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以普通小麦为父本,以与小麦亲缘关系较近的黑麦、偃麦草和山羊草等属中7个种的10个品种为母本进行人工杂交,结果表明普通小麦与卵穗山羊草的可交配性最高,其两个品种Ae23和Y100与普通小麦的杂交结实率分别为11.96％和14.10％,与黑麦杂交的结实率最低,授粉496朵,未结1粒,与其他近缘种的杂交结实率介于前二者之问。与倍性高的种相比,二倍体种与普通小麦之间的可交配性要差,其杂种幼胚在培养基上也很难出愈。所得杂种的育性非常低,甚至雌雄蕊均不育。由此看来,自然条件下普通小麦基因漂流到野生近缘种中的可能性非常低,通过转基因小麦田间释放产生“超级杂草”是非常困难的。
Triticum aestivum was crossed with 10 wheat cultivars including 7 ruminants such as ryegrass, The highest seedability of hybrids Ae23 and Y100 were 11.96% and 14.10%, respectively. The seed setting rate of Ae23 and Y100 was the lowest, the rate of seed setting was the lowest The rate of crossbreeding between the two is in question. Compared with the high ploidy species, diploid species and the common wheat between the poor compatibility, the hybrid immature embryos in the medium is difficult to be cured. The resulting hybrids have very low fertility, and even the stamens are sterile. In view of this, it is very unlikely that the gene of common wheat will drip into wild relatives under natural conditions. It is very difficult to generate “super weeds” through the release of transgenic wheat field.