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Phenotypes Associated with This Genotype
Genotype
MGI:6163981
Allelic
Composition
Adamts9Mhdaund4/Adamts9+
Tg(Dct-lacZ)A12Jkn/0
Genetic
Background
involves: C3HeB/FeJ * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Adamts9Mhdaund4 mutation (1 available); any Adamts9 mutation (90 available)
Tg(Dct-lacZ)A12Jkn mutation (5 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• at P8, over half of mice exhibit an area of reduced melanoblasts in the tail unlike in wild-type mice
• however, distribution of melanoblasts in the dermis is normal

embryo
• at E18.5/P0, all mice exhibit an area of reduced melanoblasts in the tail compared with just over half of wild-type mice
• at P2, most mice exhibit an area of reduced melanoblasts in the tail compared with few wild-type mice
• at P8, over half of mice exhibit an area of reduced melanoblasts in the tail unlike in wild-type mice
• the boundaries of hypopigmentation are stable over time
• at P28, hypopigmented epidermis in the skin contains no lacZ-positive cells in the scales or hair with some scales at the edge being lightly pigmented and containing less dendritic melanocytes
• however, melanoblast distribution in the tail is normal at E16.5 and distribution of melanoblasts in the dermis is normal

integument
• at P8, over half of mice exhibit an area of reduced melanoblasts in the tail unlike in wild-type mice
• however, distribution of melanoblasts in the dermis is normal

nervous system
• at E18.5/P0, all mice exhibit an area of reduced melanoblasts in the tail compared with just over half of wild-type mice
• at P2, most mice exhibit an area of reduced melanoblasts in the tail compared with few wild-type mice
• at P8, over half of mice exhibit an area of reduced melanoblasts in the tail unlike in wild-type mice
• the boundaries of hypopigmentation are stable over time
• at P28, hypopigmented epidermis in the skin contains no lacZ-positive cells in the scales or hair with some scales at the edge being lightly pigmented and containing less dendritic melanocytes
• however, melanoblast distribution in the tail is normal at E16.5 and distribution of melanoblasts in the dermis is normal


Contributing Projects:
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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last database update
03/25/2025
MGI 6.24
The Jackson Laboratory