Chinese Academy of Sciences;Institute of Genetics and Developmental Biology
发明人:
Shaoyang Lin
申请号：
US16038846
公开号：
US20200008387A1
申请日:
2018.07.18
申请国别(地区):
US
年份:
2020
代理人:
摘要：
The present disclosure relates to a method for improving a plant variety. The present disclosure relates to a method of plant breeding, the method comprising the following steps:1) Selecting a background variety and a donor variety,2) Comparing the background variety and the donor variety to identify a module or locus to be improved,3) Crossing the background variety and the donor variety to obtain a hybrid progeny, backcrossing the hybrid progeny to the background variety to obtain a backcross progeny, and constructing a genetic population using the backcross progeny,4) Selecting, using molecular markers or a sequencing method, a backcross progeny having chromosomal regions derived from the background variety except for the module or locus to be improved, the molecular markers comprising genome molecular markers and module or locus molecular markers designed according to the selected module or locus,5) Self-crossing the selected backcross progeny to obtain an improved plant variety.The present disclosure also relates to a plant variety obtainable by said method.The method can select a plant in laboratory, obtaining a plant with a definite and improved trait and gene with high breeding efficiency, and achieving division of labour during the breeding process and accumulation of breeding advantages.
