Panahabadi, Rahele and Ahmadikhah, Asadollah and McKee, Lauren S. and Ingvarsson, Pär and Farrokhi, Naser
(2021).
Genome-Wide Association Mapping of Mixed Linkage (1,3;1,4)-beta-Glucan and Starch Contents in Rice Whole Grain.
Frontiers in Plant Science. 12
, 665745
[Research article]
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Abstract
The glucan content of rice is a key factor defining its nutritional and economic value. Starch and its derivatives have many industrial applications such as in fuel and material production. Non-starch glucans such as (1,3;1,4)-beta-D-glucan (mixed-linkage beta-glucan, MLG) have many benefits in human health, including lowering cholesterol, boosting the immune system, and modulating the gut microbiome. In this study, the genetic variability of MLG and starch contents were analyzed in rice (Oryza sativa L.) whole grain, by performing a new quantitative analysis of the polysaccharide content of rice grains. The 197 rice accessions investigated had an average MLG content of 252 mu g/mg, which was negatively correlated with the grain starch content. A new genome-wide association study revealed seven significant quantitative trait loci (QTLs) associated with the MLG content and two QTLs associated with the starch content in rice whole grain. Novel genes associated with the MLG content were a hexose transporter and anthocyanidin 5,3-O-glucosyltransferase. Also, the novel gene associated with the starch content was a nodulin-like domain. The data pave the way for a better understanding of the genes involved in determining both MLG and starch contents in rice grains and should facilitate future plant breeding programs.
Authors/Creators: | Panahabadi, Rahele and Ahmadikhah, Asadollah and McKee, Lauren S. and Ingvarsson, Pär and Farrokhi, Naser | ||||||
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Title: | Genome-Wide Association Mapping of Mixed Linkage (1,3;1,4)-beta-Glucan and Starch Contents in Rice Whole Grain | ||||||
Series Name/Journal: | Frontiers in Plant Science | ||||||
Year of publishing : | 2021 | ||||||
Volume: | 12 | ||||||
Article number: | 665745 | ||||||
Number of Pages: | 14 | ||||||
Publisher: | FRONTIERS MEDIA SA | ||||||
ISSN: | 1664-462X | ||||||
Language: | English | ||||||
Publication Type: | Research article | ||||||
Article category: | Scientific peer reviewed | ||||||
Version: | Published version | ||||||
Copyright: | Creative Commons: Attribution 4.0 | ||||||
Full Text Status: | Public | ||||||
Subjects: | (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Food Science | ||||||
Keywords: | candidate gene, GWAS, MLG, Oryza sativa, SNP, starch | ||||||
URN:NBN: | urn:nbn:se:slu:epsilon-p-116856 | ||||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-116856 | ||||||
Additional ID: |
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ID Code: | 27710 | ||||||
Faculty: | NJ - Fakulteten för naturresurser och jordbruksvetenskap | ||||||
Department: | (NL, NJ) > Dept. of Plant Biology and Forest Genetics (until 131231) | ||||||
Deposited By: | SLUpub Connector | ||||||
Deposited On: | 05 May 2022 14:25 | ||||||
Metadata Last Modified: | 05 May 2022 14:31 |
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