Khoroshko, V.A., Zykova, T.Y., Popova, O.O., Zhimulev, I.F. (2018). Border Structure of Intercalary Heterochromatin Bands of Drosophila melanogaster Polytene Chromosomes.  Dokl. Biochem. Biophys. 479(1): 114--117.

FBrf0238923

Research paper

The precise genomic localization of the borders of 62 intercalary heterochromatin bands in Drosophila polytene chromosomes was determined. A new type of bands containing chromatin of different states was identified. This type is a combination of the gray band and the intercalary heterochromatin band, creating a genetic structure that with a light microscope is identified as a continuous band. The border structure of such bands includes the coding regions of genes with ubiquitous activity.