优质大豆品种与抗除草剂转基因大豆品种杂种后代的遗传分析

Genetic Analysis of Hybrid Progenies of High Quality Soybean Cultivars with Transgenic Herbicide-resistance Soybean Cultivars

通过利用4个普通优质大豆品种与3个抗除草剂转基因大豆品种进行组配,采用4×3 NC II遗传交配设计,对产量、品质等性状的遗传力和配合力进行分析。结果表明:抗除草剂Bar基因能在F1代得到显性遗传,抗除草剂转基因大豆各性状以加性遗传效应为主,农大35306单株荚数和单株粒数一般配合力效应值最高,农大15751×TSB2、农大35306×TSB4等组合可作为高产优质抗除草剂组合进一步对比选择。

The genetic cross program was designed by four common best soybean lines and three transgenic herbicide-resistant soybean lines to study the heritability and combing ability for yield and quality and so forth.The results demonstrated that the herbicide-resistant gene Bar was dominant inheritance in F1,the additive effects were mainly responsible for the heredity of each character.The pods and seeds of Nongda 35306 had higher GCA effect,the combinations Nongda 15751×TSB2、Nongda 35306×TSB4 can be developed for high yield and super quality combinations.The research laid a foundation for the effective use of the transgenic herbicide-resistant soybean.