Phenotypes associated with this allele

• Allele Symbol: gri
• Allele Name: grey intense
• Allele ID: MGI:1856890
• Summary: 1 genotype

Jump to	Allelic Composition	Genetic Background	Genotype ID
hm1	gri/gri	C3H/HeSnJ-gri/J	MGI:2677907

Genotype
MGI:2677907

hm1

• Allelic Composition: gri/gri
• Genetic Background: C3H/HeSnJ-gri/J

• ♀: phenotype observed in females
• ♂: phenotype observed in males
• N: normal phenotype

The yellow phaeomelanin pigment band on the agouti hairs is lightened to give a greyish coat color in gri/gri mice

pigmentation

diluted coat color ( J:60438 )

• on an agouti background appearance resembles mice homozygous for the tyrosine allele chinchilla

• the yellow phaeomelanin pigment band on the agouti hairs is lightened to give an overall intense grey coat color

reproductive system

reduced male fertility ( J:60438 )

♂ • males, but not females, exhibit reduced fertility

♂ • no visible sperm abnormalities are seen

♂ • sperm counts were not done

homeostasis/metabolism

homeostasis/metabolism phenotype ( J:60438 )

N • do not appear to exhibit a clotting disorder (assessed by prothrombin time) as is seen in some coat-color-dilution mutants

growth/size/body

abnormal postnatal growth/weight/body size ( J:60438 )

abnormal body size ( J:60438 )

abnormal body weight ( J:60438 )

decreased body size ( J:60438 )

• visually, mutants appear smaller

decreased body weight ( J:60438 )

• compared to wild-type, mutants weigh less, although not significantly, at 2 weeks and 6 weeks

integument

diluted coat color ( J:60438 )

• on an agouti background appearance resembles mice homozygous for the tyrosine allele chinchilla

• the yellow phaeomelanin pigment band on the agouti hairs is lightened to give an overall intense grey coat color