Journal article

Quantitative Trait Loci and Maternal Effects Affecting the Strong Grain Dormancy of Wild Barley (Hordeum vulgare ssp spontaneum)

Shingo Nakamura, Mohammad Pourkheirandish, Hiromi Morishige, Mohammad Sameri, Kazuhiro Sato, Takao Komatsuda

FRONTIERS IN PLANT SCIENCE | FRONTIERS MEDIA SA | Published : 2017

Abstract

Wild barley (Hordeum vulgare ssp. spontaneum) has strong grain dormancy, a trait that may enhance its survival in non-cultivated environments; by contrast, cultivated barley (Hordeum vulgare ssp. vulgare) has weaker dormancy, allowing uniform germination in cultivation. Malting barley cultivars have been bred for especially weak dormancy to optimize their use in malt production. Here, we analyzed the genetic mechanism of this difference in seed dormancy, using recombinant inbred lines (RILs) derived from a cross between the wild barley accession 'H602' and the malting barley cultivar 'Kanto Nakate Gold (KNG)'. Grains of H602 and KNG harvested at physiological maturity and dried at 30°C for 7..

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Grants

Awarded by Japanese Ministry of Agriculture, Forestry and Fisheries (Genomics for Agricultural Innovation)


Awarded by Japanese Ministry of Agriculture, Forestry and Fisheries (Genomics-Based Technology for Agriculture Improvement)


Funding Acknowledgements

This research was financially supported by grants from the Japanese Ministry of Agriculture, Forestry and Fisheries (Genomics for Agricultural Innovation, TRC-1002 and TRG-1002, and Genomics-Based Technology for Agriculture Improvement, TRS-1001).