International Sugar Journal

Genomic organization of sugarcane cultivars revealed by chromosome-specific oligonucleotide probes [Full subscriber]

Abstract         Sugarcane (Saccharum spp.) is probably the crop with the most complex genome.  Modern cultivars (2n=100-120) are derived from interspecific hybridization between the noble cane S. officinarum (2n=80) and the wild cane S. spontaneum (2n=40-128).  We investigated the genome organization of important sugarcane cultivars and their parental species using chromosome-specific probes combined with genomic in situ hybridization (GISH).  This allowed the genomic and genetic characterisation of Australian sugarcane cultivars and one of the major contributing parental clones, Mandalay.  The S. spontaneum clone Mandalay follows the classical organization of S. spontaneum clones with x=8 with a major discrepancy related to an…

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