Omitting 1137 loci that are included in the location database but have
only cytogenetic assignment, there are 605 loci in the integrated map
that synthesizes physical and genetic data and subsumes a composite p
hysical location, cytogenetic and regional assignments, mouse homology
, rank, and references. With error filtration and allowance for interf
erence the genetic length is 211 cM, to which the p arm contributes 10
0 cM. The physical length is 164 Mb, with 62 Mb in the p arm. Current
problems in map integration are discussed and some solutions proposed.
(C) 1994 Academic Press, Inc.