First Author | Ruvinsky I | Year | 2002 |
Journal | Mamm Genome | Volume | 13 |
Issue | 12 | Pages | 675-9 |
PubMed ID | 12514744 | Mgi Jnum | J:81166 |
Mgi Id | MGI:2448195 | Doi | 10.1007/s00335-002-2191-6 |
Citation | Ruvinsky I, et al. (2002) Genetics analysis of mouse mutations Abnormal feet and tail and rough coat, which cause developmental abnormalities and alopecia. Mamm Genome 13(12):675-9 |
abstractText | Mutations in the mouse Brachyury (T) gene are characterized by a dominant reduction of tail length and recessive lethality. Two quantitative trait loci, Brachyury-modifier 1 and 2 (Brm1 and Brm2) are defined by alleles that enhance the short-tail Brachyury phenotype. Here we report on a genetic analysis of a visible dominant mutation Abnormal feet and tail (Aft) located in the vicinity of Brm1. Affected animals display kinky tails and syndactyly in the hindlimbs, both likely resulting from a defect in apoptosis. We observed an unusual genetic incompatibility between Aft and certain genetic backgrounds. We show that Aft and T are likely to interact genetically, since some double heterozygotes are tailless. In addition to the tail and hindlimb phenotypes, Aft-bearing mutants display characteristic late-onset skin lesions. We therefore tested for allelism between Aft and a closely linked recessive mutation rough coat (rc) and found that these two mutations are likely nonallelic. Our results provide a valuable resource for the study of mammalian skin development and contribute to the genetic analysis of Brachyury function. |