Protein related to plant type as well as coding gene and application of the protein

Abstract

The invention discloses a protein related to a plant type as well as a coding gene and application of the protein. The invention provides application of DHT1 protein or related biological materials thereof in regulation and control of plant grain development. The related biological materials are nucleic acid molecules capable of expressing the DHT1 protein or expression cassettes, recombinant vectors, recombinant bacteria or transgenic cell lines containing the nucleic acid molecules; and the DHT1 protein is a protein as shown in SEQ ID No.1 or a protein obtained after the protein as shown in SEQ ID No.1 is subjected to substitution and/or deletion and/or addition of one or more amino acid residues, or a protein which has more than 99%, more than 95%, more than 90%, more than 85% or more than 80% of homology in sequence and has the same function, or a fusion protein which is obtained after the N end and/or C end of the protein are/is connected with a label. Experiments prove that the DHT1 and the coding gene thereof can regulate and control the plant type of the plant, and have important application value for effectively regulating and controlling the plant type by utilizing the gene resource with genetic breeding and genetic engineering methods.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a protein related to plant type and its coding gene and application. Background technique [0002] Rice is an important food crop that feeds more than one-third of the world's population. With population growth, reduction of arable land and environmental degradation, rice production is facing increasing pressure to ensure yield. The plant type of rice is an important agronomic trait related to yield. The plant type mainly depends on several aspects such as plant height, leaf type, tiller number, tiller angle and panicle shape. Therefore, it is of great significance for rice breeding and production to discover and utilize related genes that control rice plant type. [0003] So far, most of the plant height genes that have been cloned in rice are related to the metabolism or signal transduction of hormones such as gibberellin, brassinosteroids and strigolactone, such as the semi-dwar...

AI Technical Summary

Problems solved by technology

At present, it has been found that such proteins in plants are involved in the regulation of multiple physiological and biochemical processes such as seed germination, photosynthesis, various stress responses, flowering, hormone signal transduction, etc., but the regulation of plant type is still unknown

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