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Title: Registration of 'FC1028', 'FC1037, 'FC1038' and, 'FC1036' multigerm sugarbeet germplasm with multiple disease resistances

Author
item Panella, Leonard
item Lewellen, Robert
item McGrath, Jon

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 9/28/2012
Publication Date: 1/29/2013
Citation: Panella, L.W., Lewellen, R.T., McGrath, J.M. 2013. Registration of 'FC1028', 'FC1037, 'FC1038' and, 'FC1036' multigerm sugarbeet germplasm with multiple disease resistances. Journal of Plant Registrations. 7:229-237. DOI:10.3198/jpr2012.06.0002crg.

Interpretive Summary: FC1028, FC1036, FC1037, and FC1038 sugarbeet germplasms were released after testing under the designations 04-FC1028; 05-, 06-, 07-, 08-, 09-FC1036; 04-FC1037 and 04-FC1038, respectively. They were developed by the USDA-ARS, at Fort Collins, CO, Salinas, CA, and East Lansing, MI, in cooperation with the Beet Sugar Development Foundation (BSDF), Denver, CO. All four germplasms are multigerm sugarbeet populations in normal cytoplasm, segregating for self-sterility, multigerm seed balls, hypocotyl color and resistance to some strains of rhizomania. FC1028, FC1036, FC1037, and FC1038 all showed some tolerance to cercospora leaf spot and exhibited some tolerance to aphanomyces root rot (aphanomyces black root). All of the germplasms except FC1036 were moderately tolerant of beet curly top. Both FC1037 and FC1038 demonstrated some tolerance to rhizoctonia root rot, with FC1037 performing best. These populations may provide sources from which to select disease-resistant, multigerm pollinator parents. Because of a percent monogerm and O-type parentage, it should be possible to select monogerm, O-type, CMS maintainer lines from these germplasms as well.

Technical Abstract: ‘FC1028’, ‘FC1036’, ‘FC1037’, and ‘FC1038’ (PI 665053, PI 665054, PI 665055, PI 665056) sugarbeet germplasms (Beta vulgaris L.) were released from 20111027, 09-FC1036, 20111025, and 04-FC1038 seed lots, respectively, and tested under the designations 04-FC1028; 05-, 06-, 07-, 08-, 09-FC1036; 04-FC1037 and 04-FC1038, respectively. They were developed by the USDA-ARS, at Fort Collins, CO, Salinas, CA, and East Lansing, MI, in cooperation with the Beet Sugar Development Foundation, Denver, CO. All four germplasms are multigerm sugarbeet populations in normal cytoplasm, segregating for self-sterility (Sf:SsSs), multigermity (M:mm), hypocotyl color (R:rr) and the gene (Rz1:rz1rz1), which confers resistance to some strains of Beet necrotic yellow vein virus, the causal agent of rhizomania. FC1028, FC1036, FC1037, and FC1038 all showed some tolerance to cercospora leaf spot, caused by Cercospora beticola Sacc. and exhibited some tolerance to Aphanomyces cochlioides Drechsl., which causes aphanomyces root rot (aphanomyces black root), and all of the germplasms except FC1036 were moderately tolerant of Beet severe curly top virus. Both FC1037 and FC1038 demonstrated some tolerance to root-rotting strains (AG-2-2) of Rhizoctonia solani Kühn, with FC1037 performing best. These populations may provide sources from which to select disease-resistant, multigerm pollinator parents. Because of a percent monogermity and O-type parentage, it should be possible to select monogerm, O-type, CMS maintainer lines from these lines as well.