title: Thyroxine levels in agouti and non-agouti deer mice (Peromyscus maniculatus).
abstract: Total thyroxine was assessed by radioimmunoassay for 58 female deer mice of two subspecies (Peromyscus maniculatus bairdii and P. m. gracilis) and two color morphs (agouti and non-agouti). P. m. bairdii of both color-morphs had significantly higher mean thyroxine levels than P. m. gracilis. Non-agouti deer mice of both subspecies had significantly higher mean thyroxine levels than agouti deer mice. This is the first report of thyroid hormone differences associated with the non-agouti allele.
authors.affiliation: Department of Biology, Smith College, Northampton, MA 01063, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Lapseritis
authors.forename: V
authors.initials: V
authors.lastname: Hayssen
mesh_terms: D000375:Aging / Q000097:blood; D000818:Animals; D005260:Female; D010542:Peromyscus / Q000097:blood* / Q000145:classification; D013045:Species Specificity; D013974:Thyroxine / Q000097:blood*
chemical_list: D013974:Thyroxine