Study of evolutionary changes in subfraction composition of histone H1 in birds

Analysis of electrophoretic mobility of histone H1 subfractions from liver, brain and erythrocytes of 41 bird species was carried out. Subfractions of erythrocyte H1 histones from each species were compared with those of thrush Turdus musicus. The majority of species proved to possess a set of elect...

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Bibliographic Details
Published inBiokhimiia (Moscow, Russia) Vol. 43; no. 5; p. 830
Main Authors Berdnikov, V A, Gorel, F L, Svinarchuk, F P
Format Journal Article
LanguageRussian
Published Russia (Federation) 01.05.1978
Subjects
Animals
Biological Evolution
Birds - genetics
Brain Chemistry
Electrophoresis, Polyacrylamide Gel
Erythrocytes - analysis
Histones - genetics
Liver - analysis
Species Specificity
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Summary:Analysis of electrophoretic mobility of histone H1 subfractions from liver, brain and erythrocytes of 41 bird species was carried out. Subfractions of erythrocyte H1 histones from each species were compared with those of thrush Turdus musicus. The majority of species proved to possess a set of electrophoretically similar subfractions. Interspecific differences in histone H1 were mainly due to the differences in the ratio of those subfractions. The identity of the electrophoretic mobility and similar contribution to H1 histone from the respective tissues in different species permits to consider certain subfractions as homologous ones. The conservation of electrophoretic mobility for homologous subfractions of the birds of different orders shows a high evolutionary conservatism of the corresponding genes. It seems that in the course of evolution only a change in the expression of some of those genes occurs.
ISSN:0320-9725