In addition, the transcript expression profiles of PHR genes across different tissue types (root, leaf, bud, silique, and callus) and in response to exogenous ABA application, abiotic (light, drought, salt, and cold), and biotic stress conditions (Pectobacterium carotovorum infection) suggested PHR genes play important roles in plant growth and development and stress responses. Here, MYCBP2 is linked to Pectobacterium carotovorum infection.