RT Journal Article SR Electronic T1 Parentage Analysis of Freedom Rootstock JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 357 OP 361 DO 10.5344/ajev.2009.60.3.357 VO 60 IS 3 A1 Garris, Amanda A1 Cousins, Peter A1 Ramming, David A1 Baldo, Angela YR 2009 UL http://www.ajevonline.org/content/60/3/357.abstract AB The rootstock Freedom is the offspring of two open-pollinated parents (1613-59 and Dog Ridge 5), sources of root-knot nematode resistance. As phylloxera has increased in importance in vineyards, the risk of Vitis vinifera-derived phylloxera susceptibility from the unknown pollen donors is a concern. To clarify the pedigree of Freedom, genetic profiles of 31 potential progenitors were analyzed with 30 microsatellite markers. We confirm the reported parent (1613-59) and grandparent (1613C) of Freedom and identify 3306C (V. riparia x V. rupestris) as the pollen parent of 1613-59. We were unable to identify the pollen parent of Dog Ridge 5.