Application of cotton GhPHOT1-1 gene in efficient utilization of light energy

Abstract

The invention belongs to the technical field of cotton genetic engineering application, and particularly relates to a patent application for new application of a cotton GhPHOT1-1 gene in efficient utilization of plant light energy. The GhPHOT1-1 gene is associated with plant growth and development; after overexpression of the GhPHOT1-1 gene, the maximum light energy conversion efficiency Fv / Fm ofPSII reaction center of transgenic plant leaf blades is significantly increased, and the maximum photochemical efficiency Fv' / Fm' of PSII under light adaptation conditions is improved, that is: the overexpression of the GhPHOT1-1 can improve the efficiency of light energy utilization of transgenic plants. The cotton GhPHOT1-1 gene has a direct correlation with the photosynthetic efficiency enhancement based on a conserved blue receptor response function. Based on the discovery, the cotton's ability to capture light is better enhanced, so that the cotton can maximize the use of light energy, then a molecular breeding method is used for increasing the yield, showing a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of cotton genetic engineering application, in particular to cotton GhPHOT1-1 A patent application for the new application of genes in the efficient use of light energy in plants. Background technique [0002] Cotton is Malvaceae ( Malvaceae ) Cotton ( Gossypium ) is a plant that can provide renewable resources such as natural fiber, oil and protein for people's daily life, and is one of the most important economic crops in the world. [0003] With the increase of my country's population, the demand for cotton is also increasing day by day, while the area of ​​arable land in our country is decreasing day by day. How to increase cotton production on the limited arable land is a major issue related to the national economy and people's livelihood. Through traditional genetic breeding methods, breeders have bred cotton varieties with improved yield and quality, but it is difficult to further increase the yie...

AI Technical Summary

Problems solved by technology

Cotton is a light-loving and warm-loving plant. However, the light energy utilization efficiency of the main cotton varieties in most areas of my country is generally low, and there is potential for improvement in many aspects of improving its photosynthetic efficiency.

[0005] In the prior art, there have been preliminary studies on the cloning of genes related to light absorption and utilization in cotton, such as Gao Ge's "Cotton GhPHOT1 and GhPHOT2 Gene cloning and functional identification" (Henan University, 2015 master's thesis), that is, for cotton GhPHOT1 The gene was initially cloned, but the function of the gene and its relationship with GhPHOT2 There is still a lack of detailed reports on the differences in gene functions, so further research is still necessary

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