2013, Volume 16, Issue 2
The Involvement of Deuterium Presence in the Drosophila Melanogaster Evolution - Diverse Effects of Deuterium Concentrations Upon the Phenotype of Different Strains and Romanian Ecotypes
1 University of Agricultural Sciences and Veterinary Medicine of Banat from Timişoara, Calea Aradului no. 119; zip 300645, Romania
2 National Research and Development Institute for Cryogenics and Isotopic Technologies - ICSI Rm. Valcea, Uzinei Street no. 4, PO Box Râureni 7, 240050, Râmnicu Vâlcea, Romania
On Drosophila melanogaster a genetic model organism many experiments have been organized to identify the effect of Deuterium. In this respect standard genotypes (3) and Romanian ecotypes (3) have been used. White genotype (w+) has been used as reference material. Six deuterium concentrations were tested. Deuterium content was below and above the content naturally occurs (0.014%, 0.0025%, 0.050%, 2.290%, 13.260% and 25.000% respectively). To highlight the 2H effects on the individuals’ phenotype and behavior the survivability; the adult adaptive capacity to the presence of 2H in the culture media; the prolificacy; the females / males sensitivity to 2H and the teratological and hereditary changes were followed out. Data from five successive generations were statistically processed. As a general observation we can assume that the growth media/diet containing a low [0.0025%] amount of 2H improved the female’s capacity to lay eggs and to develop a large population. A similar behavior was pointed out by the females fed with 13.260% 2H. If the amount of 2H was high the physiological processes and prolificacy were drastically repressed.
Drosophila melanogaster, low and high concentrations of deuterium, Nutrigenetics.
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