CRKL and chronic myelogenous leukemia, BCR-ABL1 positive: The current study has identified a miR‐429‐CRKL signalling axis that played an important role in CML, and provided a comprehensive mechanism for the tumorigenesis and erythroid differentiation of CML in which miR‐429 negatively regulates CRKL expression by targeting CRKL‐3′‐UTR.