Genetic manipulation of photosynthetic efficiency to increase strawberry yields Increasing

主要由于世界人口的增长，全球对粮食的需求不断增加，导致需要开发高产作物品种。转基因和建模研究提供了令人信服的证据，表明增加碳代谢中光合酶的水平，例如卡尔文-本森循环，有可能影响产量。这些研究已确定光合碳同化是一个未开发的目标，可以将光合效率和产量提高高达60%。最近，操纵小麦的光合作用被证明可以提高种子产量30%至40%。本项目的总体目标是：1。利用光合作用的广泛知识和从模式物种中获得的操作经验来生产具有增强的光合性能和增加的产量的草莓植物; 2.产生具有改变的Calvin-Benson循环、光呼吸和CO2运输的多个靶酶水平的新的转基因草莓品系; 3.确定生物量和果实产量增加的草莓品系，并分析对所选果实的风味和香气特征的影响。

Increasing global requirements for food, largely due to the growing world population, has led to the need to develop higher yielding crop varieties. Transgenic and modelling studies have provided compelling evidence that increasing the levels of photosynthetic enzymes in carbon metabolism e.g. Calvin-Benson cycle has the potential to impact yield. These studies have identified photosynthetic carbon assimilation as an untapped target to increase photosynthetic efficiency and yield by as much as 60%. Recently, manipulation photosynthesis in wheat was shown to boost seed yield by 30 to 40%. Objectives The overall aims of this project are: 1. to exploit the extensive knowledge of photosynthesis and experience gained from its manipulation in model species to produce strawberry plants with enhanced photosynthetic performance and increased yield; 2. to produce new transgenic strawberry lines with altered levels of multiple targets enzymes of the Calvin-Benson cycle, photorespiration and CO2 transport; 3. to identify strawberry lines with increased biomass and fruit yield and analyse the impact on the flavour and aroma profiles of selected fruit.