2021
DOI: 10.1016/j.jcs.2021.103167
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Abstract: A combination of lipidomics, transcriptomics and bioimaging has been used to study triacylglycerol synthesis and deposition in the developing starchy endosperm of wheat. The content of TAG increased between 14 and 34 days after anthesis, from 50 to 115 mg/100 g dry wt and from about 35 to 175 mg/100 g dry wt in two experiments. The major fatty acids were C16 (palmitic C16:0 and palmitoleic C16:1) and C18 (stearic C18:0, oleic C18:1, linoleic C18:2 and linolenic C18:3), with unsaturated fatty acids accounting f… Show more

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Cited by 9 publications
(5 citation statements)
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“…Their synthesis and deposition are poorly understood. Although lipid droplets have been observed in starchy endosperm cells, it is also possible that certain lipids (including TAGs) are transferred from the aleurone and embryo to the flour during milling [83,85]. This gene was found to be highly expressed in spike and grain, which agrees with the strong association between this gene and spike-related traits detected by GWAS in our study.…”
Section: Gene Annotation For Yield-related Traitssupporting
confidence: 87%
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“…Their synthesis and deposition are poorly understood. Although lipid droplets have been observed in starchy endosperm cells, it is also possible that certain lipids (including TAGs) are transferred from the aleurone and embryo to the flour during milling [83,85]. This gene was found to be highly expressed in spike and grain, which agrees with the strong association between this gene and spike-related traits detected by GWAS in our study.…”
Section: Gene Annotation For Yield-related Traitssupporting
confidence: 87%
“…The common gene TraesCS7D02G375100 is associated with spike-related traits and GY in Lincoln, which is translated to CDP-choline: 1,2-diacylglycerol cholinephospho transfer. This gene plays a role in the storage of lipids inside the wheat grain [82,83]. Triacylglycerols (TAGs) are the major storage lipids in seeds, although they are only minor components in cultivated cereals (with the exception of oats, Avena sativa L.).…”
Section: Gene Annotation For Yield-related Traitsmentioning
confidence: 99%
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“…Further, our analyses of lipid content showed that all flour fractions had increased TAG content in AsWRI1 -wheat compared to in the control, with the bran fraction having the highest level. The aleurone layer and embryo of wheat are both rich in TAG (approximately 6% and 20% by dw, respectively) compared to the starchy endosperm cells with levels below 0.5% by dw [ 6 , 46 ]. Hence, the bran contamination of the flour fractions of the AsWRI1 -wheat would also result in the presence of TAGs derived from the aleurone layer and embryo, so the true contribution of lipids from the starchy endosperm cannot be determined.…”
Section: Discussionmentioning
confidence: 99%