Selective extract from the genetic information pattern of the genome (entire genetic material). This extract plays a decisive role in determining grape varieties in the context of molecular genetics. Due to the immense amount of information, the focus is on a few selected excerpts. Their information content can then be summarised as a "genetic fingerprint", which can be used to characterise varieties genotypically and re-identify them once they have been defined. In contrast, previously only the phenotype could be used for this purpose. This only represents external, visually recognisable characteristics such as berry colour, berry shape and the shape of the leaves. See also chromosome, DNA and vine systematics.
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Sigi Hiss
freier Autor und Weinberater (Fine, Vinum u.a.), Bad Krozingen