文献类型: 外文期刊
作者: Cao, Y. N. 1 ; Hu, W. G. 2 ; Wang, C. S. 1 ;
作者机构: 1.NW A&F Univ, Coll Agron, Yangling 712100, Shaanxi, Peoples R China
2.Henan Acad Agr Sci, Wheat Res Ctr, Zhengzhou 450002, Henan, Peoples R China
关键词: Triticum aestivum;starch synthase;gene expression
期刊名称:RUSSIAN JOURNAL OF PLANT PHYSIOLOGY ( 影响因子:1.481; 五年影响因子:1.608 )
ISSN: 1021-4437
年卷期: 2012 年 59 卷 5 期
页码:
收录情况: SCI
摘要: Non-waxy and waxy types of wheat were used to study the expression profiles of genes involved in starch synthesis. During grain development, expression profiles and levels of AGPL and AGPS genes were similar to each other. SSI expression remained constant during the late grain development, while expression of SSII and SSIII was higher over the early to middle and middle grain development, and the GBSSI was actively expressed during the entire grain development. SBEIIa was higher expressed during early to middle stage, SBEIIb was active in middle and SBEI during middle to late grain development. During the entire grain development, expression levels of GBSSI and SSIII genes were higher in non-waxy type of wheat, while those of SBEI and SBEIIb were lower in the non-waxy type of wheat. Expression of all genes involved in starch synthesis was stage-specific and tissue-specific. In addition, the expression profiles of genes encoding starch synthase were in agreement with the activity changes of starch synthase during grain development.
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