DONG Li-jie,LI Sheng-you,WANG Ya-zhen,et al.Improvement of Protein and Oil Content in Cross Generations of Soybean Varieties with Diverse Genetic Background in Radiation-induced Mutation[J].Soybean Science,2018,37(03):337-341.[doi:10.11861/j.issn.1000-9841.2018.03.0337]
辐射诱变对不同遗传背景大豆杂交后代蛋白质和脂肪含量改良
- Title:
- Improvement of Protein and Oil Content in Cross Generations of Soybean Varieties with Diverse Genetic Background in Radiation-induced Mutation
- Keywords:
- Soybean; Genetic background; Radiation-induced mutation; Quality
- 文献标志码:
- A
- 摘要:
- 高蛋白材料匮乏及选育方法单一是辽宁省高蛋白大豆育种中的两个突出问题。为探索高蛋白大豆种质资源创新有效途径,本研究以辽宁省农业科学院选育的辽04Q086、辽08020、辽05086和辽06Q003高蛋白品系为母本,与河北省沧州市农林科学院选育的高蛋白品种沧豆10号进行有性杂交,并对亲本及杂交F2代进行不同剂量的辐射诱变处理,分析了不同剂量辐射诱变对不同受体的籽粒蛋白质和脂肪含量的改良效果。结果表明:4个大豆品系与沧豆10号杂交衍生的F3代植株中,低蛋白高脂肪类型所占比例最高,达到了45.0%。4个大豆品系经辐射诱变(60Coγ-14000和60Coγ-16000)衍生的M1代中,低蛋白高脂肪类型所占比例也分别达到42.5%和40.0%。然而,以杂交F2代种子为受体进行不同剂量辐射诱变衍生的M1代植株中,高蛋白低脂肪类型所占比例最高,分别为35.0%和27.5%,蛋白质含量最高达47.0%。本研究表明,以不同遗传背景的高蛋白大豆杂交,并结合辐射诱变选育高蛋白材料是可行的。
- Abstract:
- The scarcity of high-protein germplasm and singular breeding method are the two limiting factors for high-protein soybean breeding in Liaoning province. In order to explore an efficient innovation pathway of high-protein germplasm breeding, this study analyzed the change of protein and oil content in the generations of different receptors induced by different radiation doses. Four lines (Liao04Q086, Liao08020, Liao05086 and Liao06Q003) released in Liaoning province were used to cross with high-protein cultivar Cangdou 10 released in Hebei province, and then the parents along with their crossing generations were induced by 60Coγ ray. The results showed that the percentage of low-protein with high-oil types was 45.0%, which was larger than those of other types in the F3 generations. The similar results found in M1 generations from radiation treatment on four parents indicated that it was difficult to obtain high-protein types as lines being receptors. However, after radiation treatment on the F2 generations, the high-protein with low-oil types had a larger percentage (35.0% and 27.5%) than other types in their M1 generations, and the highest protein content reached 47.0%. Results of this manuscript provided a feasible pathway to improve protein content of soybean through combining cross technique of high-protein parents with different background and radiation-induced mutation technique.
参考文献/References:
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备注/Memo
收稿日期:2018-01-31