关键词: 野生大豆;种质创新;种质利用;优良特性;种质资源

Abstract:

China is the main distribution country of wild soybean((G. soja), a wild annual progenitor of soybean (G.max)．It is extensively distributed hearty all over the whole China, delineated bv 23。57 一53。N and 97。￡9’一34。E．Wild soybean has been thought 1o be an important genet134。E．Wild soybean has been thought
to be an important genetic resources because it has a high content of protein，high productivity of pods and
high resistance to environmental stress． J far about 6500 wild soybean germplasm accessions collected from
various areas perpetually preserved in th ene bank．where there are abundant morphological types，including rare characters，for example．brown．yellow ：and green seed—COBt，no—bloom seed，white flower，long narrow leaf，green cotyledon.
Studies of the introgression of the wild germplasm into cultivated soybeans by crossing have demonstrated that the cross introgression is a very effective method to develop Dew soybean germplasms and has several
favours：①offers useful genes；②broadens Ibe genetic background of soybean；③creates new genotypes by
genetic recom bination．

Key words: Wild soybean, Genetic resources, Germplasm introgression