Identification of Leaf Promoters for Use in Transgenic Wheat.

Identification of Leaf Promoters for Use in Transgenic Wheat.
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DOI:
10.3390/plants7020027
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发表时间:
2018-03-28
期刊:
Plants (Basel, Switzerland)
影响因子:
--
通讯作者:
Raines CA
Raines CA
中科院分区:
其他
文献类型:
--
作者:
Alotaibi SS;Sparks CA;Parry MAJ;Simkin AJ;Raines CA

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近年来小麦产量趋于稳定,鉴于全球人口不断增长,迫切需要开发高产品种以满足未来需求。对优良小麦品种光合作用的遗传操作提供了显著提高产量的机会。然而,缺乏一个明确的分子工具箱启动子操纵小麦叶过程阻碍了这一领域的进展。从二穗短柄草中鉴定了两个启动子,一个驱动景天庚酮糖-1,7-二磷酸酶(SBP 4)的表达,另一个驱动果糖-1,6-二磷酸醛缩酶(FBPA)的表达,并将其克隆到GUS报告基因前面的载体中。这两个启动子被证明是在小麦中的瞬时测定和稳定转化的小麦植物中的功能活性。小麦(cv. Cadenza)表明,两种启动子都控制着整个叶发育以及其他绿色组织中的gus表达。这些启动子的可用性为转基因小麦叶片中基因的表达提供了新的工具,也为光合作用的多基因操纵以提高产量铺平了道路。
Wheat yields have plateaued in recent years and given the growing global population there is a pressing need to develop higher yielding varieties to meet future demand. Genetic manipulation of photosynthesis in elite wheat varieties offers the opportunity to significantly increase yields. However, the absence of a well-defined molecular tool-box of promoters to manipulate leaf processes in wheat hinders advancements in this area. Two promoters, one driving the expression of sedoheptulose-1,7-bisphosphatase (SBPase) and the other fructose-1,6-bisphosphate aldolase (FBPA) from Brachypodium distachyon were identified and cloned into a vector in front of the GUS reporter gene. Both promoters were shown to be functionally active in wheat in both transient assays and in stably transformed wheat plants. Analysis of the stable transformants of wheat (cv. Cadenza) showed that both promoters controlled gus expression throughout leaf development as well as in other green tissues. The availability of these promoters provides new tools for the expression of genes in transgenic wheat leaves and also paves the way for multigene manipulation of photosynthesis to improve yields.
SBPase活性增加可改善温室条件下生长的小麦的光合作用和谷物产量。
DOI: 10.1098/rstb.2016.0384
发表时间: 2017-09-26
期刊: Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子: --
作者:
Driever SM;Simkin AJ;Alotaibi S;Fisk SJ;Madgwick PJ;Sparks CA;Jones HD;Lawson T;Parry MAJ;Raines CA
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发表时间: 2017-11-12
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发表时间: 1999-05-01
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影响因子: 7.2
作者:
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