ORGANIZATION OF NUCLEOTIDE-SEQUENCES IN THE GENOME OF THE STERLET ACIPENSER-ACIPENSERстатья
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:Three fractions of repeated sequences with different thermal stability after reassociation, zero time and single copy fraction as well were isolated from a sterlet(Acipenser acipenser) genome. Repeated sequences with different thermal stability are organized as homogeneous families not reassociating with one onother when being repeatedly annealed. These fractions consist of the similar kinetic components; the exception is the slowly reassociating component which is found only in the low temperature fracion. The sterlet repeated sequences were also fractionated according to their lengthon agarose A-50 columns. The long (no less than 1350 nucleotides) sequences are heterogeneous by extent of their divergency, some part of them being highly divergent and contain sequences that are heterologous to repeated sequnces with low thermal stability. Asuggestion is made that long and short repeated sequences in the sterlet genome are partly shared. The short (about 400 - 600 nucleotides) repeated sequences in the sterlet genome are interspersed within single copy ones.