Genetic mapping of favorable traits in sugarcane cultivars

摘要: Genome mapping studies have been focussed on modern cultivars for a better understanding of their complex genomic structure. This resulted in the construction detailed RFLP linkage map and also investigation some aspects chromosome inheritance pairing behaviour cultivars. As complement, DNA situ hybridization chromosomes allowed assessment basic number ancestral species contribution to genome Comparative with distant diploid relatives revealed large amount structure conservation between species, especially sugarcane sorghum, lesser extent sugarcane, maize rice. Field experiment selfed progenies R570 identify major rust resistance gene several QTL yield components. These results showed that identification is possible despite high ploidy level cultivated clones. (Resume d'auteur)