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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Two doses of the paternal Tme gene do not compensate the lethality of the Thp deletion.

The hairpin-tail (Thp) deletion in chromosome 17 is lethal when it is inherited from the mother, whereas heterozygotes with Thp deletion that is paternal in origin are viable. The lethal effect of maternal Thp is due to a deficiency of the Tme gene that is located in the Thp-deleted region. In this article we describe analysis of the viability of mice with tertiary trisomy of chromosome 17, Ts(17(16]43H, with different doses of the paternal and maternal Tme alleles. We demonstrate that the presence of an additional copy of the region with the Tme gene in the female gamete entirely compensates maternal Thp lethality. We failed to compensate the absence of the Tme gene from the chromosome of maternal derivation by two doses of Tme derived from the father. Thus evidence was obtained indicating that there are significant differences between the activities of the paternal and maternal alleles of the Tme gene due to chromosome imprinting.[1]

References

  1. Two doses of the paternal Tme gene do not compensate the lethality of the Thp deletion. Agulnik, A.I., Agulnik, S.I., Ruvinsky, A.O. J. Hered. (1991) [Pubmed]
 
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