title: Our small relative.
authors.forename: Tim
authors.initials: T
authors.lastname: O'Brien
authors.forename: Rick
authors.initials: R
authors.lastname: Woychik
mesh_terms: D000818:Animals; D019143:Evolution, Molecular; D015870:Gene Expression; D016678:Genome; D023281:Genomics / Q000379:methods* / Q000639:trends*; D006801:Humans; D051379:Mice; D008810:Mice, Inbred C57BL / Q000235:genetics*; D023421:Models, Animal; D020161:Physical Chromosome Mapping