摘要
本文用八倍体小黑麦、六倍体小黑麦与普通小麦杂交 ,在杂交后代中选择普通小麦类型带有黑麦性状的品系 5 6个 ,经C -分带与原位杂交鉴定 ,选出 1 0个同祖群间的代换系 ,即 1R/1D ,1R/1A ,5R/5A ,6R/6A的代换 ,这 1 0个代换系表现遗传性稳定 ,育性正常 ,具有抗病、抗旱等优良性状 ,有利用价值。用代换系 5R/5A与 6R/6A杂交 ,在杂交后代中获得大量有经济价值的小片段易位系 。
In common Wheat × Octoploid Triticale and Hezaploid Tyiticale we have selected 56 lines with common wheat rye's characters, Through C-banding and in situ hybridization, 10 lines was certified as homoeologous substitution lines: 1R/1D,1R/1A,5R/5A and 6R/6A These lines are useful for the genetic stability fertility and dry and disease resistance, In hybridization between 5R/5A and 6R/6A We obtained a lot of small segment translocation lines which were supposed to be originated from the homoeologous chromosome pairing and crossover
出处
《植物研究》
CAS
CSCD
北大核心
2002年第2期220-223,T007,共5页
Bulletin of Botanical Research
关键词
小麦
黑麦
染色体代换
代换系间杂交
易位
chromosome substitution
hybrid in substitution
linetranslocation
