Erythrocyte micronucleus cytome assay of 17 wild bird species from the central Monte desert, Argentina.
Birds have the potential to be considered valuable bioindicators of the quality of ecosystems and the environmental impact of pollutants. The aims of this study were to determine the micronuclei frequency and other nuclear abnormalities in erythrocytes by analyzing a wild bird community from central Monte desert (Argentina) and to clarify if there were any differences among certain species. Frequencies of nuclear abnormalities were determined in 73 wild birds belonging to 17 species and two orders (Passeriformes and Columbiformes). A high proportion of individuals, 90.4 and 80.9 %, had erythrocytes with micronuclei and nuclear buds, respectively. Notched nuclei, binucleated cells, nuclear tails, and nucleoplasmic bridges were also recorded. Certain species appeared to be more informative than others with regard to the possibility of being used as bioindicators of genetic damage. Saltator aurantiirostris and Columbina picui were the only species that showed significantly different frequencies of nuclear alterations, in comparison with the other species. The frequencies here presented are the first reported for these bird species from the orders Passeriformes and Columbiformes. This research supports the notion that the use of these biomarkers could be effectively applied to evaluate spontaneous or induced genetic instability in wild birds.
Laboratorio de Genética, Ambiente y Reproducción (GenAR), Universidad Juan Agustín Maza, Mendoza, Argentina. aamartinquero@gmail.com.|Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina. aamartinquero@gmail.com.
Arnoldo A M
AAM
Quero
Laboratorio de Genética, Ambiente y Reproducción (GenAR), Universidad Juan Agustín Maza, Mendoza, Argentina.|Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina.
Daniela M
DM
Ferré
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina.|Instituto Argentino de Investigaciones de Zonas Áridas (IADIZA), CCT Mendoza- CONICET, Mendoza, Argentina.
Agustín
A
Zarco
Laboratorio de Ecología de Enfermedades (LEcEN), Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral, UNL - CONICET), Santa Fe, Argentina.
Pablo F
PF
Cuervo
Laboratorio de Genética, Ambiente y Reproducción (GenAR), Universidad Juan Agustín Maza, Mendoza, Argentina.|Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mendoza, Argentina.
Nora B M
NBM
Gorla
D000818:Animals; D000835:Animals, Wild / Q000235:genetics*; D001118:Argentina; D002467:Cell Nucleus; D046092:Columbiformes / Q000235:genetics*; D017753:Ecosystem; D004784:Environmental Monitoring; D004912:Erythrocytes / Q000166:cytology; D048629:Micronuclei, Chromosome-Defective; D015162:Micronucleus Tests; D046109:Passeriformes / Q000235:genetics*; D012016:Reference Values
Columbiformes; Cytome assay; Erythrocytes; Micronuclei; Nuclear abnormalities; Passeriformes; Wild birds
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