The Experts below are selected from a list of 261 Experts worldwide ranked by ideXlab platform
Jean-marie Boutin - One of the best experts on this subject based on the ideXlab platform.
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Evidence for introgressive hybridization of wild common quail (Coturnix Coturnix) by domesticated Japanese quail (Coturnix japonica) in France
Conservation Genetics, 2009Co-Authors: Olympe Chazara, Denis Roux, Katia Feve, Jean-luc Coville, Sophie Lumineau, Francis Minvielle, Boniface B. Kayang, Alain Vignal, Jean-marie BoutinAbstract:Many cases of introgressive hybridization have been reported among birds, particularly following introduction to the natural environment of individuals belonging to non-native similar taxa. This appears to be the case for common quail (Coturnix Coturnix) in France where wild populations artificially come into contact with domesticated Japanese quail (Coturnix japonica) raised for meat and egg production but sometimes released for hunting purposes. In order to highlight the possible existence of gene flows between both taxa, a comparison of nuclear (25 microsatellite loci) and mitochondrial (sequencing and RFLP) DNA polymorphisms was performed on 375 common quails (from France, Spain and Morocco) and 140 Japanese quails (from France and Japan). Genetic diversity was assessed, and analyses (Factorial Correspondence Analysis, Bayesian admixture) of molecular polymorphisms revealed clear differentiation between the two taxa, making it possible to detect for hybrids among quails sampled in the wild. Eight birds expected to be common quail were found to be two pure Japanese quail, one probable backcross to C. japonica, three F1/F2 hybrids, and two probable backcrosses to Coturnix Coturnix. These results show that Japanese quails were released and suggest that the two taxa hybridize in the wild. They confirm the urgent need for preventing the release of pure Japanese or hybrid quails to preserve the genetic integrity of C. Coturnix. The tools developed for this study should be useful for accurate monitoring of wild quail populations within the framework of avifauna management programs.
Gábor Reuter - One of the best experts on this subject based on the ideXlab platform.
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Novel picornavirus in domesticated common quail (Coturnix Coturnix) in Hungary
Archives of Virology, 2012Co-Authors: Péter Pankovics, Ákos Boros, Gábor ReuterAbstract:This study reports the detection of a novel picornavirus in domesticated common quail ( Coturnix Coturnix ) in Hungary. The 8159-nucleotide (nt)-long RNA genome of this virus, named quail picornavirus (QPV1-HUN/2010; JN674502), shows only 43%, 39% and 47% amino acid (aa) identity in the P1 (857 aa), P2 (458 aa) and P3 (777 aa) coding regions respectively, to the closest reference, avian sapelovirus. The 5′UTR contains a variant type IV IRES with a 20-nt-long apical “8”-like structure that is conserved in avian-origin and seal picornaviruses. The 390-aa-long L protein is cysteine rich and encodes two copies of a 34-aa-long repeat motif. Quail picornavirus represents a novel picornavirus species and perhaps a novel genus.
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Novel picornavirus in domesticated common quail (Coturnix Coturnix) in Hungary
Archives of Virology, 2012Co-Authors: Péter Pankovics, Ákos Boros, Gábor ReuterAbstract:This study reports the detection of a novel picornavirus in domesticated common quail ( Coturnix Coturnix ) in Hungary. The 8159-nucleotide (nt)-long RNA genome of this virus, named quail picornavirus (QPV1-HUN/2010; JN674502), shows only 43%, 39% and 47% amino acid (aa) identity in the P1 (857 aa), P2 (458 aa) and P3 (777 aa) coding regions respectively, to the closest reference, avian sapelovirus. The 5′UTR contains a variant type IV IRES with a 20-nt-long apical “8”-like structure that is conserved in avian-origin and seal picornaviruses. The 390-aa-long L protein is cysteine rich and encodes two copies of a 34-aa-long repeat motif. Quail picornavirus represents a novel picornavirus species and perhaps a novel genus.
Olympe Chazara - One of the best experts on this subject based on the ideXlab platform.
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Evidence for introgressive hybridization of wild common quail (Coturnix Coturnix) by domesticated Japanese quail (Coturnix japonica) in France
Conservation Genetics, 2009Co-Authors: Olympe Chazara, Denis Roux, Katia Feve, Jean-luc Coville, Sophie Lumineau, Francis Minvielle, Boniface B. Kayang, Alain Vignal, Jean-marie BoutinAbstract:Many cases of introgressive hybridization have been reported among birds, particularly following introduction to the natural environment of individuals belonging to non-native similar taxa. This appears to be the case for common quail (Coturnix Coturnix) in France where wild populations artificially come into contact with domesticated Japanese quail (Coturnix japonica) raised for meat and egg production but sometimes released for hunting purposes. In order to highlight the possible existence of gene flows between both taxa, a comparison of nuclear (25 microsatellite loci) and mitochondrial (sequencing and RFLP) DNA polymorphisms was performed on 375 common quails (from France, Spain and Morocco) and 140 Japanese quails (from France and Japan). Genetic diversity was assessed, and analyses (Factorial Correspondence Analysis, Bayesian admixture) of molecular polymorphisms revealed clear differentiation between the two taxa, making it possible to detect for hybrids among quails sampled in the wild. Eight birds expected to be common quail were found to be two pure Japanese quail, one probable backcross to C. japonica, three F1/F2 hybrids, and two probable backcrosses to Coturnix Coturnix. These results show that Japanese quails were released and suggest that the two taxa hybridize in the wild. They confirm the urgent need for preventing the release of pure Japanese or hybrid quails to preserve the genetic integrity of C. Coturnix. The tools developed for this study should be useful for accurate monitoring of wild quail populations within the framework of avifauna management programs.
Péter Pankovics - One of the best experts on this subject based on the ideXlab platform.
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Novel picornavirus in domesticated common quail (Coturnix Coturnix) in Hungary
Archives of Virology, 2012Co-Authors: Péter Pankovics, Ákos Boros, Gábor ReuterAbstract:This study reports the detection of a novel picornavirus in domesticated common quail ( Coturnix Coturnix ) in Hungary. The 8159-nucleotide (nt)-long RNA genome of this virus, named quail picornavirus (QPV1-HUN/2010; JN674502), shows only 43%, 39% and 47% amino acid (aa) identity in the P1 (857 aa), P2 (458 aa) and P3 (777 aa) coding regions respectively, to the closest reference, avian sapelovirus. The 5′UTR contains a variant type IV IRES with a 20-nt-long apical “8”-like structure that is conserved in avian-origin and seal picornaviruses. The 390-aa-long L protein is cysteine rich and encodes two copies of a 34-aa-long repeat motif. Quail picornavirus represents a novel picornavirus species and perhaps a novel genus.
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Novel picornavirus in domesticated common quail (Coturnix Coturnix) in Hungary
Archives of Virology, 2012Co-Authors: Péter Pankovics, Ákos Boros, Gábor ReuterAbstract:This study reports the detection of a novel picornavirus in domesticated common quail ( Coturnix Coturnix ) in Hungary. The 8159-nucleotide (nt)-long RNA genome of this virus, named quail picornavirus (QPV1-HUN/2010; JN674502), shows only 43%, 39% and 47% amino acid (aa) identity in the P1 (857 aa), P2 (458 aa) and P3 (777 aa) coding regions respectively, to the closest reference, avian sapelovirus. The 5′UTR contains a variant type IV IRES with a 20-nt-long apical “8”-like structure that is conserved in avian-origin and seal picornaviruses. The 390-aa-long L protein is cysteine rich and encodes two copies of a 34-aa-long repeat motif. Quail picornavirus represents a novel picornavirus species and perhaps a novel genus.
P. A. Okewole - One of the best experts on this subject based on the ideXlab platform.
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Serum biochemical changes in Japanese quail (Coturnix Coturnix japonica) experimentally infected with salmonella enterica serovar gallinarum
African Journal of Cellular Pathology, 2015Co-Authors: I. J. Barde, J. O. O. Bale, S. B. Oladele, M. Y. Fatihu, Peterside Kumbish, A. G. Rimfa, J. S. Ahmed, P. A. OkewoleAbstract:Aim: To determine the serum biochemical changes in Japanese quail (Coturnix Coturnix japonica) experimentally infected with Salmonella enterica serovar Gallinarum Methods: A total of 160 (108 males and 52 females) Japanese quails (Coturnix Coturnix japonica) were used for the experiment. Four weeks old quails were randomly selected and assigned into four groups (A, B,C and D) of forty quails each. Groups A, B and C were infected with Salmonella enterica serovar Gallinarum per os at the dose of 106,104and102, respectively, while group D served as the control. Sera were used for the determination of biochemical parameters. Results: There were significant changes (P
