Molecular marker of TaGS2 gene related with wheat plant height, obtaining method and application thereof

Abstract

The invention discloses a molecular marker IN10 of a TaGS2 gene related with the wheat plant height, and the application in the field of screening wheat variety or strain plant height by using the molecular marker; in particular, a marker primer of the molecular marker IN10 is used for performing PCR (polymerase chain reaction) amplification on a wheat genome DNA (deoxyribonucleic acid) to be tested, and the product of amplification is subjected to electrophoresis separation; the obtained corresponding product of amplification has bands in 555bp, 466bp and 426bp of molecular weights, and is used for judging the change of plant height of the variety, which is used as a theoretical guide for breeding new wheat variety of different plant height types. The screening method provided by the invention is quick and accurate and is not affected by environment, the selection target is definite, a reasonable plant height group can be quickly produced, and the selection efficiency and quality of high-yield wheat variety or strain can be improved greatly.

Description

technical field

[0001] The invention relates to the technical field of biogenetic engineering, in particular to a wheat plant height-related TaGS2 Gene molecular markers, acquisition methods and their applications. Background technique

[0002] Wheat is the most important food crop in the world and one of the three major food crops in my country. Plant height is an important factor affecting the high yield of wheat. Plants that are too tall are prone to lodging under high fertilizer and water conditions, resulting in a decrease in yield; plants that are too short can easily cause crowded leaves, poor ventilation and light transmission in the middle and lower parts, resulting in reduced photosynthetic efficiency and yield. From the 1960s to the 1980s, the promotion of dwarf and semi-dwarf wheat varieties played a key role in increasing wheat production worldwide. In addition to being controlled by the main dwarf gene, the plant height traits of wheat are also characterized ...