ASSIGNMENT OF 5 POLYMORPHIC OVINE MICROSATELLITES TO BOVINE SYNTENIC GROUPS

A panel of bovine somatic cell hybrids was used to map ovine microsate llites. Five of seven microsatellites were assigned to five bovine syn tenic groups. These microsatellites were designated D5S10 (MAF23), D1S 4 (MAF46), D13S1 (MAF18), D4S3 (MAF50), and DXS2 (MAF45), mapped to sy ntenic groups U3 (chromosome 5), U10 (chromosome 1), U11, U13, and the X chromosome, respectively. Two remaining sheep microsatellites ampli fied rodent DNA in the hybrid somatic cell panel, and. were not assign ed to bovine syntenic groups. Assignment of ovine-derived microsatelli tes to bovine syntenic groups provides additional evidence of the usef ulness of microsatellites for mapping closely related species. The use of ovine and bovine microsatellites will aid in development of compar ative genomic maps for these two species.