Fátima García Ayllón

Learn More
In this work, we have measured both micronuclei and other nuclear abnormalities in renal erythrocytes from European minnow Phoxinus phoxinus and mollie Poecilia latipinna, with the aim to contribute to the standardisation of the micronucleus test for fish species. Intraperitoneal injections of colchicine (10 mg/kg), cyclophosphamide (40 mg/kg), or mitomycin(More)
Brown trout, Salmo trutta, European eel, Anguilla anguilla, and European minnow, Phoxinus phoxinus, three fish species inhabiting European freshwater ecosystems, were evaluated for their use as in situ pollution biomarkers using the micronucleus test in renal erythrocytes. Experimental exposure (by immersion) to different concentrations of cyclophosphamide,(More)
Two brown trout Salmo trutta stocks of different origin (wild Polish, domestic commercial) came into secondary contact after deliberate releases conducted in virgin rivers systems of the Subantarctic Kerguelen Islands (70 degrees E 49 degrees S). Samples obtained in 2001-2003 and a historical sample from 1993 were analysed for genetic variation at seven(More)
The induction of micronuclei and other nuclear abnormalities in renal erythrocytes of rainbow trout Oncorhynchus mykiss by six genotoxic compounds is evaluated. Colchicine, mitomycin, cyclophosphamide, acrylamide, methyl-methanesulfonate, and N-ethyl-N-nitrosourea were intraperitoneally injected in trout. Our results show that cyclophosphamide induces the(More)
Micronucleus test was performed in situ on eels (Anguilla anguilla) from river sites with different levels of heavy metal pollution (cadmium and mercury). Cadmium content in eel liver but not micronuclei averages in kidney were associated with cadmium content in sediments. Mercury content in liver was not significantly associated with mercury content in(More)
Hybridization between sympatric species is not uncommon in the wild. Wild allotriploids (individuals with two chromosome sets from a species + one chromosome set from another species) are generally the result of a backcross between interspecific hybrids that produce unreduced gametes and one of the parental species. In animals, allotriploids are commonly(More)
We analysed micronuclei in brown trout Salmo trutta specimens sampled in the Trubia River, upstream and downstream of the emissions from a Spanish military factory to assess genotoxicity risks derived from military wastes. A significant exponential increase in micronuclei counts was found in fish living downstream of the military wastes with respect to(More)
  • 1