Characterization and banding of mitotic chromosomes from two established cell lines of the German cockroach Blattella germanica

Abstract

A detailed analysis of karyology, chromosome measurement and chromosome contitution in different fell populations from 2 established cell lines of the German cockroach B. germanica is provided. All 12 pairs of chromosomes in somatic cells are clearly identifiable. All chromosomes except No. 5 display distinct C-bands. The G- and Q-banding patterns are not consistent, but many cross bands were observed. The N-banding pattern is reproducible and quite similar to the C-banding pattern. The cells in vitro as compared with cell in vivo are found to be extremely suitable for analysis of chromosomes of this species.