Phenotypes associated with this allele

• Allele Symbol: Mtv2^a
• Allele Name: mammary tumor virus locus 2, present
• Allele ID: MGI:3579297
• Summary: 1 genotype

Jump to	Allelic Composition	Genetic Background	Genotype ID
hm1	Mtv2^a/Mtv2^a	DDD.GR-Mtv2^a	MGI:3626069

Genotype
MGI:3626069

hm1

• Allelic Composition: Mtv2^a/Mtv2^a
• Genetic Background: DDD.GR-Mtv2^a

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

neoplasm

increased mammary adenocarcinoma incidence ( J:109201 )

• mammary tumors develop in 70-85% of breeders by approximately 7 months of age

• using the Dunn classification system, 47% of tumors are identified as pale cell, the remaining tumors are classified as Type A+B or type P

• mammary tumors develop in 58% of virgin females by approximately 10 months of age

• using the Dunn classification system 65% of tumors are identified as type A+B, the remaining tumors are classified as pale cell or type P

endocrine/exocrine glands

mammary gland alveolar hyperplasia ( J:109201 )

♀ • mice that do not develop palpable tumors exhibit tumorous lesions or hyperplastic nodules at one year

increased mammary adenocarcinoma incidence ( J:109201 )

• mammary tumors develop in 70-85% of breeders by approximately 7 months of age

• using the Dunn classification system, 47% of tumors are identified as pale cell, the remaining tumors are classified as Type A+B or type P

• mammary tumors develop in 58% of virgin females by approximately 10 months of age

• using the Dunn classification system 65% of tumors are identified as type A+B, the remaining tumors are classified as pale cell or type P

integument

mammary gland alveolar hyperplasia ( J:109201 )

♀ • mice that do not develop palpable tumors exhibit tumorous lesions or hyperplastic nodules at one year

increased mammary adenocarcinoma incidence ( J:109201 )

• mammary tumors develop in 70-85% of breeders by approximately 7 months of age

• using the Dunn classification system, 47% of tumors are identified as pale cell, the remaining tumors are classified as Type A+B or type P

• mammary tumors develop in 58% of virgin females by approximately 10 months of age

• using the Dunn classification system 65% of tumors are identified as type A+B, the remaining tumors are classified as pale cell or type P