Cytogenetics of autosomal fragile sites: A Basque population study

: Population cytogenetic data on autosomal fragile sites show differences among different ethnic groups. The Basques are an ancient population; their origin is not exactly known and many studies using several traits have shown peculiarities in the Basques. This is the first study about the incidence of autosomal fragile sites in a healthy Basque sample. The results show interindividual variability, no sex differences at a global level, but differences for some fragile sites. Compared with other populations, a higher incidence of rare autosomal fragile sites has been demonstrated (8%). © 1996 Wiley-Liss, Inc.