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Ciência e Técnica Vitivinícola

versão impressa ISSN 0254-0223

Resumo

REGNER, F.; EIRAS-DIAS, J.E.; STADLBAUER, Alexandra  e  BLAHOUS, D.. “Blauer Portugieser”, The Dissemination of a Grapevine. Ciência Téc. Vitiv. [online]. 1999, vol.14, n.2, pp.37-44. ISSN 0254-0223.

“Blauer Portugieser” is planted on more than 20,000 ha and therefore belongs to the top 60 cultivars for viticulture worldwide. Although its growing area decreases slightly, due to numerous off springs the gene pool of this variety is still growing and will further be used for practical viticulture. In this study we used more than 30 SSR markers to investigate the origin of the cultivar. The DNA was prepared from fresh young leaves of plant material from the germplasm collections of Portugal and of Austria. The analyses by microsatellites reveal at 32 SSR loci that the cultivar, “Blauer Portugieser” is identical to “Português Azul”. Despite several common alleles two types of Moreto could not be recognized as closely or directly related . Furthermore two colour types (green and grey) of Blauer Portugieser with minor economic importance were analysed at all SSR loci and couldn`t be differentiated by SSR markers involved in this study.

Palavras-chave : SSR markers; microsatellites; Vitis vinifera .

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