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Normal and Aberrant Palmar Creases in Twins and Siblings

Published online by Cambridge University Press:  01 August 2014

C. C. Plato ,
W. Wertelecki  and
J. T. Schwartz
C. C. Plato*
Affiliation:
National Institute on Aging, Gerontology Research Center, National Institutes of Health, Baltimore, Maryland, USA
W. Wertelecki
Affiliation:
Department of Medical Genetics, University of South Alabama, College of Medicine, Mobile, Alabama, USA
J. T. Schwartz
Affiliation:
Office of Biometry and Epidemiology, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
*
Gerontology Research Center, NICH, NIH, Baltimore City Hospital, Baltimore, Maryland, USA

Abstract

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The present study involving MZ and DZ twin pairs, as well as paired normal sibs, was undertaken to investigate further the genetic involvement in the formation of normal palmar crease patterns, as well as simian and Sydney patterns. Two variations of normal creases were investigated: the thenar type R and the distal type I. Both types cluster in families. The R is more frequent in the females. For both types, MZ twins are more concordant than DZ twins or sibs. Sib studies suggest strong genetic involvement in the development of both the R and I crease types. Parents with simian and/or Sydney creases have more children with these traits than offspring of parents without these traits; however, concordance rate comparisons of MZ or DZ twins and sibs do not suggest strong genetic involvement as in the case of the R and I crease types.

Type
5. Twin Studies in Human Genetics
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 25 , Issue 1 , January 1976 , pp. 174 - 176
Copyright
Copyright © The International Society for Twin Studies 1976

References

REFERENCES

Menser, M. A., Purvis-Smith, S. G. 1969. Dermatoglyphic defects in children with leukemia. Lancet, 1: 1076.Google Scholar
Plato, C. C., Cereghino, J. J., Steinberg, F. S. 1973. Palmar dermatoglyphics of Down's syndrome: revisited. Pediatr. Res., 7: 111–118.CrossRefGoogle ScholarPubMed
Purvis-Smith, S. G., Menser, M. A. 1973. Dermatoglyphics in leukemia. Br. Med. J., 4: 646–648.Google Scholar
Wertelecki, W., Plato, C. C., Fraumeni, J. F., Niswander, J. D. 1973. Dermatoglyphics in leukemia. Pediatr. Res., 7: 620–626.Google Scholar
Wertelecki, W., Plato, C. C. 1974a. Subclassification of normal palmar creases-A tool to assess prenatal development. Proc. 14th Congr. Pediatrics, Buenos Aires, Pediatria, 14: 108–111.Google Scholar
Wertelecki, W., Plato, C. C. 1974b. The simian and Sydney crease-A Survey. Proc. L.S. Penrose Memorial Colloquium on Dermatoglyphics, W. Berlin 1973.Google Scholar
Wertlecki, W., Plato, C. C. 1974c. Palmar flexion creases in birth defects and leukemia: a survey of 5000 individuals stressing normal ethnic, sex and familial differences. Proc. 14th Int. Congr. Pediatrics. Buenos Aires, Pediatria, 14: 111–113.Google Scholar