ZmLAX3 protein, and coding gene and application thereof

Abstract

The invention discloses a ZmLAX3 protein, and a coding gene and application thereof. The invention provides a protein disclosed as 1) or 2): protein disclosed as Sequence 2 in the sequence table; and 2) Sequence-2-derived protein subjected to substitution and / or deletion and / or addition of one or more nucleotide residues with the same functions as the nucleotide sequence disclosed as Sequence 2 in the sequence table. The experiment proves that the cloning of the ZmLAX3 gene detects that the transgenic crop obtained from the gene has plant types, fringe character change and other phenotypes. The transgenic positive plant can improve the plant types, fringe characters and other important agronomic characters when being used for production, is used for enhancing the yield and quality of the crops, and has important economic value and social benefits.

Description

technical field [0001] The invention relates to the technical field of plant genetic engineering, in particular to a ZmLAX3 protein and its coding gene and application. Background technique [0002] With the rapid growth of the world economy, corn, as an important crop with multiple uses such as grain, feed, and industrial processing, has seen a sharp increase in global demand. China is a major corn producing country in the world, and increasing corn production has become an urgent problem to be solved in my country's corn industry, and it is also an urgent need for agricultural production and social economy. [0003] Yield trait is one of the important agronomic traits of maize. It is a quantitative trait controlled by multiple genes. There are complex interactions between genes. Gene expression is easily affected by the environment. It shows continuous variation of traits, and the genetic basis is very complex. Maize yield traits are the result of the combined effects of ...

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Problems solved by technology

Although several QTL loci have been mapped on maize yield and yield composition traits (Shi Yunsu, Genetic diversity analysis of important maize inbred lines and QTL research on yield-related traits, 2008; Toledo et al., Genet.Mol.Res., 2011 , 10, 2133-2139; Lu et al., J Integr. Plant Biol., 2006, 48, 1233-1243; Veldboom et al., Theor Appl Genet, 1994, 89, 451-458), but these QTLs are rarely in Co-detected in different germplasm (temperate germplasm and tropical germplasm), and there is a significant interaction with the environment, there are few stable QTLs between environments, which increases the challenge of the versatility of molecular marker-assisted selection (Luna et al., Mol Breed, 2006, 17, 227-239)

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