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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Ph+
wild type
MGI:1857742
Summary 7 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
 		Ph3H/Ph+ C3H101HF1 x STOCK Ph3H/H MGI:2174700
ht2
 		Ph/Ph+ involves: C57BL/Gr MGI:3027108
ht3
 		Phe/Ph+ STOCK Ph MGI:2174702
cx4
 		Ph/Ph+
Rw/Rw+ 		involves: 101/H * C3H/HeH * C57BL/Gr MGI:4431079
cx5
 		Pax1un/Pax1un
Ph/Ph+ 		involves: C3HeB/FeJ * C57BL/6J MGI:3829367
cx6
 		KitW-v/Kit+
Ph/Ph+ 		involves: C57BL MGI:4431077
cx7
 		KitlSl-d/Kitl+
Ph/Ph+ 		involves: C57BL/Gr * DBA/2J MGI:4431080


Genotype
MGI:2174700
ht1
Allelic
Composition		 Ph3H/Ph+
Genetic
Background		 C3H101HF1 x STOCK Ph3H/H
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ph3H mutation (0 available); any Ph mutation (1 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation
variable body spotting ( J:27502 )
• white spotting

integument
variable body spotting ( J:27502 )
• white spotting




Genotype
MGI:3027108
ht2
Allelic
Composition		 Ph/Ph+
Genetic
Background		 involves: C57BL/Gr
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ph mutation (2 available); any Ph mutation (1 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation
variable body spotting ( J:125080 )
• heterozygotes have a large white patch of variable shape and size at the posterior extremity of the trunk, largely on the ventral side

integument
variable body spotting ( J:125080 )
• heterozygotes have a large white patch of variable shape and size at the posterior extremity of the trunk, largely on the ventral side




Genotype
MGI:2174702
ht3
Allelic
Composition		 Phe/Ph+
Genetic
Background		 STOCK Ph
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Phe mutation (0 available); any Ph mutation (1 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation
abnormal coat/hair pigmentation ( J:5811 )
• Phe/+ mice are very uniform in appearance, in contrast to Ph/+, and have a white trunk, legs, and tail, and a pigmented head and shoulders

integument
abnormal coat/hair pigmentation ( J:5811 )
• Phe/+ mice are very uniform in appearance, in contrast to Ph/+, and have a white trunk, legs, and tail, and a pigmented head and shoulders




Genotype
MGI:4431079
cx4
Allelic
Composition		 Ph/Ph+
Rw/Rw+
Genetic
Background		 involves: 101/H * C3H/HeH * C57BL/Gr
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ph mutation (2 available); any Ph mutation (1 available)
Rw mutation (3 available); any Rw mutation (4 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation
abnormal coat/hair pigmentation ( J:125080 )
• the head and shoulder region are almost fully pigmented, but the rest of the body is white although some pigment patches do occur
head spot ( J:125080 )
• a small head spot is occasionally found

integument
abnormal coat/hair pigmentation ( J:125080 )
• the head and shoulder region are almost fully pigmented, but the rest of the body is white although some pigment patches do occur
head spot ( J:125080 )
• a small head spot is occasionally found




Genotype
MGI:3829367
cx5
Allelic
Composition		 Pax1un/Pax1un
Ph/Ph+
Genetic
Background		 involves: C3HeB/FeJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pax1un mutation (6 available); any Pax1 mutation (27 available)
Ph mutation (2 available); any Ph mutation (1 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
nervous system
spina bifida occulta ( J:28396 )
• Background Sensitivity: spina bifida is more severe than seen with the mutation undulated alone

pigmentation

skeleton
spina bifida occulta ( J:28396 )
• Background Sensitivity: spina bifida is more severe than seen with the mutation undulated alone

embryo
spina bifida occulta ( J:28396 )
• Background Sensitivity: spina bifida is more severe than seen with the mutation undulated alone

integument




Genotype
MGI:4431077
cx6
Allelic
Composition		 KitW-v/Kit+
Ph/Ph+
Genetic
Background		 involves: C57BL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW-v mutation (9 available); any Kit mutation (177 available)
Ph mutation (2 available); any Ph mutation (1 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation
abnormal coat/hair pigmentation ( J:125080 )
• coat color is white except for some lightly diluted fur on the snout and sides of the head

integument
abnormal coat/hair pigmentation ( J:125080 )
• coat color is white except for some lightly diluted fur on the snout and sides of the head




Genotype
MGI:4431080
cx7
Allelic
Composition		 KitlSl-d/Kitl+
Ph/Ph+
Genetic
Background		 involves: C57BL/Gr * DBA/2J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitlSl-d mutation (3 available); any Kitl mutation (92 available)
Ph mutation (2 available); any Ph mutation (1 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation
abnormal coat/hair pigmentation ( J:125080 )
• the head and shoulder region have diluted pigment, and the rest of the body is white although some pigment patches do occur
head spot ( J:125080 )
• a small head spot is found occasionally

integument
abnormal coat/hair pigmentation ( J:125080 )
• the head and shoulder region have diluted pigment, and the rest of the body is white although some pigment patches do occur
head spot ( J:125080 )
• a small head spot is found occasionally




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Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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Send questions and comments to User Support. 		last database update
01/20/2026
MGI 6.24 		The Jackson Laboratory