A Complex Interaction of Imprinted and Maternal-Effect Genes Modifies Sex Determination in Odd Sex (Ods) Mice

Christophe Poirier, Yanjun Qin, Carolyn P Adams, Yanett Anaya, Jonathan B. Singer, Annie E. Hill, Eric S. Lander, Joseph H. Nadeau, Colin E. Bishop

Genetics · 2004 · 14 citations · 22 references

DOIFull text

Open access

Concepts

Abstract

The transgenic insertional mouse mutation Odd Sex (Ods) represents a model for the long-range regulation of Sox9. The mutation causes complete female-to-male sex reversal by inducing a male-specific expression pattern of Sox9 in XX Ods/+ embryonic gonads. We previously described an A/J strain-specific suppressor of Ods termed Odsm1(A). Here we show that phenotypic sex depends on a complex interaction between the suppressor and the transgene. Suppression can be achieved only if the transgene is transmitted paternally. In addition, the suppressor itself exhibits a maternal effect, suggesting that it may act on chromatin in the early embryo.

References

22