In September samples, gonads were ripe or partially spawned, in January gonads were in advanced gametogenesis
, and in April gonads were ripe.
Through doing more research on reproductive biology and increasing our knowledge of gametogenesis
, fertilization, embryo development, implantation and fetus-uterus crosstalk, more effective treatment options in future for infertile couples specially the ones with unexplained infertility would be provided.
Relative to unselected cells, AHR-positive cells showed a time-dependent decrease of expression of GO categories involved in a) cardiac differentiation and morphogenesis, b) increasingly lower expression of categories involved in WNT (wingless-related MMTV integration site 3A) signaling and regulation of gastrulation, c) gametogenesis
, and d) high levels of expression of genes involved in drug and xenobiotic metabolism (Figure 2B; see also Supplemental Material, Table S3).
Scallops in this region naturally spawn in the spring, when the water temperature increases and triggers gametogenesis
, the development of eggs and sperm," White said.
Among temperate lizards, the most common pattern is one in which both sexes exhibit gametogenesis
, courtship, and mating in spring, followed by oviposition or birth in spring or early summer.
Hansen (1958) suggested that physiological uptake of water activates gametogenesis
in Eastern Spadefoots and that soil saturation resulting from heavy rainfall stimulates reproductive behavior.
Insects in imaginal diapause may show physiological changes, such as fat body storage, reduced oxygen consumption, and cessation of development and cessation of gametogenesis
(Denlinger 2002; Tauber et al.
, and embryology in Brachicomeciliaris (Labill).
They discuss theoretical aspects of gametogenesis
and embryo development at the cellular and molecular level, implantation and stages of development, the IVF laboratory, basic assisted reproductive technologies (ART), and advanced techniques, including pre-implantation genetic diagnosis.
Kholkute: Research efforts of stem cell biology group have recently led to the detection of embryonic-like stem cells in adult gonads and thus provided newer insight into gametogenesis
15,16) DNMT3L is highly expressed in gametes and is a known factor responsible for the acquisition of imprints during gametogenesis
During development, these DNA imprints are erased in the primordial germ cells (PGCs) and reestablished during gametogenesis
(Ruddock et al.