Results 21 to 30 of about 65,172 (249)
Sex Reversal in Amphibians [PDF]
Sexual Development, 2016 Amphibians have been widely used to study developmental biology due to the fact that embryo development takes place independently of the maternal organism and that observations and experimental approaches are easy. Some amphibians like <i>Xenopus</i> became model organisms in this field.
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Epigenetics, 2022 Exogenous oestrogen 17β-oestradiol (E2) has been shown to effectively induce feminization in teleosts. However, the molecular mechanisms underlying the process remain unclear.
Wenwen Wang +11 more
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Sex Reversal in Copepods [PDF]
Nature, 1948 BETWEEN February and June 1947, 20·5 per cent of the males, 3·7 per cent of the females and 0·3 per cent of the copepodids of Pseudocalanus elongatus Boeck, collected from six stations between Flamborough Head and the Dogger Bank, were found to be parasitized by Blastodinium contortum hyalinum Chatton. Almost all the observed parasites were found to be
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Rescuing the aberrant sex development of H3K9 demethylase Jmjd1a-deficient mice by modulating H3K9 methylation balance. [PDF]
PLoS Genetics, 2017 Histone H3 lysine 9 (H3K9) methylation is a hallmark of heterochromatin. H3K9 demethylation is crucial in mouse sex determination; The H3K9 demethylase Jmjd1a deficiency leads to increased H3K9 methylation at the Sry locus in embryonic gonads, thereby ...
Shunsuke Kuroki +11 more
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Scientific Reports, 2021 Cognitive flexibility describes the ability of animals to alter cognitively mediated behaviour in response to changing situational demands, and can vary according to prevailing environemental conditions and individual caracteristics. In the present study,
Céline Rochais +2 more
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G3: Genes, Genomes, Genetics, 2017 Sex determination is a fundamental biological process for individual sex development and population sex ratios. However, for some species, the primary sex might be altered during development, and individuals can develop into the opposite sex.
Li Jiang, Hengde Li
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Clinical Case Reports, 2021 Two siblings with the same male unbalanced karyotype demonstrate sex reversal. The older sib appeared phenotypically female and the younger sib demonstrated a male gender. The female had gonadal dysgenesis with bilateral ovatestes. The male had bilateral
Susan Cordes Selby +7 more
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Neuroendocrinology of Sex-Role Reversal [PDF]
Integrative and Comparative Biology, 2020 Synopsis Females of some species are considered sex-role reversed, meaning that they face stronger competition for mates compared to males. While much attention has been paid to behavioral and morphological patterns associated with sex-role reversal, less is known about its physiological regulation.
Sara E Lipshutz, Kimberly A Rosvall
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Asymmetrical sex reversal: does the type of heterogamety predict propensity for sex reversal? [PDF]
BioEssays, 2022 Sex reversal, a mismatch between phenotypic and genetic sex, can be induced by chemical and thermal insults in ectotherms. Therefore, climate change and environmental pollution may increase sex-reversal frequency in wild populations, with wide-ranging implications for sex ratios, population dynamics, and the evolution of sex determination.
Edina Nemesházi, Veronika Bókony
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Sex Reversal in Vertebrates [PDF]
, 2016 This special topic issue of Sexual Development gives an overview of sex reversal in vertebrates, from fishes naturally changing their sex, to rodents escaping the mammalian SRY-determining system. It offers eight up-to-date reviews on specific subjects in sex reversal, considering fishes, amphibians, reptiles, birds, marsupials, and placental mammals ...
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