TY - JOUR T1 - Parentage Analysis of Freedom Rootstock JF - American Journal of Enology and Viticulture JO - Am J Enol Vitic. SP - 357 LP - 361 DO - 10.5344/ajev.2009.60.3.357 VL - 60 IS - 3 AU - Amanda Garris AU - Peter Cousins AU - David Ramming AU - Angela Baldo Y1 - 2009/09/01 UR - http://www.ajevonline.org/content/60/3/357.abstract N2 - 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. ER -