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As a staple food crop for one-third of the world’s population,common wheat(Triticum aestivum L.,2n=6x=42,AABBDD)plays an important role in humans’food security.However,the genetic variation of cultivated wheat has been dramatically narrowed by genetic erosion under the modern cultivation system,resulting in vulnerability to biotic and abiotic stresses(Jiang et al.,1994;Friebe et al.,1996).The wild relatives of wheat represent
As an staple food crop for one-third of the world’s population, common wheat (Triticum aestivum L., 2n = 6x = 42, AABBDD) plays an important role in humans’food security. However, the genetic variation of cultivated wheat has been dramatically narrowed by genetic erosion under the modern cultivation system, resulting in vulnerability to biotic and abiotic stresses (Jiang et al., 1994; Friebe et al., 1996). The wild relatives of wheat representations