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Genetic linkage is the tendency of DNA sequences that are close together on a chromosome to be inherited together during the meiosis phase of sexual reproduction. Two genetic markers that are physically near to each other are unlikely to be separated onto different chromatids during chromosomal crossover, and are therefore said to be more linked than markers that are far apart. In other words, the nearer two genes are on a chromosome, the lower the chance of recombination between them, and the more likely they are to be inherited together. Markers on different chromosomes are perfectly unlinked.
Maize plants comprising resistance to southern leaf blight and compositions and methods for selecting and producing the same
The present application is related to markers which have been determined to be genetically linked to a locus which provides resistance to southern leaf blight (SLB). Maize plants comprising newly conferred or increased resistance to SLB, relative to control plants, are also provided herein.
Owner:PIONEER HI BREED INTERNATIONAL INC +1