COMPARISON OF CHROMOSOMAL DNA FRAGMENTS FROM NUCLEAR LAMINA, CORES OFROSETTE-LIKE STRUCTURES (ELEMENTARY CHROMOMERES), MARS SARS, AND SYNAPTONEMAL COMPLEXES BASED ON SOME SIMPLE NUCLEOTIDE MOTIFS/

Nucleotide sequences putatively involved in chromosome loop formation in somatic and meiotic animal and plant cells were analyzed. DNA fragm ents isolated from nuclear lamina, core of rosette-like structures, sy naptonemal complexes, and matrix/scaffold-associated regions (MARs/SAR s) were compared using linear discriminant analysis. Though all types of the samples were discriminated, higher similarity was shown for nuc lear lamina, cores of rosette-like structures, and synaptonemal comple xes. This group was rather distinct from MARs/SARs, the latter being m ore similar to the 5' flanks of various eukaryotic genes and to the sa mple of random sequences.