Assessing the identity of the variety 'Pedro Gimenez' grown in Argentina through the use of microsatellite markers

作者：Duran Martin F^*; Agueero Cecilia B; Martinez Liliana E

来源：Revista de la Facultad de Ciencias Agrarias, 2011, 43(2): 193-202.

• grapevine
• Vitis vinifera
• microsatellites
• Pedro Gimenez

'Pedro Gimenez' is a white criolla variety cropped in Argentina, mainly in Mendoza and San Juan, being the most planted white variety destined for wine making in the country. Its origin remains unknown, as well as its relationship with Spanish variety 'Pedro Ximenez', mostly grown in Jerez, Spain. Previous works have probed that most of Criollas varieties existing in America at the moment, are the offspring of 'Muscat of Alexandria' x 'Criolla Chica'. The aim of the present work was to compare 'Pedro Gimenez' with the Spanish variety 'Pedro Ximenez', and to establish its degree of relatedness to 'Muscat of Alexandria' and 'Criolla Chica'. Therefore we used a set of 18 nuclear SSR loci and 3 chloroplast SSR loci. 'Pedro Gimenez' shared only 38% of the alleles under analysis with 'Pedro Ximenez', indicating that they are indeed two different varieties. In all 18 polymorphic nuclear SSR loci 'Pedro Gimenez' shared 50% of its alleles with 'Muscat of Alexandria', while the other 50% of the alleles present in 'Pedro Gimenez' were also present in 'Criolla Chica'. This data, along with those from the chloroplast SSR analysis, strongly suggest that 'Pedro Gimenez' is the progeny of 'Muscat of Alexandria' x 'Criolla Chica', being the latest one the most likely female progenitor.

• 出版日期2011-12