Absence of an acid phosphatase isozyme locus as a marker candidate for true to typeness in woodland grape (Vitis vinifera L. ssp. sylvestris Gmelin)

Abstract

<p style="text-align: justify;">The quest and conservation of existing populations of woodland grape (<em>Vitis vinifera</em> L. ssp. <em>sylvestris</em> Gmelin), the supposed progenitor of the European grapevine (<em>Vitis vinifera</em> L. ssp. <em>sativa</em>) and a significant actor in the evolution of grapevine, has great importance in preserving biodiversity. The proof of true-to-typeness is highly important in ex-situ conservation, because the contamination risk of the woodland grape populations is very high. Some characteristic “<em>sylvestris</em>” simple sequence repeats (SSR) alleles were identified, but they are only characteristic in a specific population.</p><p style="text-align: justify;">In our recent study, the SSR profiles of 32 woodland grapes were compared to those of 16 European grapevine varieties and 20 rootstocks. Morphology and SSR analyses suggested that the analysed <em>Vitis vinifera</em> ssp. <em>sylvestris</em> Gmelin accessions were true-to-type. In this report, the results of the acid phosphatase isoenzyme analyses of the same woodland grape accessions are presented and a new marker for true-to-typeness is suggested.</p>