Abstract
Molecular markers have been frequently used to differentiate grape species and cultivars. There are fewer cases where molecular markers have been used to differentiate grape clones within a cultivar, or for the demarcation of somatic mutants from parental clones. This study reports the first successful utility of AFLPs for the differentiation of somatic mutants from their parental grapevine line, and discusses the potential for similar AFLP applications. The somatic mutant analysed demonstrates earlier budburst characteristics than the Flame Seedless line from which is arose. Analysis of 64 AFLP primer combinations in silver stained polyacrylamide produced in excess of 3000 markers in Vitis vinifera, and provided two markers which differentiated the somatic mutant, from its parental line. One marker was 440 bpin length and was produced with primer combinationEcoR1-AT and Mse1-CTT. The second marker was 340 bp in length and generated with primer combination EcoR1-TC and Mse1-CAC.
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