Genet. Res., Gamb. (1975), 25, pp. 193-195 With 1 plate Printed in Great Britain
193
Evidence that Linkage Group IV as well as Linkage Group X of the mouse are in chromosome 10* BY N. L. A. CACHEIRO AND LIANE B. RUSSELL Biology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830 USA {Received 5 January 1975) SUMMARY Four translocations in which one breakpoint was known to be at or closely linked to the LGIV marker Steel, SI, were studied in an attempt to identify cytologically the as yet unassigned Linkage Group IV of the mouse. The cytological results indicate that chromosome 10, which had previously been matched with LGX, is involved in each of the four translocations, the break being in 10D. Recombination between 81 and the LGX marker grizzled, gr, was determined to be 6-14%. The combined cytological and genetic results indicate that LGIV and LGX are both in chromosome 10, and that the order may be centromere-
193
Evidence that Linkage Group IV as well as Linkage Group X of the mouse are in chromosome 10* BY N. L. A. CACHEIRO AND LIANE B. RUSSELL Biology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830 USA {Received 5 January 1975) SUMMARY Four translocations in which one breakpoint was known to be at or closely linked to the LGIV marker Steel, SI, were studied in an attempt to identify cytologically the as yet unassigned Linkage Group IV of the mouse. The cytological results indicate that chromosome 10, which had previously been matched with LGX, is involved in each of the four translocations, the break being in 10D. Recombination between 81 and the LGX marker grizzled, gr, was determined to be 6-14%. The combined cytological and genetic results indicate that LGIV and LGX are both in chromosome 10, and that the order may be centromere-
