Results 81 to 90 of about 55,016 (311)
eLifeAccurate specification of female and male germ cells during embryonic development is critical for sexual reproduction. Primordial germ cells (PGCs) are the bipotential precursors of mature gametes that commit to an oogenic or spermatogenic fate in ...
Adriana K Alexander +7 more
doaj +1 more source
Estimate of gonad extent with increasing size.
, 2014 The majority of animals in our initial samples were small with little gonad development in both sexes (open symbols). Each measure of gonad area is the mean of 10 cross-sections equidistant along the trunk.
Verena Tunnicliffe (192257) +2 more
core +1 more source
Gonadal development in scorpion mud‐turtles, Kinosternon scorpioides, in a controlled environment
The Anatomical Record, EarlyView.Stage 20 was identified as the critical point for gonadal differentiation in Kinosternon scorpioides, providing key insights into sex determination. These findings enhance conservation strategies by supporting reproductive management and population viability in both in situ and ex situ programs. Abstract Research on gonadal development including sexual
Brenda Braga +4 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The equine ovary exhibits unique structural and developmental features that distinguish it from those of other domestic species, including the presence of an ovulation fossa and an inversion of cortical and medullary layers. This study aimed to investigate the morphostructural development of the equine fetal ovary, with particular emphasis on ...
Laura Ver Goltz +5 more
wiley +1 more source
Transcriptional regulation of Drosophila gonad formation [PDF]
, 2014 The formation of the Drosophila embryonic gonad, involving the fusion of clusters of somatic gonadal precursor cells (SGPs) and their ensheathment of germ cells, provides a simple and genetically tractable model for the interplay between cells during ...
Kunwar, P. +7 more
core +1 more source
The 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
Development of sexual traits during embryogenesis in an alpine skink with temperature-induced sex reversal [PDF]
Royal Society Open ScienceTemperature-induced sex reversal is a poorly understood trait in reptiles, described for only a small number of species. In the Eastern three-lined skink (Bassiana duperreyi), genotypic females exposed to cold temperatures reverse sex and develop as ...
Duminda Sampath Bandara Dissanayake +1 more
doaj +1 more source
South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde, 1974 A brief account is given of the circumstances under which gonadal irradiation may be expected to occur. The nonspecific tissue effect and the hormonal and sterilising effects are considered. Genetic implications are mentioned.S. Afr. Med. J., 48, 543 (1974)
openaire +3 more sources
The Anatomical Record, EarlyView.Abstract The human mandibular symphysis concentrates multiaxial loads during function and remodels throughout growth, but the precise mechanisms underlying cortical bone shape during growth remain relatively unexplored. Approaches based solely on thickness or external cortical contours provide only partial insights and do not capture the functional ...
Ana Ribeiro +3 more
wiley +1 more source
Administration with emulsion containing py-GnRH peptide into scallop gonad.
, 2015 A) Shells clamped with clothespin to expose the gonad for injection with emulsion. B) Schematic diagram indicating the position of injection. Gonad intestinal loop is indicated with dashed line in the gonad.
Kazue Nagasawa (166238) +4 more
core +1 more source