Inheritance of the Robertsonian translocation (1/21) in the Holstein-Friesian cattle. I. Chromosome analysis.
A new type of Robertsonian translocation (1/21) was found in Holstein-Friesian breed, and transmitted through the three generations, namely from the bull to 6 out of 11 daughters and 4 out of 7 grand-daughters/sons. Although the father of the bull was not available for cytogenetical studies, it was ascertained that 5 half-sibs of the bull had a normal karyotype. By C-banded karyotypes, the 9 translocation carriers within the three generations had a dicentric centromere in the translocated chromosome. It seems that no morphological effects have been noted to be associated with the translocation in all cases.
Miyake
Y
Y
Laboratory of Theriogenology, Faculty of Agriculture, Iwate University, Morioka, Japan.
Murakami
R K
RK
Kaneda
Y
Y
D000818:Animals; D001947:Breeding; D002417:Cattle / Q000235:genetics*; D002503:Centromere / Q000648:ultrastructure; D002871:Chromosome Banding; D005260:Female; D007621:Karyotyping; D008297:Male; D008677:Metaphase; D010375:Pedigree; D014178:Translocation, Genetic