Topic
Coturnix
About: Coturnix is a research topic. Over the lifetime, 953 publications have been published within this topic receiving 23305 citations.
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TL;DR: In conclusion, ATR altered the microstructure and function of quail kidney and induced renal damage via causing mitochondrial dysfunction, influencing mitochondrial function related genes expression, modulating Nrf2 signaling pathway.
34 citations
TL;DR: It is concluded that the majority of quail sold for restocking purposes were not common quail, and more than 85% of the game farm birds were notCommon quail but had domestic Japanese quail ancestry.
Abstract: The common quail (Coturnix coturnix) is a popular game species for which restocking with farm-reared individuals is a common practice. In some areas, the number of released quails greatly surpasses the number of wild breeding common quail. However, common quail are difficult to raise in captivity and this casts suspicion about a possible hybrid origin of the farmed individuals from crosses with domestic Japanese quail (C. japonica). In this study we used a panel of autosomal microsatellite markers to characterize the genetic origin of quails reared for hunting purposes in game farms in Spain and of quails from an experimental game farm which was founded with hybrids that have been systematically backcrossed with wild common quails. The genotypes of these quail were compared to those of wild common quail and domestic strains of Japanese quail. Our results show that more than 85% of the game farm birds were not common quail but had domestic Japanese quail ancestry. In the experimental farm a larger proportion of individuals could not be clearly separated from pure common quails. We conclude that the majority of quail sold for restocking purposes were not common quail. Genetic monitoring of individuals raised for restocking is indispensable as the massive release of farm-reared hybrids could represent a severe threat for the long term survival of the native species.
34 citations
TL;DR: Evidence is provided that As added alone in the form of arsenite has little effect on methylmercury toxicity but altered the ability of selenite to modify methylmerCury toxicity.
33 citations
TL;DR: The thymic epithelium has the capacity to induce tolerance of xenogeneic rudiments when both grafts are implanted at early stages of embryonic development and two birds in which removal of the chick host thymus was complete are reported.
Abstract: We demonstrated previously that isotopic and isochronic grafts of the quail bursa of Fabricius rudiment performed at 5 days of incubation (E5) into chick embryos resulted in the development of a chimeric bursa whose chick host B lymphocytes and accessory cells differentiated in a foreign, quail epithelial environment. Such animals reject their grafted bursa by the age of 2-3 weeks post-hatching (1,2). Isotopic embryonic grafts of the thymus epitheliomesenchymal anlagen from the quail donor of the bursal rudiment were carried out at E4.5 (before their colonization by hemopoietic precursor cells), following partial or complete host thymectomy. The quail thymic epithelial stroma was accepted and invaded by chick hemopoietic precursor cells that further differentiated into lymphocytes and dendritic cells. Tolerance of the foreign bursa was induced in such thymobursal chimeras. This demonstrates that the thymic epithelium has the capacity to induce tolerance of xenogeneic rudiments when both grafts are implanted at early stages of embryonic development. We also report on the production of two birds in which removal of the chick host thymus was complete thus generating chimeras in which host T and B lymphocytes differentiated in a completely xenogeneic epithelial environment.
33 citations
TL;DR: Experimental evidence is provided that peripheral blood fibrocytes exist in the avian species; they are present in the circulation of the chicken embryo and contribute to the organogenesis of the spleen.
Abstract: Chick-quail chimeric studies were made to determine the origin of the cells of splenic ellipsoid. The ellipsoid is formed by supporting and phagocytic cells, which are embedded in a well-organized extracellular matrix. Splenic and bursal anlage of 6- to 6.5-day-old quail embryos were transplanted into the coelomic cavity of 3-day-old chick embryos and further incubated for 17 days. CD45+ chicken hemopoietic cells colonized both organs. They formed the cells of the ellipsoid and the periellipsoidal white pulp of the transplanted quail spleen. Chicken-specific collagen III was produced only in the donor quail spleen, but not in the bursa of Fabricius. The CD45+/collagen I+/collagen III+ cells are probably identical with the mammalian peripheral blood fibrocytes and contribute to the formation of supporting cells, whereas the CD45+/74.2+ ellipsoid-associated macrophages are of monocytic origin. We provide, for the first time, experimental evidence that peripheral blood fibrocytes exist in the avian species; they are present in the circulation of the chicken embryo and contribute to the organogenesis of the spleen.
33 citations