Application of ZmPPR521 protein in regulation and control of corn kernel quality and plant height

Abstract

The invention discloses application of ZmPPR521 protein in regulation and control of corn kernel quality and plant height, and belongs to the technical field of plant genetic engineering and corn molecular breeding. According to the invention, it is found for the first time that the ZmPPR521 protein is closely related to the quality and plant height of corn kernels, and when the ZmPPR521 protein in corn is inactivated, indexes such as the length, width, thickness and hundred-grain weight of the kernels are reduced; however, the starch content in grains is obviously increased, and the plant height is obviously reduced. Research results of the invention enrich a regulation and control network of corn kernel quality, provide direct evidence for regulation and control of corn kernel quality and plant height by the triangular pentapeptide repeat protein, provide a thought for creation of high-quality lodging-resistant new corn materials, can be used for cultivation of new breeding materials, and provide a basis for further high-yield corn breeding.

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