Preliminary Identification and Analysis of Transcription Factor Families in Moringa oleifera Lam.

Transcription factors play an important role in plant growth and development by means of activating or inhibiting the expression of genes at the level of transcription, and maintain normal physiological activity that response to the internal and external stimulus. Based on published genome analyses of the Moringa oleifera Lam., 1 502 identified transcription factors of M.oleifera in this study belong to 86 families, and 43 factors were under positive selection in comparison with Arabidopsis thaliana. Plus, these genes involve in plant growth and development in different periods, and are closely related to plant disease resistance, environmental stress during these times. Herein our results have shown the Hsf domain of most HSF proteins in M. oleifera is a highly conservative region, and the phylogeny of HSF proteins in A. thaliana and M.oleifera could demonstrate its evolutionary history. These results could provide a solid foundation for responding to stress of drought, high salt, high temperature, pathogen invasion, and the expression of growth-related gene at the molecular level.