大豆DNA导入玉米后代植株蛋白质和油分的分析(英文)

[Objective] The experiment was aimed to explore character variation between different families after DNA introduction and select variant plants with good stability. [Method] The method of pollen-tube-pathway was used to introduce total DNA of soybean into normal maize inbred line 7313 for selecting generation by generation. When field characters of maize, grain colors, grain traits and panicle axis colors were stable, the crude protein, gliadin, glutelin and oil content of grains which were selected from variant strains were detected and compared. [Result] The grain crude protein, gliadin, glutelin and oil content of line 26h-4-3 were significantly different from these of control treatment. The increments of D3 and D4 generation were 10.34% and 26.70%, 6.58% and 6.28%, 15.09% and 70.34%, 55.82% and 51.52% respectively. All indexes of line 26h-3-1 were also higher than these of control treatment and the increments of D3 and D4 generation were 5.67% and 21.63%,1.91% and 2.31%, 10.85% and 62.27%,22.49% and 9.67%. [Conclusion] The crude protein, gliadin, glutelin and oil content of variant line 26h-4-3 and 26h-3-1 were stable, so variant line 26h-4-3 and 26h-3-1 were excellent variant strains which satisfied the requirement of high protein breeding.     

甘蔗DNA导入玉米自交系性状变异的研究

采用花粉管通道法将甘蔗DNA导入普通玉米自交系,获得了变异植株,从中选出优良变异株,经3代自交观察,在D3代各农艺性状趋于稳定.对其主要农艺性状进行方差分析和D3代植株的叶绿素含量等生理生化分析,从中选出优良株系20-5000①和20-500②,其叶绿素、可溶性糖、蛋白质含量均比对照提高,可为今后玉米杂交育种提供中间材料.