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首页> 外文期刊>Spanish Journal of Agricultural Research >Spontaneous wheat-Aegilops biuncialis, Ae. geniculata and Ae. triuncialis amphiploid production, a potential way of gene transference
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Spontaneous wheat-Aegilops biuncialis, Ae. geniculata and Ae. triuncialis amphiploid production, a potential way of gene transference

机译：自发的小麦-Aegilops biuncialis，ae。 geniculata和Ae。 Triuncialis两倍体产生，一种潜在的基因转移方式

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摘要

Some F1 hybrid plants between three species of the Aegilops genus and different hexaploid wheat Triticum aestivum cultivars show certain self-fertility, with averages of F1 hybrids bearing F2 seeds of 8.17%, 5.12% and 48.14% for Aegilops biuncialis, Aegilops geniculata and Aegilops triuncialis respectively. In the Ae. triuncialis-wheat combination with ";Astral" wheat cultivar, the fertility was higher than that found in the other combinations. All the F2 seeds studied were spontaneous amphiploids (2n=10x=70). The present study evidences the possibility of spontaneous formation of amphiploids between these three Aegilops species and hexaploid wheat and discusses their relevance for gene transference. Future risk assessment of transgenic wheat cultivars needs to evaluate the importance of amphiploids as a bridge for transgene introgression and for gene escape to the wild.
机译：三种羊草属植物与不同六倍体小麦普通小麦品种之间的一些F1杂种植物表现出一定的自育性，F1杂种的F1杂种平均有F2种子，分别为Aegilops biuncialis，Aegilops geniculata和Aegilops triuncialis。分别。在Ae。 Triuncialis-wheat与“; Astral”小麦品种的组合，其育性要高于其他组合。研究的所有F2种子都是自发的二倍体（2n = 10x = 70）。本研究证明了在这三种埃及盾草物种和六倍体小麦之间自发形成两倍体的可能性，并讨论了它们与基因转移的相关性。未来对转基因小麦品种的风险评估需要评估两倍体作为转基因渗入和野生基因逃逸的桥梁的重要性。

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