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University hazelnut breeding program carry this resistance. Recent hazelnut releases including ‘Jefferson’, ‘Yamhill’, ‘Dorris’, ‘Wepster’, and ‘McDonald’, the pollinizers ‘Eta’, ‘Theta’, ‘York’, and, ‘Felix’, and the ornamentals ‘Red Dragon’ and ‘Burgundy
expense to hazelnut production as a result of the need for copious fungicide sprays, scouting for cankers, and pruning of infected wood. Breeding for resistance to EFB is considered to be the most cost-effective means of control ( Johnson et al., 1996
zones that nearly span the latitudinal range of the United States. Thus, if systematically exploited for breeding interspecific hybrids, C. americana may enable the expansion of commercial hybrid hazelnut production to a wide portion of the eastern and
’, conferred by a dominant allele at a single locus ( Mehlenbacher et al., 1991 ), has been extensively used in the hazelnut breeding program at Oregon State University (OSU). Most resistant selections from the breeding program carry ‘Gasaway’ resistance. In
, breeders and growers in the eastern United States have made crosses between European and wild American hazelnuts in an attempt to combine the superior nut traits of the European species with the EFB tolerance of the wild American species. Breeding efforts
annotated in the version 1 (V1) genome sequence of ‘Jefferson’ produced by sequencing using Illumina (San Diego, CA) technology (Rowley et al., 2018). The hazelnut breeding programs at OSU and Rutgers University have identified more than 150 accessions
Hazelnut Commission and USDA-CSRS special grant 91-34242-5922. The cost publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this
State University (OSU) european hazelnut breeding program, resulting in the release of many advanced generation european hazelnut cultivars ( Mehlenbacher et al., 2009 , 2011 , 2013 , 2014 , 2016 ) and pollinizers ( Mehlenbacher and Smith, 2004
RADseq ( Peterson et al., 2012 ), SSR markers continue to have many research and breeding applications in plants. In hazelnut, for example, Özturk et al. (2017) studied associations of SSR markers with nut and kernel traits in a Slovenian hazelnut
Methods The hazelnut breeding program at Oregon State University (OSU), in cooperation with the U.S. Department of Agriculture, Agriculture Research Service, National Clonal Germplasm Repository (USDA-ARS-NCGR) in Corvallis, OR, imported scions of