Paternal transmission of the mouse Thp mutation is lethal in some genetic backgrounds.
Thp is a large deletion on chromosome 17 which includes the maternal lethal gene Tme. Documentation of inheritance patterns suggests that Tme is an imprinted gene which is required for viability; maternal deletion is lethal while paternal deletion is viable. However, paternal transmission of Thp is rarely the expected 50%. We show here that paternally inherited Thp is lethal in some strains, providing evidence of an incompletely penetrant, dosage sensitive lethal allele of a locus that probably maps to the hairpin tail region of chr. 17. Interpretation of the various phenotypes associated with loss of the putative Tme gene, Igf2r, may need to be revised in view of these observations.[1]References
- Paternal transmission of the mouse Thp mutation is lethal in some genetic backgrounds. Rogers, I., Okano, K., Varmuza, S. Dev. Genet. (1997) [Pubmed]
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