The Mustard family (Brassicaceae or Cruciferae) is one of the large families of flowering plants in the plant kingdom, belonging to the order Brassicales, with a total of 338 genera and about 4000 species distributed globally on all continents except Antarctica (Anjum et al. 2012). Although different species of the Brassicaceae family have limited distribution areas, especially in mountainous regions in the tropics (subalpine and alpine habitats in some East African countries, especially in Kenya, Tanzania and Ethiopia), this family is generally widely distributed in different habitats of the temperate regions of the Northern and Southern Hemispheres (Koch and Kiefer 2006). The family comprises herbs and shrubs with a sharp, strong taste, due to the presence of glucosinolates. The family is known for its prominent cross-shaped flowers, and the species specific to this family typically have simple, alternately arranged leaves; tetradyn stamens; and a carpel that matures into a capsular fruit known as a silique (Jabeen 2020). Many plant species in this family, especially the genus Brassica, have made significant contributions to almost every field of modern plant biology, especially in the development of model species and model generic systems of economic and agricultural importance (Koch and Mummenhoff 2006; Anjum et al. 2012); many of its species are widely grown cultivated forms, especially cabbage, broccoli, Brussels sprouts and cauliflower, plants of great importance in human health and food safety on a global scale (Bailey et al. 2006).