Thrombocytopenia, X-Linked, with or Without Dyserythropoietic Anemia, is also known as xdat, and has symptoms including petechiae of skin An important gene associated with Thrombocytopenia, X-Linked, with or Without Dyserythropoietic Anemia is GATA1 (GATA Binding Protein 1). Affiliated tissues include bone marrow and bone, and related phenotypes are cryptorchidism and hypochromic anemia