Keidar-Friedman Danielle, Bariah Inbar, Domb Katherine, Kashkush Khalil
Department of Life Sciences, Ben-Gurion University, Beer-Sheva, Israel.
Front Plant Sci. 2020 Jul 31;11:1173. doi: 10.3389/fpls.2020.01173. eCollection 2020.
The discovery of , a wheat-unique miniature transposable element family, was reported in our previous study. We have also shown the possible impact of insertions on the expression of wheat genes. However, the evolutionary dynamics of was not studied in detail. In this study, we have assessed the insertion sites of family in different wheat species. analysis of insertions has allowed the discovery of two different sequence versions of , and that might have been recently active in wild emmer wheat genome ( ssp ). In addition, the analysis of insertional polymorphism has facilitated the discovery of large genomic rearrangement events, such as deletions and introgressions in the wheat genome. The dynamics of family sheds light on the evolution of wheat.
我们之前的研究报道了一个小麦特有的微型转座子家族的发现。我们还展示了该家族插入对小麦基因表达的可能影响。然而，该家族的进化动态尚未得到详细研究。在本研究中，我们评估了该家族在不同小麦物种中的插入位点。对该家族插入的分析发现了两种不同的序列版本，并且该家族可能最近在野生二粒小麦基因组（亚种）中处于活跃状态。此外，对该家族插入多态性的分析有助于发现小麦基因组中的大型基因组重排事件，如缺失和基因渗入。该家族的动态为小麦的进化提供了线索。
