Linkage data at Skts5. Eighteen markers mapping to chromosome 12 were genotyped in 351 NIH/Ola × (NIH/Ola × spretus outbred) backcross mice. Analysis using WinQTLcart shows two peak linkages. Skts15 maps to proximal chromosome 12 and Skts5 maps to chromosome 12 with a peak linkage at ABI marker E_29.924 (35 Mb, 17 cM). The one negative lod confidence interval is marked by a dotted line.