scholarly journals The A to B of starch granule formation in wheat endosperm

2019 ◽  
Vol 71 (1) ◽  
pp. 1-3
Author(s):  
James R Lloyd
Keyword(s):  
Size Distribution ◽  
Starch Granule ◽  
Granule Size ◽  
Carbohydrate Binding ◽  
Dependent Manner ◽  
Granule Formation ◽  
Polyploid Wheat ◽  
Carbohydrate Binding Protein ◽  
Experimental Botany ◽  
Dose Dependent

This article comments on: Chia T, Chirico M, King R et al. 2019. A carbohydrate-binding protein, B-granule content 1 influences starch granule-size distribution in a dose dependent manner in polyploid wheat. Journal of Experimental Botany 70, 105–115.

scholarly journals A carbohydrate-binding protein, B-GRANULE CONTENT 1, influences starch granule size distribution in a dose-dependent manner in polyploid wheat

2019 ◽  
Vol 71 (1) ◽  
pp. 105-115 ◽  
Author(s):  
Tansy Chia ◽  
Marcella Chirico ◽  
Rob King ◽  
Ricardo Ramirez-Gonzalez ◽  
Benedetta Saccomanno ◽  
...  
Keyword(s):  
Size Distribution ◽  
Starch Granule ◽  
Starch Synthesis ◽  
Granule Size ◽  
Starch Granules ◽  
Grain Development ◽  
Polyploid Wheat ◽  
Gene Dose ◽  
Dose Dependent ◽  
B Granules

Abstract In Triticeae endosperm (e.g. wheat and barley), starch granules have a bimodal size distribution (with A- and B-type granules) whereas in other grasses the endosperm contains starch granules with a unimodal size distribution. Here, we identify the gene, BGC1 (B-GRANULE CONTENT 1), responsible for B-type starch granule content in Aegilops and wheat. Orthologues of this gene are known to influence starch synthesis in diploids such as rice, Arabidopsis, and barley. However, using polyploid Triticeae species, we uncovered a more complex biological role for BGC1 in starch granule initiation: BGC1 represses the initiation of A-granules in early grain development but promotes the initiation of B-granules in mid grain development. We provide evidence that the influence of BGC1 on starch synthesis is dose dependent and show that three very different starch phenotypes are conditioned by the gene dose of BGC1 in polyploid wheat: normal bimodal starch granule morphology; A-granules with few or no B-granules; or polymorphous starch with few normal A- or B-granules. We conclude from this work that BGC1 participates in controlling B-type starch granule initiation in Triticeae endosperm and that its precise effect on granule size and number varies with gene dose and stage of development.

scholarly journals Comparison of the GFFF and LALLS Methods for the Measurement of Starch Granule Size Distribution in Spring Barley Caryopses

2002 ◽  
Vol 108 (2) ◽  
pp. 200-203 ◽  
Author(s):  
V. Psota ◽  
I. Bohačenko ◽  
J. Hartmann ◽  
M. Budinská ◽  
J. Chmelík
Keyword(s):  
Size Distribution ◽  
Starch Granule ◽  
Spring Barley ◽  
Granule Size

Genome-wide association mapping of starch granule size distribution in common wheat

2017 ◽  
Vol 77 ◽  
pp. 211-218 ◽  
Author(s):  
Jieyun Li ◽  
Awais Rasheed ◽  
Qi Guo ◽  
Yan Dong ◽  
Jindong Liu ◽  
...  
Keyword(s):  
Association Mapping ◽  
Size Distribution ◽  
Common Wheat ◽  
Starch Granule ◽  
Granule Size ◽  
Genome Wide Association ◽  
Genome Wide

Comparison of Starch Granule Size Distribution Between Hard and Soft Wheat Cultivars in Eastern China

2008 ◽  
Vol 7 (8) ◽  
pp. 907-914 ◽  
Author(s):  
Wen-yang LI ◽  
Su-hui YAN ◽  
Yan-ping YIN ◽  
Yong LI ◽  
Tai-bo LIANG ◽  
...  
Keyword(s):  
Size Distribution ◽  
Starch Granule ◽  
Eastern China ◽  
Granule Size ◽  
Soft Wheat ◽  
Wheat Cultivars

Relationship between Starch Granule Size Distribution and Selected Malting Parameters

2008 ◽  
Vol 66 (3) ◽  
pp. 162-166
Author(s):  
Vratislav Psota ◽  
Josef Chmelík ◽  
Ivan Bohačenko ◽  
Jiří Hartmann
Keyword(s):  
Size Distribution ◽  
Starch Granule ◽  
Granule Size
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