Summary
A simple and reliable statistical method is proposed to distinguish real fragile sites from the casual accumulation of aberrations that can occur as a consequence of random distribution. It is based on a study of the expected random distribution, assumed to be equal to a Poisson distribution, with the expected value of events per band as the mean.
Similar content being viewed by others
References
Armitage P (1971) Statistical methods in medical research. Blackwell, Oxford
Barbi G, Steinbach P, Vogel W (1984) Nonrandom distribution of methotrexate-induced aberrations on human chromosomes. Detection of further folic acid-sensitive fragile sites. Hum Genet 68:290–294
Craig-Holmes AP, Strong LC, Goodacre A, Pathak S (1987) Variation in the expression of aphidicolin-induced fragile sites in human lymphocyte cultures. Hum Genet 76:134–137
Glover TW, Berger C, Coyle J, Echo B (1984) DNA polymerase α inhibition by aphidicolin induces gaps and breaks at common fragile sites in human chromosomes. Hum Genet 67:136–142
Kano Y, Little JB (1986) Site-specific chromosomal rearrangements induced in human diploid cells by x-irradiation. Cytogenet Cell Genet 41:22–29
Li N, Wu Y, Zhou XT (1986) Human chromosome hot points. V. The effects of four nucleosides on chromosomes in folate-free medium. Hum Genet 74:101–103
Marchese CA, Ming SL, Wilson MG (1984) Comparison of expression of the fragile site at Xq27 in T and B lymphocytes. Hum Genet 67:213
Nagesh Rao P, Heerema NA, Palmer CG (1988) Fragile sites induced by FUdR, caffeine, and aphidicolin—their frequency, distribution, and analysis. Hum Genet 78:21–26
Xinzhi Li, Yan ZA, Zhou XT (1986) The effect of 1-β-arabinofuranosyl-cytosine on the expression of the common fragile site at 3p14. Hum Genet 74:444–446
Yunis JJ, Soreng AL, Bowe AB (1987) Fragile sites are targets of diverse mutagens and carcinogens. Oncogene 1:59–69
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mariani, T. Fragile sites and statistics. Hum Genet 81, 319–322 (1989). https://doi.org/10.1007/BF00283683
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00283683