Glossary Element  molecular marker

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English term molecular marker
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English definition a molecular selection technique of DNA signposts which allows the identification of differences in the nucleotide sequences of the DNA in different individuals. <i>Agriculture</i>: a tool which allows crop geneticists and breeders to locate on a plant chromosome the genes for a trait of interest. It is considered more efficient than conventional breeding as it has the potential to greatly reduce development times and substitutes laboratory selection for much of the fieldwork. [CUB]
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