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Gene Information

Genotype Determination
Blonde affects the normal agouti-hair pigmentation in that the proximal regions of the hairs contain less pigmentation and the tips of the agouti hairs in the dorsal and lateral pelage do not possess black pigment. These effects combine to give the mutant animal a noticeably paler coloration than in the wild-type. The color dilution has a tan cast, in contrast to the grayer cast of the silver and platinum traits. Microscopically, the hairs contain somewhat fewer eumelanosomes than normal, and phaeomelanosomes are significantly reduced in the subterminal band. Skin and eye pigment are also affected. The skin surrounding the eye is unpigmented; the dorsal tail stripe is diluted to pale gray; and the ears have no obvious coloration. Choroidal pigment in the eye is reduced in the blonde deer mouse.
Strain Development
Source: In 1976 two mutant deer mice were discovered in a full-sib mating between two wild-type progeny from unrelated wild-captured P.m. bairdii collected near Lansing MI.
Primary Reference

For more information, please see Blonde on the Peromyscus Genetic Stock Center website.

Colony and Husbandry Information

Colony Surveillance Program and Current Health Reports

For more information about this colony's health status contact
Coat Color
Homozygous (bln/bln) coat color has a tan cast

Heterozygous (bln/+) are the same a wild-type.

MMRRC Breeding System
Not applicable; only cryopreserved sperm is available. The parent colony was sufficiently large to use a random breeding scheme
Breeding Scheme(s)
Not applicable; only cryopreserved sperm is available; mice cryorecovered (see below) can be bred Wild-type female x Wild-type male
Overall Breeding Performance
Peromyscus mice breed best in a 16:8 light / dark cycle.
Average litter size
Recommended wean age
25 days

Order Request Information

Male mice were obtained from the Peromyscus Genetic Stock Center as part of a long term project to develop cropreservation techniques for Peromyscus. Sperm have been cryopreserved and are available. However, cryorecovery techniques have yet to be developed.

Distribution of this strain requires submission of the MMRRC Conditions of Use (COU). A link to the COU web form will be provided via email after an order has been placed; the form should be completed then or the email forwarded to your institutional official for completion.

- Products for this strain are Not Yet Available for Ordering
- If you register interest in this strain, you will be notified when it becomes available for ordering.

To request material from the MMRRC: Please fill out our on-line request form (accessible from the catalog search results page, or click the Request this Strain button in the fees section). If you have questions or need assistance completing this form, you may call Customer Service at (800) 910-2291 (in USA or Canada) or (530) 757-5710 (international calls). Before you call, please have with you: the MMRRC item number, quantity needed, Bill-to and Ship-to contact information.