gonadal sex reversal in triple knockout embryos lacking insulin receptor (INSR), IGF type I receptor (IGF1R) and insulin receptor-related receptor (IRR) [Nef et al., 2003]. This sex reversal...

.... Brain Genitalia Mammary gland Scrotum Sex differences Sex reversal Sexual dimorphisms X-linked genes Marsupials give birth to highly altricial young (fig. 1 ). They are born with bipotential gonads and reproductive tract. In the tammar, Macropus eugenii, seminiferous cords have started...

... oocyte stage. The sex reversal experiment has been described previously [Babiak et al., 2012]. In brief, Atlantic halibut post-metamorphic larvae (average T L = 30 mm), before gonadal differentiation [Hendry et al., 2002], were fed for 6 weeks a formulated diet supplemented with either 5 mg/kg feed...

... chromosome Sex-determination Sex reversal Steroid hormone The herbicide atrazine is widely used throughout the world. Atrazine is a potent endocrine disruptor that is active at low, ecologically-relevant concentrations and affects normal sexual development in frogs [Hayes et al., 2002a–c...

... and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. GSD Nile tilapia QTL Sex determination Sex reversal Temperature TSD The determination of sex in Nile...