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Revisiting Pivotal-Differential Genome Evolution in Wheat
Trends in Plant Science ( IF 20.5 ) Pub Date : 2017-06-22 , DOI: 10.1016/j.tplants.2017.06.003
Ghader Mirzaghaderi , Annaliese S. Mason

An interesting and possibly unique pattern of genome evolution following polyploidy can be observed among allopolyploids of the Triticum and Aegilops genera (wheat group). Most polyploids in this group are presumed to share a common unaltered (pivotal) subgenome (U, D, or A) together with one or two modified (differential) subgenomes, a status that has been referred to as ‘pivotal-differential’ genome evolution. In this review we discuss various mechanisms that could be responsible for this evolutionary pattern, as well as evidence for and against the putative evolutionary mechanisms involved. We suggest that, in light of recent advances in genome sequencing and related technologies in the wheat group, the time has come to reopen the investigation into pivotal-differential genome evolution.



中文翻译:

回顾小麦的关键差异基因组进化。

可以的异源多倍体中可以观察到下面的多倍体基因组进化的一个有趣的和可能的独特模式小麦山羊属(小麦组)。推测该组中的大多数多倍体与一个或两个修饰的(差异)亚基因组共享一个共同的未改变的(重要的)亚基因组(U,D或A),这种状态被称为“重要的差异”基因组进化。在这篇综述中,我们讨论了可能导致这种进化模式的各种机制,以及支持和反对所涉及的假定进化机制的证据。我们建议,鉴于小麦组中基因组测序和相关技术的最新进展,是时候重新开展对关键性差异基因组进化的研究了。

更新日期:2017-06-22
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