title: Chemistry of odortypes in mice: Fractionation and bioassay.
abstract: Mice can discriminate samples of urine obtained from two groups of inbred mice that are genetically identical except in their major histocompatibility complex (MHC) haplotype (congenic mice), whereas they cannot distinguish urine samples from two genetically identical groups of mice. Chemical fractions of urine samples obtained from MHC congenic mice were tested in a Y-maze olfactometer using a method modified to accommodate the bioassay to chemical fractions that might differ in sensory properties from the unfractionated urine. Fractions depleted in protein by several methods were consistently discriminable by mice in the Y maze, providing a direct demonstration that the airborne MHC genotype information can be conveyed by volatile compounds alone.
authors.affiliation: Monell Chemical Senses Center, 3500 Market Street, 19104, Philadelphia, PA.
authors.forename: A G
authors.initials: AG
authors.lastname: Singer
authors.forename: H
authors.initials: H
authors.lastname: Tsuchiya
authors.forename: J L
authors.initials: JL
authors.lastname: Wellington
authors.forename: G K
authors.initials: GK
authors.lastname: Beauchamp
authors.forename: K
authors.initials: K
authors.lastname: Yamazaki