A synteny‐based draft genome sequence of the forage grass Lolium perenne
Citations Over TimeTop 1% of 2015 papers
Abstract
Here we report the draft genome sequence of perennial ryegrass (Lolium perenne), an economically important forage and turf grass species that is widely cultivated in temperate regions worldwide. It is classified along with wheat, barley, oats and Brachypodium distachyon in the Pooideae sub-family of the grass family (Poaceae). Transcriptome data was used to identify 28,455 gene models, and we utilized macro-co-linearity between perennial ryegrass and barley, and synteny within the grass family, to establish a synteny-based linear gene order. The gametophytic self-incompatibility mechanism enables the pistil of a plant to reject self-pollen and therefore promote out-crossing. We have used the sequence assembly to characterize transcriptional changes in the stigma during pollination with both compatible and incompatible pollen. Characterization of the pollen transcriptome identified homologs to pollen allergens from a range of species, many of which were expressed to very high levels in mature pollen grains, and are potentially involved in the self-incompatibility mechanism. The genome sequence provides a valuable resource for future breeding efforts based on genomic prediction, and will accelerate the development of new varieties for more productive grasslands.
Related Papers
- → DRIMM-Synteny: decomposing genomes into evolutionary conserved segments(2010)103 cited
- → Evidence and evolutionary analysis of ancient whole-genome duplication in barley predating the divergence from rice(2009)84 cited
- → Einfluß von Hauptbestandsbildner (Lolium multiflorum Lam., Lolium X boucheanum Kunth, Lolium perenne L. und Dactylis glomerata L.), Narbendichte, N‐Düngung und Zeit auf Ertrag, Energiedichte, P/E‐Quotient und Nitratgehalt(1990)2 cited
- → Einfluß von Hauptbestandsbildner (Lolium multiflorum Lam., Lolium X boucheanum Kunth, Lolium perenne L. und Dactylis glomerata L.), Narbendichte, N‐Düngung und Zeit auf Ertrag, Energiedichte, P/E‐Quotient und Nitratgehalt(1990)1 cited
- Physiological Responses of Two Lolium Varieties to the Enhancements of Tropospheric O_3 Concentration(2015)