Reproduction updating method for soybean heredity integrity analysis

Abstract

The invention provides a reproduction updating method for soybean heredity integrity analysis. The reproduction updating method includes: performing artificial aging treatment on parent seeds, selecting parent treatments at different germination rate gradients, raising the treated seeds, and transplanting the seedlings to a field; harvesting single plants; and performing seedling raising, transplanting, morphological trait investigation, and single plant harvesting on each descendant treatment according to the step of parent treatments. One of keys of the reproduction updating method is the fact that descendant single plants are corresponding to the parent single plants thereof in a one-to-one manner, i.e., the number of each single plant of each descendant treatment is corresponding to that of each parent single plant in a one-to-one manner; morphological marker analysis and SSR molecular marker analysis is performed during reproduction and updating of a parent generation and a descendant generation so as to detect the soybean heredity integrity. The reproduction updating method is complete and feasible, is normative in system, can reproduce and update stored high-viability soybean so as to maintain the heredity integrity of the soybean.

Description

technical field [0001] The invention belongs to the field of crop germplasm resources and relates to a method for breeding and updating soybean genetic integrity analysis. Background technique [0002] Soybean (Glycine max (L.) Merr.) belongs to Leguminosae, Papilionatae, Glycine, Soja subgenus, and plays a pivotal role in the daily life of our people and the national economic system. It is an important nutritional and health food for human beings. The protein content of soybean grain is about 40%, which is about 1-6 times that of other plants. Except for the low content of methionine and cystine, the content of other essential amino acids for human body is high. Therefore, soybean protein has a good supplementary effect on grain protein, and is an ideal food second only to animal protein. Soybean germplasm resources are an important material basis for the breeding of new soybean varieties and biotechnology research, and also the basic guarantee for the sustainable develop...

AI Technical Summary

Problems solved by technology

[0004] At present, there are few research reports on the genetic integrity of soybean germplasm at home and abroad, and the procedures and methods for its breeding and updating are not standardized

Images