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Map-Based Cloning Of An Anthracnose Resistance Gene In Medicago Truncatula, Shengming Yang
Map-Based Cloning Of An Anthracnose Resistance Gene In Medicago Truncatula, Shengming Yang
University of Kentucky Doctoral Dissertations
Anthracnose, caused by the fungal pathogen Colletotrichum trifolii, is one of the most destructive diseases of alfalfa worldwide. Cloning and characterization of the host resistance (R) genes against the pathogen will improve our knowledge of molecular mechanisms underlying host resistance and facilitate the development of resistant alfalfa cultivars. However, the intractable genetic system of cultivated alfalfa, owing to its tetrasomic inheritance and outcrossing nature, limits the ability to carry out genetic analysis in alfalfa. Nonetheless, the model legume Medicago truncatula, a close relative of alfalfa, provides a surrogate for cloning the counterparts of many agronomically important genes in …