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DIGIT RATIO (2D:4D), ABO BLOOD TYPE, AND THE RHESUS FACTOR.
- Source :
-
Perceptual & Motor Skills . Dec2008, Vol. 107 Issue 3, p737-746. 10p. 2 Charts. - Publication Year :
- 2008
-
Abstract
- Twin and family study findings indicate a substantial heritability of digit ratio (2D:4D), a putative marker for the masculinizing effects of prenatal androgen exposure. Functional polymorphisms of the X-linked androgen receptor gene, i.e., androgen sensitivity, contribute somewhat to the expression of 2D:4D in men, but otherwise the genetics of 2D:4D is unknown. This study investigated differences in 2D:4D by self-reported ABO blood type and Rhesus factor, two easily collectible genetic traits, in two samples (combined N= 1,273). Effects of blood groups on 2D:4D were small and not significant in all tests in both samples; however, two consistent patterns emerged across samples. Of the ABO types, AB had the lowest right-hand 2D:4D, the highest left-hand 2D:4D, and the lowest right-minus-left difference in 2D:4D, and Rhesus factor Rh- had higher left-hand 2D:4D and lower right-minus-left difference in 2D:4D than Rh+. If replicable, this may suggest genes contributing to the expression of 2D:4D reside in the vicinity of the gene loci (chromosomal locations: 9q34.2 and 1p36.11) of these blood groups or pleiotropic effects of the blood-group genes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00315125
- Volume :
- 107
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Perceptual & Motor Skills
- Publication Type :
- Academic Journal
- Accession number :
- 36313982
- Full Text :
- https://doi.org/10.2466/pms.107.3.737-746