论文部分内容阅读
用系谱分析法研究了东北地区168个杂交育成大豆品种与其祖先品种间的亲缘系数,估计了各祖先品种对辽,吉、黑三省大豆基因库的相对遗传贡献。结果表明,我国东北地区大豆育成品种的遗传基础较窄。满仓金,紫花4号,丰地黄,元宝金,荆山朴,铁荚四粒黄,克山四粒黄,金元1号,十胜长叶和黄宝珠10个祖先品种对东北大豆杂交育成品种遗传基础的总贡献为57.7％。因满仓金,元宝金是金元×黄宝珠的后代,而荆山朴是由满仓金系选而来,因此,金元和黄宝珠约贡献了东北大豆育成品种约28.7％的遗传物质。三省比较,黑龙江省杂交育成大豆品种的遗传基础最窄,辽宁次之。为了保证持续稳定的育种进展,有必要加强对国内外大豆种质资源利用的研究。扩大种质资源的利用范围,使大豆品种的遗传基础多样化。
Using phylogenetic analysis, the genetic relationship between 168 soybean cultivars and their ancestral breeds in northeastern China was studied. The relative genetic contribution of each ancestral breed to soybean gene pool in Liao, Ji and Hei provinces was estimated. The results showed that the genetic basis of soybean cultivars in northeast China was narrow. Manchurian gold, purple flowers on the 4th, the abundance of yellow, ingot gold, Jing Park, iron pods four yellow, Keshan four yellow, Jinyuan No. 1, ten wins long leaves and yellow Baozhu 10 ancestral varieties of soybean breeding in Northeast China The total contribution of breed genetic basis was 57.7%. Due to the full warehouse gold, the gold ingots are gold × × Baozhu Zhu’s offspring, and Jing Shan Park is selected from the full warehouse gold, gold and yellow Baozhu contributed about 28.7% of soybean varieties in Northeast China genetic material. Three provinces, Heilongjiang Province, the genetic base of the hybridization of cultivated soybean narrowest, followed by Liaoning. In order to ensure a steady and stable breeding progress, it is necessary to strengthen the research on the utilization of soybean germplasm resources at home and abroad. Expand the use of germplasm resources to diversify the genetic basis of soybean varieties.