The present disclosure encompasses methods for generating cells or tissue from existing cells with one or more mutated variants of Yap. In specific embodiments, the disclosure regards treatment of existing cardiomyocytes with one or more mutated variants of Yap that causes them to divide and generate new cardiomyocytes. In specific cases, the mutated variant of Yap has serine-to-alanine substitutions at 1, 2, 3, 4, 5, 6, or more serines of Yap.
