Results 91 to 100 of about 77,179 (233)

A role for TRPC3 in mammalian testis development

open access: yesFrontiers in Cell and Developmental Biology
SOX9 is a key transcription factor for testis determination and development. Mutations in and around the SOX9 gene contribute to Differences/Disorders of Sex Development (DSD).
Zhenhua Ming   +9 more
doaj   +1 more source

Key events in the process of sex determination and differentiation in early chicken embryos [PDF]

open access: yesAnimal Bioscience
Objective Current understanding of sex determination and differentiation mechanisms during early chicken embryonic development remains incomplete. To address this, we applied RNA sequencing to identify male-female expression differences at critical ...
Xiaoqian Lv   +16 more
doaj   +1 more source

Factors influencing the functional development of the male gonad [PDF]

open access: yesProceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1933
The recent advances in our knowledge of the function of the anterior pituitary lobe in relation to gonadic development and activity, have led to an investigation of the part played by the pituitary in controlling testicular growth and function. The understanding of the relation between the hypophysis and the gonads in the male is, in general, less ...
openaire   +1 more source

Determining the timeline of gonadal and genital differentiation in male and female equine fetuses allows for early detection and intervention in malformations

open access: yesThe Anatomical Record, EarlyView.
Abstract Sexual differentiation in the equine fetus involves coordinated morphogenetic processes that shape both the gonads and the genital ducts. Although the formation of testes and ovaries has been relatively well documented, the temporal dynamics and morphometric patterns of the mesonephric (Wolffian) and paramesonephric (Müllerian) ducts remain ...
Tais Harumi de Castro Sasahara   +4 more
wiley   +1 more source

The Migratory Ability of Gonadal Germ Cells in the Domestic Chicken

open access: yesThe Journal of Poultry Science, 2004
The migratory ability of germ cells collected from gonads at different stages of embryonic development was investigated in the domestic chicken. In Experiment 1, primordial germ cells (PGCs) were collected from 2.5-day-old embryo.
Takeo Minematsu   +2 more
doaj   +1 more source

Temporary fat storage, an adaptation of some fish species to the waterlevel fluctuations and related environmental changes of the Amazon river

open access: yes, 1985
Analysis of Amazonian freshwater fish exhibited great differences in water- and fat content. Migratory species which deposit huge amounts of eggs in a single spawning act accumulate at high water-level great amounts of fat in various parts of the body ...
Junk, W.
core  

A PITX2-HTR1B pathway regulates the asymmetric development of female gonads in chickens. [PDF]

open access: yesPNAS Nexus, 2023
Peng Z   +9 more
europepmc   +1 more source

Female Sex Development and Reproductive Duct Formation Depend on Wnt4a in Zebrafish. [PDF]

open access: yes, 2019
In laboratory strains of zebrafish, sex determination occurs in the absence of a typical sex chromosome and it is not known what regulates the proportion of animals that develop as males or females.
Bruce W. Draper   +8 more
core   +1 more source

Effects of a saponin fraction extracted from Trigonella foenum-graecum L. and two commercially available saponins on sex ratio and gonad histology of Nile tilapa fry, Oreochromis niloticus (L.) [PDF]

open access: yes, 2013
Over three million tonnes (t) of tilapia, mostly Nile tilapia (Oreochromis niloticus, L.), are produced annually making it the second most abundantly produced freshwater fish (FAO, 2010).
Abu-Lafi, S.   +8 more
core  

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