Research output: Contribution to journal › Article
High-resolution mapping of a/b compartments and topologically associated domains on giant lampbrush chromosomes. / Krasikova, A.; Zlotina, A.; Maslova, A.; Starshova, P.; Kulikova, T.
In: Biopolymers and Cell, Vol. 35, No. 3, 01.05.2019, p. 175.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High-resolution mapping of a/b compartments and topologically associated domains on giant lampbrush chromosomes
AU - Krasikova, A.
AU - Zlotina, A.
AU - Maslova, A.
AU - Starshova, P.
AU - Kulikova, T.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - Progress in studies aimed at “deciphering” the spatial architecture of the genome is determined by the development of several key technologies: the chromatin conformation capture, ultra-high resolution optical microscopy and genomic locus imaging. At the same time, it remains unclear how the domains, determined by chromatin conformation capture technology, including topologically associated domains (TADs) and A/B compartments, are correlated with the chromatin domains detected at the cytological level. In the framework of this problem, a comprehensive study of the chromatin domains of giant lampbrush chromosomes characteristic of the growing oocytes in birds, amphibians and reptiles, seems appropriate. Methods: Here we aimed at comparing the chromomeres – the main structural unit of lampbrush chromosome axes – and topologically associated domains and A/B compartments in domestic chicken (Gallus gallus domesticus), whose genome was the first among the deciphered avian genomes. In addition, earlier, using the full-genome Hi-C method a number of hierarchical structural domains, such as A and B compartments and TADs, were identified in chicken embryonic fibroblasts. Results: The results obtained allowed us to verify the hypothesis of the correspondence between the globular-loop chromatin domains of the interphase nucleus and the chromomere-loop complexes of lampbrush chromosomes, as well as to shed light on the nature of the lampbrush chromosome chromomeres.
AB - Progress in studies aimed at “deciphering” the spatial architecture of the genome is determined by the development of several key technologies: the chromatin conformation capture, ultra-high resolution optical microscopy and genomic locus imaging. At the same time, it remains unclear how the domains, determined by chromatin conformation capture technology, including topologically associated domains (TADs) and A/B compartments, are correlated with the chromatin domains detected at the cytological level. In the framework of this problem, a comprehensive study of the chromatin domains of giant lampbrush chromosomes characteristic of the growing oocytes in birds, amphibians and reptiles, seems appropriate. Methods: Here we aimed at comparing the chromomeres – the main structural unit of lampbrush chromosome axes – and topologically associated domains and A/B compartments in domestic chicken (Gallus gallus domesticus), whose genome was the first among the deciphered avian genomes. In addition, earlier, using the full-genome Hi-C method a number of hierarchical structural domains, such as A and B compartments and TADs, were identified in chicken embryonic fibroblasts. Results: The results obtained allowed us to verify the hypothesis of the correspondence between the globular-loop chromatin domains of the interphase nucleus and the chromomere-loop complexes of lampbrush chromosomes, as well as to shed light on the nature of the lampbrush chromosome chromomeres.
KW - animal experiment
KW - Article
KW - chicken
KW - Chromatin
KW - chromosome
KW - controlled study
KW - fibroblast
KW - interphase
KW - nonhuman
KW - writing
UR - http://www.scopus.com/inward/record.url?scp=85073274128&partnerID=8YFLogxK
U2 - 10.7124/bc.0009AF
DO - 10.7124/bc.0009AF
M3 - Article
AN - SCOPUS:85073274128
VL - 35
SP - 175
JO - Biopolymers and Cell
JF - Biopolymers and Cell
SN - 0233-7657
IS - 3
ER -
ID: 49559333