Molecular markers of main effect QTL (Quantitative Trait Locus) qPH6 locus of plant height of rice and application thereof

Abstract

The invention relates to molecular markers of a main effect QTL (Quantitative Trait Locus) qPH6 locus of plant height of rice and an application thereof. The molecular markers are S6-334 and S6-10 which are compactly interlinked with the qPH6 locus and can be applied to identifying and breeding dwarf species of rice. According to the molecular marker method of the main effect QTL qPH6 locus of plant height of rice provided by the invention, the main effect QTL novel locus qPH6 which is from Balilla to control the plant height on the long arm of the sixth chromosome is firstly positioned internationally, and InDel markers S6-334 and S6-10 which are compactly interlinked are obtained. By just detecting the characteristics of the amplification stripes of the markers, whether variation of the main effect QTL qPH6 locus of plant height exists or not can be judged to predict the plant height phenotype of rice for guiding breeding work of improvement of plant height of rice.

Description

technical field [0001] The invention belongs to the field of molecular genetics and breeding, and relates to a molecular marker method for rice plant height main effect QTL sites, which is specially used for molecular marker-assisted improvement of rice variety plant height, molecular marker-assisted breeding and utilization of germplasm resources. Background technique [0002] According to statistics, about 50% of the world's population uses rice as a staple food. Rice is also one of the most important food crops in my country. Increasing rice yield per unit area and total output plays a decisive role in ensuring my country's food security. Excellent plant architecture is the skeleton of super-high yield, and plant height is an important factor of plant architecture in rice, which is closely related to yield and lodging resistance. If the plant height exceeds a certain range, it is easy to lodging and reduce yield, but if the plant height is too short, the lodging resistanc...

AI Technical Summary

Problems solved by technology

In general, the number of fine mapping and clones of rice plant height-related QTL loci is too small, which greatly limits the development of rice plant type and high-yield molecular breeding. Therefore, it is urgent to strengthen the isolation of rice plant height-related quantitative trait loci

Images