Incomplete meiotic sex chromosome inactivation in the domestic dog

1 Department of Developmental Biology, Erasmus MC, University Medical Center, Rotterdam, 3000 CA, The Netherlands

2 Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, 3000 CA, The Netherlands

3 Department of Pathology, Erasmus Optical Imaging Centre, Rotterdam, 3000 CA, The Netherlands

4 Erasmus Center for Biomics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands

5 Present address: Institut Curie, Genetics and Developmental Biology, Unit 11 et 13 rue Pierre et Marie Curie, Paris, 75248, Cedex 05, France