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The process of somatic embryogenesis (SE) leads to the development of embryos from somatic plant cells and is widely used in plant biotechnology for in vitro plant regeneration. Genes encoding transcription factors (TFs) are the most frequently represented among the identified SE regulators and among them, LEAFY COTYLEDON2 (LEC2), a master regulator of zygotic embryogenesis was indicated to be essential for SE induction in Arabidopsis. In support, overexpression of the LEC2 was indicated to promote SE induction in planta and in in vitro cultured explants, while the lec2 mutant showed inhibited embryogenic potential. The relationship of LEC2 and hormones during SE induction was indicated. Accordingly, auxin treatment was found to promote LEC2 expression in the embryogenic explant culture and overexpression of LEC2 significantly modified the hormone content in the seedlings including the …