The gene for the β subunit of the follicle-stimulating hormone maps to bovine chromosome 15

Using a 1,500-bp cDNA specific for the β subunit of bovine follicle-stimulating hormone as a probe for in situ hybridization, I assigned the corresponding locus, FSHB, to bovine chromosome 15q24-qter. Previous assignments of the loci for /3-globin (HBB) and parathyroid hormone (PTH) to chromosome 15, along with my assignment, indicate the evolutionarily conserved synteny of these loci on the short arm of human chromosome 11 and on bovine chromosome 15. The analysis of the distribution of the autoradiographic silver grains suggests that FSHB is more distalty located than are HBB and PTH, contrary to the order of these loci on the short arm of human chromosome 11.