Genetic analysis of bolting after winter in sugar beet (Beta vulgaris L.).

Pfeiffer, Nina, Traenkner, Conny, Lemnian, Ioana, Grosse, Ivo, Mueller, Andreas E., Jung, Christian and Kopisch-Obuch, Friedrich J. (2014) Genetic analysis of bolting after winter in sugar beet (Beta vulgaris L.). Theoretical and Applied Genetics, 127 (11). pp. 2479-2489. DOI 10.1007/s00122-014-2392-x.

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This study reveals for the first time a major QTL for post-winter bolting resistance in sugar beet ( Beta vulgaris L.). The knowledge of this QTL is a major contribution towards the development of a winter sugar beet with controlled bolting behavior. In cool temperate climates, sugar beets are currently grown as a spring crop. They are sown in spring and harvested in autumn. Growing sugar beet as a winter crop with an extended vegetation period fails due to bolting after winter. Bolting after winter might be controlled by accumulating genes for post-winter bolting resistance. Previously, we had observed in field experiments a low post-winter bolting rate of 0.5 for sugar beet accession BETA 1773. This accession was crossed with a biennial sugar beet with regular bolting behavior to develop a F-3 mapping population. The population was grown in the greenhouse, exposed to artificial cold treatment for 16 weeks and transplanted to the field. Bolting was recorded twice a week from May until October. Post-winter bolting behavior was assessed by two different factors, bolting delay (determined as days to bolt after cold treatment) and post-winter bolting resistance (bolting rate after winter). For days to bolt, means of F-3 families ranged from 25 to 164 days while for bolting rate F-3 families ranged from 0 to 1. For each factor one QTL explaining about 65 % of the phenotypic variation was mapped to the same region on linkage group 9 with a partially recessive allele increasing bolting delay and post-winter bolting resistance. The results are discussed in relation to the potential use of marker-assisted breeding of winter sugar beets with controlled bolting.

Document Type: Article
Additional Information: Times Cited: 0 Krammel, Vera/N-4826-2014 Krammel, Vera/0000-0002-8273-8396 0
Keywords: Quantitative Trait Locus Amplify Fragment Length Polymorphism Sugar Beet Quantitative Trait Locus Analysis Cold Treatment
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1007/s00122-014-2392-x
ISSN: 0040-5752
Projects: Future Ocean
Date Deposited: 30 Mar 2015 12:39
Last Modified: 10 Jul 2019 13:24

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