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

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Li, P., Mace, E. S., Guo, Y., Han, L., Wang, M., He, Y., Chen, J., Yuyama, N., Jordan, D. R. and Cai, H. (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: 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
Live Archive:16 May 2016 03:09
Last Modified:03 Sep 2021 16:50

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