Effect of lead pollution on fitness and its dependence on heterozygosity in Drosophila subobscura
2015
Autori:
Tanaskovic, MarijaKurbalija Novičić, Zorana
Kenig, Bojan
Stamenković-Radak, Marina
Anđelković, Marko
Tip dokumenta:
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
Lead is one of the most present contaminants in the environment, and
different species respond differently to this type of pollution. If
combined with genomic stress, lead may act synergistically, causing
significant decrease of fitness components. We used two genetically
diverse Drosophila subobscura populations (regarding both putatively
adaptive inversion and microsatellite loci polymorphisms) originating
from two ecologically distinct habitats. To establish different levels
of genome heterozygosity, series of intraline, intrapopulation and
interpopulation crosses were made. The progeny were reared on a standard
medium and a medium with 200 mu g/mL of lead acetate. Development time
was significantly extended to all groups reared on lead. The progeny of
intraline crosses showed significantly extended development time
compared to all other groups. The obtained results suggest that genome
heterozygosity reduces the effect of lead pollution.