Abstract
ABSTRACTTomato is among the first species to which molecular markers are applied extensively for genomic studies, tagging and map-based cloning of genes, marker-assisted selection and phylogenetic studies. More than 1000 RELP markers build a high density molecular linkage map that provides molecular access to any chromosomal region of interest. PCR techniques supply breeding programmes with additional markers (RAPDs and SCARs) which are suitable for diagnostic purposes by their virtue of being fast, safe and easy to automate By combining the RAPD assay with proper screening systems involving NILs or pools of genotypes, markers tigthly linked to a gene of interest can be identified which fapihtaie chromosome walking. Thus, molecular marker technology is bringing about a revolution in the practice of molecular genetics and plant breeding.
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