欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (30): 41-44.doi: 10.11924/j.issn.1000-6850.2012-3887

所属专题： 生物技术； 小麦

• 农学 农业基础科学 • 上一篇    下一篇

小麦-黑麦二体代换系间杂交诱导染色体易位的研究

李宇欣 张利国 厉永鹏 张延明   

  • 收稿日期:2012-11-30 修回日期:2013-01-23 出版日期:2013-10-25 发布日期:2013-10-25

Induced Chromosome Translocation by Hybridized between Wheat-Rye Disomic Substitution Lines

  • Received:2012-11-30 Revised:2013-01-23 Online:2013-10-25 Published:2013-10-25

PDF (PC)

547

摘要： 摘 要：小麦-黑麦二体代换系间杂交，是诱导小麦-黑麦染色体易位的重要途径，有理论与应用价值。本研究利用DS1R/1D与DS5R/5A、DS6R/6A杂交,结果表明，F1减数分裂有19个二价体、4个单价体，有部分同源染色体配对和染色体易位现象；F2 对带有黑麦性状的24株普通小麦类型植株进行原位杂交检测，共检测出10株有染色体易位，易位频率为41.6%。易位株系为：06-16-7、06-16-3、06-16-5、06-16-7、06-16-8、06-17-7、0617-11、06-17-15、06-17-16、06-18-5。由于亲本选配、检测植株有一定的目的性，易位植株均表现有一定的应用价值。

关键词: 对策建议, 对策建议

Abstract: Abstract: Hybridization between Wheat-rye disomic substitution is an important way to induce wheat-rye translocation, which has important theory value and practical significance. In this study, DS1R/1D and DS5R/5A, DS6R/6A was hybridized. The results showed that F1 had 19 bivalents and 4 univalents in meiosis, homoeologous chromosome pairing and chromosome translocation phenomenon appeared；In F2，24 common wheat types with rye traits plants were detected by genome in situ hybridization and obtained 10 plants with chromosomal translocation, and the translocation frequency was 41.6%. Translocation lines was 06-16-7,06-16-3,06-16-5,06-16-7,06-16-8,06-17-7,0617-11,06-17-15,06-17-16 and 06-18-5,respectively. Because parent selection and testing plant had a definite purpose, translocation plants could have a practical applications.

中图分类号: