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Fine Mapping of qDor7, a Major QTL Affecting Seed Dormancy in Sorghum (Sorghum bicolor (L.) Moench)

Li, Pan and Mace, Emma S. and Guo, Yan and Han, Lijie and Wang, Mumu and He, Yanfang and Chen, Jun and Yuyama, Nana and Jordan, David R. and Cai, Hongwei (2016) Fine Mapping of qDor7, a Major QTL Affecting Seed Dormancy in Sorghum (Sorghum bicolor (L.) Moench). Tropical Plant Biology . ISSN 1935-9756

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Article Link(s): http://dx.doi.org/10.1007/s12042-016-9169-0

Abstract

Seed dormancy is a key domestication trait for major crops, which is acquired in long-term systems development processes and enables the survival of plants in adverse natural conditions. It is a complex trait under polygenic control and is affected by endogenous and environmental factors. In the present study, a major seed dormancy QTL in sorghum (Sorghum bicolor (L.) Moench), qDor7, detected previously, was fine mapped using a large, multi-generational population. The qDor7 locus was delimited to a 96-kb region which contains 16 predicted gene models. These results lay a solid foundation for cloning qDor7. In addition, the functional markers tightly linked to the seed dormancy QTL may be used in marker-assisted selection for seed dormancy in sorghum.

Item Type:Article
Business groups:Crop and Food Science
Keywords:Sorghum – Seed dormancy – QTL – Fine mapping – Candidate gene
Subjects:Science > Biology > Genetics > Quantitative genetics (esp. Quantitative Trait Loci (QTL) articles)
Science > Botany > Genetics
Plant culture > Field crops > Sorghum
Deposited On:16 May 2016 03:09
Last Modified:16 May 2016 03:09

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