Non-cellulosic cell wall polysaccharides are subject to genotype times environment effects in sorghum (Sorghum bicolor) grain

Betts, Natalie S., Fox, Glen P., Kelly, Alison M., Cruickshank, Alan W., Lahnstein, Jelle, Henderson, Marilyn, Jordan, David R. and Burton, Rachel A. (2015) Non-cellulosic cell wall polysaccharides are subject to genotype times environment effects in sorghum (Sorghum bicolor) grain. Journal of Cereal Science, 63 64-71. doi:10.1016/j.jcs.2015.02.007


Author Betts, Natalie S.
Fox, Glen P.
Kelly, Alison M.
Cruickshank, Alan W.
Lahnstein, Jelle
Henderson, Marilyn
Jordan, David R.
Burton, Rachel A.
Title Non-cellulosic cell wall polysaccharides are subject to genotype times environment effects in sorghum (Sorghum bicolor) grain
Formatted title
Non-cellulosic cell wall polysaccharides are subject to genotype × environment effects in sorghum (Sorghum bicolor) grain
Journal name Journal of Cereal Science   Check publisher's open access policy
ISSN 0733-5210
1095-9963
Publication date 2015-05-01
Sub-type Article (original research)
DOI 10.1016/j.jcs.2015.02.007
Volume 63
Start page 64
End page 71
Total pages 8
Place of publication Camden, London, United Kingdom
Publisher Academic Press
Collection year 2016
Language eng
Formatted abstract
Sorghum is a staple food for half a billion people and, through growth on marginal land with minimal inputs, is an important source of feed, forage and increasingly, biofuel feedstock. Here we present information about non-cellulosic cell wall polysaccharides in a diverse set of cultivated and wild Sorghum bicolor grains. Sorghum grain contains predominantly starch (64–76%) but is relatively deficient in other polysaccharides present in wheat, oats and barley. Despite overall low quantities, sorghum germplasm exhibited a remarkable range in polysaccharide amount and structure. Total (1,3;1,4)-β-glucan ranged from 0.06 to 0.43% (w/w) whilst internal cellotriose:cellotetraose ratios ranged from 1.8 to 2.9:1. Arabinoxylan amounts fell between 1.5 and 3.6% (w/w) and the arabinose:xylose ratio, denoting arabinoxylan structure, ranged from 0.95 to 1.35. The distribution of these and other cell wall polysaccharides varied across grain tissues as assessed by electron microscopy. When ten genotypes were tested across five environmental sites, genotype (G) was the dominant source of variation for both (1,3;1,4)-β-glucan and arabinoxylan content (69–74%), with environment (E) responsible for 5–14%. There was a small G × E effect for both polysaccharides. This study defines the amount and spatial distribution of polysaccharides and reveals a significant genetic influence on cell wall composition in sorghum grain.
Keyword Sorghum
Grain
G × E
Cell wall
GxE
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Other title: "Beta-glucan, but not other non-cellulosic polysaccharides, is subject to significant GxE effects in sorghum grain".

 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 1 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 14 Apr 2015, 22:47:32 EST by Dr Glen Fox on behalf of Qld Alliance for Agriculture and Food Innovation