The diversity and evolution of wheat (Triticum-Aegilops group) genomes is determined, in part, by the activity of transposable elements that constitute a large fraction of the genome (up to 90%). In this study, we retrieved sequences from publicly available wheat databases, including a 454-pyrosequencing database, and analyzed 18,217 insertions of 18 Stowaway-like miniature inverted-repeat tran...

Hybridization is a prominent evolutionary force promoting plant diversification, either with or without subsequent genome doubling (Abbott et al., 2013; Soltis et al., 2014; Yakimowski & Rieseberg, 2014). The Aegilops–Triticum complex is an ideal system to investigate how natural hybridization and allopolyploidization have caused species diversification (Matsuoka, 2011). Recently,Marcussen et a...

Gene flow from crop to wild relatives is a common phenomenon which can lead to reduced adaptation of the wild relatives to natural ecosystems and/or increased adaptation to agrosystems (weediness). With global warming, wild relative distributions will likely change, thus modifying the width and/or location of co-occurrence zones where crop-wild hybridization events could occur (sympatry). This ...