Results 41 to 50 of about 4,553,166 (361)

Sex differentiation in grayling (Salmonidae) goes through an all-male stage and is delayed in genetic males who instead grow faster. [PDF]

, 2017
Fish populations can be threatened by distorted sex ratios that arise during sex differentiation. Here we describe sex differentiation in a wild grayling (Thymallus thymallus) population that suffers from distorted sex ratios.
Castro, I., Knörr, S., Maitre, D., Marques da Cunha, L., Mobley, K.B., Robinson-Rechavi, M., Roux, J., Selmoni, O.M., Uppal, A., Wedekind, C., Wilkins, LGE   +10 more
core   +4 more sources

The "backdoor pathway" of androgen synthesis in human male sexual development. [PDF]

, 2019
Mammalian sex determination (male versus female) is largely controlled by genes, whereas sex differentiation (development of reproductive structures) is largely controlled by hormones. Work in the 20th century indicated that female external anatomy was a
Auchus, Richard J, Miller, Walter L
core   +2 more sources

Beyond a Binary Classification of Sex: An Examination of Brain Sex Differentiation, Psychopathology, and Genotype.

Journal of the American Academy of Child and Adolescent Psychiatry, 2019
OBJECTIVE Sex differences in the brain are traditionally treated as binary. We present new evidence that a continuous measure of sex differentiation of the brain can explain sex differences in psychopathology.
Owen R Phillips, Alexander K Onopa, V. Hsu, H. M. Ollila, Ryan P Hillary, J. Hallmayer, I. Gotlib, Jonathan Taylor, Lester W. Mackey, Manpreet K. Singh   +9 more
semanticscholar   +1 more source

Differential Expression of miRNAs, lncRNAs, and circRNAs between Ovaries and Testes in Common Carp (Cyprinus carpio)

Cells, 2023
Female common carp grow faster than male individuals, implying that rearing females could be more profitable in aquaculture. Non-coding RNAs (ncRNAs) serve as versatile regulators with multiple functions in diverse biological processes.
Mingxi Hou, Qi Wang, Jin Zhang, Ran Zhao, Yiming Cao, Shuangting Yu, Kaikuo Wang, Yingjie Chen, Ziyao Ma, Xiaoqing Sun, Yan Zhang, Jiongtang Li   +11 more
doaj   +1 more source

A clinical approach to diagnosis of ambiguous genitalia

Journal of Indian Association of Pediatric Surgeons, 2019
Disorders of sex development (DSD) are a sensitive and stressful condition for the family as well as the treating physician to deal with. The main issue in managing such cases is sex assignment.
Kashish Khanna, Shilpa Sharma, Devendra K Gupta   +2 more
doaj   +1 more source

Massive gene amplification on a recently formed Drosophila Y chromosome. [PDF]

, 2019
Widespread loss of genes on the Y is considered a hallmark of sex chromosome differentiation. Here we show that the initial stages of Y evolution are driven by massive amplification of distinct classes of genes. The neo-Y chromosome of Drosophila miranda
Bachtrog, Doris, Bracewell, Ryan, Mahajan, Shivani   +2 more
core   +1 more source

Can Individuals with 47,XYY Karyotypes Exist without Male Phenotype? A Narrative Literature Review and Case Report

Frontiers in Bioscience-Scholar
Background: The 47,XYY syndrome is a genetic condition found in about 1 in 1000 male children. The expected phenotype is male but could vary greatly.
Marcelo Jones Pires, Laura Coimbra Teixeira, Luise Longo Angeloni, Julia Londero Heleno, Mariana Romano, Marcio Lopes Miranda, Tarsis Paiva Vieira, Mara Sanches Guaragna, Beatriz Amstaldem Barros, Andréa Trevas Maciel-Guerra, Gil Guerra-Junior   +10 more
doaj   +1 more source

Genome-wide analysis of MADS-box gene family in kiwifruit (Actinidia chinensis var. chinensis) and their potential role in floral sex differentiation

Frontiers in Genetics, 2022
Kiwifruit (Actinidia chinensis Planch.) is a functionally dioecious plant, which displays diverse morphology in male and female flowers. MADS-box is an ancient and huge gene family that plays a key role in plant floral organ differentiation.
Li-Xia Ye, Min-Min Luo, Min-Min Luo, Zhi Wang, Fu-Xi Bai, Xuan Luo, Lei Gao, Jue Peng, Qing-Hong Chen, Lei Zhang   +9 more
doaj   +1 more source

ATRX and sex differentiation

Trends in Endocrinology & Metabolism, 2004
Most interest in the gene encoding the alpha-thalassemia, mental retardation, X-linked protein (ATRX) has traditionally been focused on its role in brain development and globin regulation. However, mutations in the ATRX gene also cause varying degrees of gonadal and urogenital abnormalities. These range from small testes to ambiguous external genitalia
Tang, Paisu, Park, Daniel J, Graves, Jennifer, Harding, Ruth E   +3 more
openaire   +3 more sources

The Ovarian Transcriptome at the Early Stage of Testis Removal-Induced Male-To-Female Sex Change in the Protandrous Black Porgy Acanthopagrus schlegelii

Frontiers in Genetics, 2022
Unlike gonochoristic fishes, sex is fixed after gonadal differentiation (primary sex determination), and sex can be altered in adults (secondary sex determination) of hermaphroditic fish species. The secondary sex determination of hermaphroditic fish has
Peng-Wei Tseng, Peng-Wei Tseng, Guan-Chung Wu, Guan-Chung Wu, Wei-Lun Kuo, Yung-Che Tseng, Ching-Fong Chang, Ching-Fong Chang   +7 more
doaj   +1 more source