Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

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Brodacki A. , Wójcik A. 2001. POLYMORPHISM VS. EXPRESSION OF PROTEIN CODING GENES IN JAPANESE QUAIL, EJPAU 4(2), #06.
Available Online: http://www.ejpau.media.pl/volume4/issue2/animal/abs-06.html

ABSTRACT

The study covered 97 Japanese quails of various genotypes of the protein referred to as preactin (PAK). The birds of AA genotype had a single, intensively stained, fast–migrating band; the BB genotypes had a single, slow–migrating, also intensively stained band, whereas the AB birds had two bands. The protein concentration, established basing on the area and height of peaks, was significantly higher in the BB homozygotes than in the AA ones, which appeared also in the form of more intensive staining of the slow–migrating band than that of the fast–migrating band of the AB heterozygotes. The differences, however, were insignificant. The protein level of heterozygotes in the sub–region, calculated as the sum of two bands, was more than 50% higher than in either of the homozygous forms. The differences, confirmed statistically, can demonstrate that the genotype determining the proteins influences the expression of the genes coding particular proteins.

Key words: polymorphism, proteins, gene expression.

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