An unusual variant chromosome 9 with an extra C-negative, G-dark segment in the short arm
- 23 April 2008
- journal article
- research article
- Published by Wiley in Clinical Genetics
- Vol. 28 (2) , 162-165
- https://doi.org/10.1111/j.1399-0004.1985.tb00377.x
Abstract
An unusual variant chromosome 9 is described in a mother and a daughter: an extra G-dark, C-negative and G-11 negative chromosomal segment is present in the short arm in the absence of apparent phenotypic effects. This extra material is also Ag-As negative and exhibits a fluorescence similar in intensity to that of band 9q21 when stained by QFQ and DAPI/AMD, and to that of band 9p13 in RBA-banded preparations; it is slightly less fluorescent when R-banded by chromomycin A3. The possibility of an association with an increased risk of spontaneous abortion is presented.Keywords
This publication has 11 references indexed in Scilit:
- Dic(21;21) in a Down's syndrome child with an unusual chromosome 9 variant in the mother.Journal of Medical Genetics, 1980
- Simultaneous fluorescent staining of R bands and specific heterochromatic regions (DA-DAPI bands) in human chromosomesCytogenetic and Genome Research, 1980
- A G‐band study of chromosomes in liveborn infantsAnnals of Human Genetics, 1980
- C- and Q-band polymorphisms in the chromosomes of three human populationsAnnals of Human Genetics, 1976
- Visualization of nucleolar organizer regions in mammalian chromosomes using silver stainingChromosoma, 1975
- A simple technique for demonstrating centromeric heterochromatinExperimental Cell Research, 1972
- Staining of Some Specific Regions of Human Chromosomes, particularly the Secondary Constriction of No. 9Nature New Biology, 1972
- A RAPID BANDING TECHNIQUE FOR HUMAN CHROMOSOMESThe Lancet, 1971