QTL associated with barley (Hordeum vulgare) feed quality traits measured through in situ digestion
Article
Article Title | QTL associated with barley (Hordeum vulgare) feed quality traits measured through in situ digestion |
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ERA Journal ID | 5306 |
Article Category | Article |
Authors | Gous, Peter W. (Author), Martin, Anke (Author), Lawson, Wendy (Author), Kelly, Alison (Author), Fox, Glen P. (Author) and Sutherland, Mark W. (Author) |
Journal Title | Euphytica: international journal on plant breeding |
Journal Citation | 185 (1), pp. 37-45 |
Number of Pages | 9 |
Year | 2012 |
Publisher | Springer |
Place of Publication | Netherlands |
ISSN | 0014-2336 |
1573-5060 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s10681-011-0608-6 |
Web Address (URL) | https://link.springer.com/article/10.1007/s10681-011-0608-6 |
Abstract | Barley (Hordeum vulgare) is a major feed source for the intensive livestock industry. Competitiveness against other cereal grains depends largely on the price per unit of expressed feed quality. The traits which contribute to feed quality in barley are largely quantitative in nature but little is known about their genetic control. A study to identify the quantitative trait loci (QTLs) associated with feed quality was performed using a F6-derived recombinant inbred barley population. Samples from each line were incubated in the rumen of fistulated cattle, recovered, washed and dried for determination of in situ dry matter digestibility. Additionally, both pre- and post-digestion samples were analysed to quantify the content of key quality components relating to acid detergent fibre, total starch and protein. The data was used to identify trait-associated QTLs. Genetic analysis identified significant QTLs on chromosomes 2H, 5H and 7H. Genetic markers linked to these QTL should provide an effective tool for the selection and improvement of feed barley in the future. |
Keywords | ADF; barley; DMD; feed quality; protein; QTL; starch |
ANZSRC Field of Research 2020 | 310506. Gene mapping |
300406. Crop and pasture improvement (incl. selection and breeding) | |
350715. Quality management | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre for Systems Biology |
Department of Employment, Economic Development and Innovation, Queensland | |
University of Queensland | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q15z2/qtl-associated-with-barley-hordeum-vulgare-feed-quality-traits-measured-through-in-situ-digestion
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