embryo
- The formation of the atrioventricular conduction axis is linked in development to ventricular septation
Summary: Completion of ventricular septation is required for the presence of the atrioventricular conduction system (AVCS) in extant Archelosauria. AVCS formation is correlated with full ventricular septation in both evolution and development.
- Transplanting gravid lizards to high elevation alters maternal and embryonic oxygen physiology, but not reproductive success or hatchling phenotype
Summary: Reproducing females and developing embryos of the lizard species Podarcis muralis appear to be resilient, at least in the short term, to reduced oxygen availability at high elevations.
- Chemically induced plasticity in early life history of Palaemon argentinus: are chemical alarm cues conserved within palaemonid shrimps?
Summary: Exposure to infochemicals from crushed conspecifics and heterospecifics alters embryonic developmental time, size and morphology of the first larval instar in a palaemonid shrimp, indicating that alarm cues are conserved in this taxon, providing embryos with an innate recognition of alarm cues.
- Evidence of embryonic regulation of maternally derived yolk corticosterone
Summary: Embryos are capable of metabolizing maternally derived yolk corticosterone to minimize exposure during development and to avoid deleterious effects on phenotype and survival.
- Contrasting effects of increased yolk testosterone content on development and oxidative status in gull embryos
Summary: Increased yolk testosterone concentration in yellow-legged gulls promotes body mass growth of embryos but reduces brain size. Moreover, sex differences in brain size exist among control embryos.