passages.id: split_6_test_217_passage
passages.type: progene_text
passages.text: The AML1 and ETS families of transcription factors play critical roles in hematopoiesis ; AML1 , and its non - DNA - binding heterodimer partner CBFbeta , are essential for the development of definitive hematopoiesis in mice , whereas the absence of certain ETS proteins creates specific defects in lymphopoiesis or myelopoiesis .