Wheat syntenome unveils new evidences of contrasted evolutionary plasticity between paleo‐ and neoduplicated subgenomes. (29th November 2013)

• Record Type: Journal Article
• Authors: Pont, Caroline; Murat, Florent; Guizard, Sébastien; Flores, Raphael; Foucrier, Séverine; Bidet, Yannick; Quraishi, Umar Masood; Alaux, Michael; Doležel, Jaroslav; Fahima, Tzion; Budak, Hikmet; Keller, Beat; Salvi, Silvio; Maccaferri, Marco; Steinbach, Delphine; Feuillet, Catherine; Quesneville, Hadi; Salse, Jérôme
• Is Part Of: Plant journal. Volume 76:Number 6(2013:Dec.)
• Page Start: 1030
• Page End: 1044
• Publication Date: 2013-11-29
• Subjects: Plant molecular biology -- Periodicals; Plant cells and tissues -- Periodicals; Botany -- Periodicals; 580
• DOI: 10.1111/tpj.12366
• Languages: English
• ISSNs: 0960-7412

Abstract

<abstract abstract-type="main" id="tpj12366-abs-0001"> <title>Summary</title> <p>Bread wheat derives from a grass ancestor structured in seven protochromosomes followed by a paleotetraploidization to reach a 12 chromosomes intermediate and a neohexaploidization (involving subgenomes A, B and D) event that finally shaped the 21 modern chromosomes. Insights into wheat syntenome in sequencing conserved orthologous set (COS) genes unravelled differences in genomic structure (such as gene conservation and diversity) and genetical landscape (such as recombination pattern) between ancestral as well as recent duplicated blocks. Contrasted evolutionary plasticity is observed where the B subgenome appears more sensitive (i.e. plastic) in contrast to A as dominant (i.e. stable) in response to the neotetraploidization and D subgenome as supra‐dominant (i.e. pivotal) in response to the neohexaploidization event. Finally, the wheat syntenome, delivered through a public web interface PlantSyntenyViewer at http://urgi.versailles.inra.fr/synteny-wheat, can be considered as a guide for accelerated dissection of major agronomical traits in wheat.</p> </abstract>