摘要
第一次在一个Ａｅ．ｃｙｌｉｎｄｒｉｃａ系统中发现了Ｐｈ１－ｌｉｋｅ基因，但它的作用略小于Ｐｈ１。同时证明了Ａｅ，ｃｙｌｉｎｄｒｉｃａ在控制染色体配对基因方面存在多态现象。ｐｈ１ｂ基因可以诱导普通小麦与Ａｅ．ｃｙｌｉｎｄｒｉｃａ间的部分同源染色体配对，同时用普通小麦对（中国春ｐｈ１ｂ突变体×Ａｅ．ｃｙｌｉｎｄｒｉｃａ）Ｆ_１回交获得了成功。表明利用ｐｈ１ｂ基因通过诱导部分同源染色体配对可以把Ａｅ．ｃｙｌｉｎｄｒｉｃａ中的有益基因导入到普通小麦中。
For the frist time,the Ph1-like gene was found in a race of Ae.cylindrica.The effect of the Ph1-like gene is less than that of Ph1 gene on inhibiting homoeologous chromosome pairing.The ph1b gene might induce the homoeologous chromosome pairing between wheat and Ae. cylindrica, At the same time, and the backcross seeds of(Chinese Spring ph1b mutant ×Ae. cylindrica) F1 with Chinese Spring were obtained.This indicated that the desirable gene can be transferred to common wheat from Ae.cylindrica via homoeologous chromosome pairing induced by ph1b gene.
关键词
小麦
Ph1-like基因
柱穗山羊草
遗传
Common wheat
Ae.cylindrica
Homoeologous pairing
Backcross
Ph1-like gene
