AI Article Synopsis
- Sexual dimorphism helps different sexes optimize their fitness, with genetic and hormonal factors influencing the development of sex-specific traits, despite genetic constraints from intralocus sexual conflict.
- In teleost fish, the study of ohnologs (genes that arose from genome duplication) is crucial for understanding how androgen regulation contributes to male-specific traits like fin elongation and courtship behavior.
- Research on teleosts reveals their potential as experimental models for comparative studies, paving the way for insights into the molecular basis of sexual characteristics and immune responses across diverse fish species.
Article Abstract
Sexual dimorphism allows species to meet their fitness optima based on the physiological availability of each sex. Although intralocus sexual conflict appears to be a genetic constraint for the evolution of sex-specific traits, sex-linked genes and the regulation of sex steroid hormones contribute to resolving this conflict by allowing sex-specific developments. Androgens and their receptor, androgen receptor (Ar), regulate male-biased phenotypes. In teleost fish, ohnologs have emerged as a result of teleost-specific whole genome duplication (TSGD). Recent studies have highlighted the evolutionary differentiation of ohnologs responsible for the development of sexual characteristics, which sheds light on the need for comparative studies on androgen regulation among different species. In this review, we discuss the importance of signaling as a regulator of male-specific traits in teleost species because teleost species are suitable experimental models for comparative studies owing to their great diversity in male-biased morphological and physiological traits. To date, both in vivo and in vitro studies on teleost ohnologs have shown a substantial influence of s as a regulator of male-specific reproductive traits such as fin elongation, courtship behavior, and nuptial coloration. In addition to these sexual characteristics, substantially influences immunity, inducing a sex-biased immune response. This review aims to provide a comprehensive understanding of the current state of teleost studies and emphasizes the potential of teleost fishes, given their availability, to find molecular evidence about what gives rise to the spectacular diversity among fish species.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.2108/zs230098 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A macroevolutionary perspective of cryptic coloration in sexually dichromatic grasshoppers of the genus Sphenarium (Orthoptera: Pyrgomorphidae).
Oecologia
January 2025
Laboratorio de Ecología, UBIPRO, FES Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, 54090, México.
Background matching and disruptive coloration are defense mechanisms of animals against visual predators. Disruptive coloration tends to evolve in microhabitats that are visually heterogeneous, while background matching is favored in microhabitats that are chromatically homogeneous. Controlling for the phylogeny, we explored the evolution of the coloration and the marking patterns in the sexual dichromatic and widely distributed neotropical grasshoppers of the genus Sphenarium.
View Article and Find Full Text PDFBrief Report: Antiretroviral Treatment Use Over Time Among Adolescents and Young Adults in the Rakai Community Cohort Study, 2011-2020.
J Acquir Immune Defic Syndr
December 2024
Heilbrunn Department of Population and Family Health, Mailman School of Public Health, Columbia University, New York, NY.
Background: In sub-Saharan Africa, pediatric and adult treatment programs have not met the needs of youth living with HIV (15-24 years), whose enrollment in antiretroviral treatment (ART) programs is much lower than that of adults. To inform targeted interventions, we analyzed factors associated with ART use among youth in Uganda.
Methods: Data were from 42 communities between 2011 and 2020 (5 survey rounds) from the Rakai Community Cohort Study, an open, population-based cohort.
Impact of a Virtual Care Navigation Service on Member-Reported Outcomes Among Lesbian, Gay, Bisexual, Transgender, and Queer Populations: Case Study.
JMIR Form Res
January 2025
School of Nursing, University of Pennsylvania, 418 Curie Blvd, Philadelphia, PA, 19104, United States, 1 8123695216.
Background: While the significance of care navigation in facilitating access to health care within the lesbian, gay, bisexual, transgender, queer, and other (LGBTQ+) communities has been acknowledged, there is limited research examining how care navigation influences an individual's ability to understand and access the care they need in real-world settings. By analyzing private sector data, we can bridge the gap between theoretical research findings and practical applications, ultimately informing both business strategies and public policy with evidence grounded in real-world efficacy.
Objective: The objective of this study was to evaluate the impact of specialized virtual care navigation services on LGBTQ+ individuals' ability to comprehend and access necessary care within a national cohort of commercially insured members.
Research in compulsory drug detention centres in China: Characteristics and ethical considerations.
Glob Public Health
December 2025
Department of Community Health and Prevention, Drexel Dornsife School of Public Health, Philadelphia, PA, USA.
More than 500 centres in China hold over 300,000 individuals in what has been described by the United Nations as unethical and ineffective compulsory treatment and rehabilitation centres. Individuals in these centres face widespread human rights abuses, including lack of due process, forced labour, physical and sexual violence, and denial of healthcare. Because of the vulnerability of individuals in detention settings to abuse in research trials, ethical guidelines have required research to pose no more than minimal risk, to address the process of incarceration, and the health or well-being of detained individuals.
View Article and Find Full Text PDFChildhood obesity and central precocious puberty.
Zhong Nan Da Xue Xue Bao Yi Xue Ban
July 2024
Second Ward of Endocrinology Department, First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450000.
Central precocious puberty (CPP) is an endocrine disorder in children caused by the early activation of the hypothalamic-pituitary-gonadal axis (HPGA), leading to elevated gonadotropin-releasing hormone (GnRH), which triggers the development of gonads and the secretion of sex hormones. This eventually results in the development of internal and external genitalia and secondary sexual characteristics. CPP significantly affects the physical and mental health of children and may increase the risk of various adult diseases.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!