title: [Specific features of expression of aspartate aminotransferase genes in early development of some cyprinid fishes and their intergeneric F1 hybrids].
abstract: Temporal parameters of expression of the aspartate aminotransferase gene Aat-1 parental alleles were studied in early development of intergeneric reciprocal F1 hybrids of the bream, roach, and blue bream. When the first AaT-1 expression was timed to the early stages (late blastula-gastrula), the gene parental alleles were activated asynchronously according to the maternal types (blue bream x roach hybrids). When the first Aat-1 expression was timed to later stages (yolk sac resorption), the parental alleles were activated synchronously (bream x roach, roach x bream, and roach x blue bream hybrids). The pattern of activation of embryonic genes is determined by the maternal environment and the influence of allele interactions is not excluded: Aat-f/Aat-sl (bream x roach, roach x bream, and roach x blue bream) and Aat-sl/Aat-med (blue bream x roach).
authors.affiliation: Papanin Institute of Biology of Inland Watersybrids, Russian Academy of Sciences, Borok, Yaroslavl' oblast', 152742 Russia. aam@ibiw.yaroslavl.ru
authors.forename: A M
authors.initials: AM
authors.lastname: Andreeva
mesh_terms: D000483:Alleles; D000818:Animals; D024443:Aspartate Aminotransferase, Cytoplasmic / Q000235:genetics*; D002678:Chimera / Q000235:genetics / Q000254:growth & development; D003530:Cyprinidae / Q000235:genetics / Q000254:growth & development*; D018507:Gene Expression Regulation, Developmental; D015971:Gene Expression Regulation, Enzymologic; D007527:Isoenzymes / Q000235:genetics; D018482:Muscle, Skeletal / Q000201:enzymology; D013696:Temperature
chemical_list: D007527:Isoenzymes; D024443:Aspartate Aminotransferase, Cytoplasmic