The effects of distamycin A on gorilla-, chimpanzee- and orangutan lymphocyte cultures
作者:
M. Schmid,
A. Poppen,
W. Engel,
期刊:
Cytogenetic and Genome Research
(Karger Available online 1981)
卷期:
Volume 30,
issue 4
页码: 211-221
ISSN:1424-8581
年代: 1981
DOI:10.1159/000131612
出版商: S. Karger AG
数据来源: Karger
摘要:
Lymphocyte cultures from the gorilla, chimpanzee, and orangutan were treated with the oligopeptide antibiotic distamycin A. This AT-specific DNA-ligand induces a distinct undercondensation in the quinacrine-bright heterochromatin of the gorilla and chimpanzee. This is also the case in human lymphocyte cultures. Distamycin A further causes an undercondensation in the nonheterochromatic bands 17q21 of the gorilla and 16q22 of man. No visible distamycin A-sensitive chromosome regions were determined in the orangutan. The in vitro treatment with distamycin A preserves the somatic pairings between the quinacrine-bright heterochromatic regions existing in the interphase nucleus until the succeeding metaphase stage. The phylogenetic origin of the quinacrine-bright and distamycin A-sensitive heterochromatin in the ancestor of man, the gorilla, and the chimpanzee is discussed.
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