Eiberg H, Mohr J
University Institute of Medical Genetics, Copenhagen, Denmark.
Clin Genet. 1987 Aug;32(2):125-8. doi: 10.1111/j.1399-0004.1987.tb03339.x.
Red hair color (RHC) was studied in a Danish material of normal families that was tested earlier for 65 marker systems. We found 4.85% of the parents to be red-haired or to have been so early in life. Scoring RHC for linkage as an autosomal dominant against blond and as hypostatic to dark hair gave a lod score of z = 5.50 at theta = 0.05 in males and theta = 0.24 in females for the MNS blood group system; this assigns a major locus for red hair to chromosome 4.
在丹麦一个正常家庭的样本中对红头发色(RHC)进行了研究,该样本早前已针对65个标记系统进行过检测。我们发现4.85%的父母是红头发或早年曾是红头发。将RHC作为常染色体显性性状与金色头发进行连锁分析,并作为黑发的下位性状,对于MNS血型系统,在男性中θ = 0.05时连锁值(lod score)为z = 5.50,在女性中θ = 0.24时连锁值为z = 5.50;这将红头发的一个主要基因座定位到了4号染色体上。