Use of auxin efflux carrier PINFORMED1 (PIN1) family genes in breeding corn and broomcorn

Abstract

The invention discloses the use of auxin efflux carrier PINFORMED1 (PIN1) family genes in breeding corn and broomcorn. In the invention, different PIN1 family genes are cloned from different higher plants and bonded with different promoters respectively to form fusion genes; and the recombinant genes are transferred into corn and broomcorn cells by transgenic technology; and thus, transgenic plants and progeny of the transgenic plants are obtained, engineering plants of which the plant traits are changed with the gradient change in the concentration of auxin can be selected, and new varieties with application prospects in corn and broomcorn breeding can be created.

Description

technical field

[0001] The invention belongs to the field of bioengineering breeding of crops, in particular, relates to a scheme and application for changing the traits of corn and sorghum by constructing fusion genes and transgenes, especially relates to the application of auxin export carrier PIN1 family genes in corn and sorghum breeding application. Background technique

[0002] The development of plant genetic engineering depends on the application of genes with different functions. Auxin is synthesized in young parts of plants or vigorously dividing tissues, and reaches the site of action through its unique transport mode. Auxin plays an important role in plant growth and development. It regulates auxin synthesis, transport, metabolism and related signal transduction. The expression of guide genes may have an important impact on plant growth and development, and some of these genes related to auxin may be ideal targets for plant genetic engineering operations. [00...