title: Wheat syntenome unveils new evidences of contrasted evolutionary plasticity between paleo- and neoduplicated subgenomes.
abstract: 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.
authors.affiliation: INRA/UBP UMR 1095, Centre de Clermont Ferrand-Theix, 5 Chemin de Beaulieu, 63100, Clermont Ferrand, France.
authors.forename: Caroline
authors.initials: C
authors.lastname: Pont
authors.forename: Florent
authors.initials: F
authors.lastname: Murat
authors.forename: Sébastien
authors.initials: S
authors.lastname: Guizard
authors.forename: Raphael
authors.initials: R
authors.lastname: Flores
authors.forename: Séverine
authors.initials: S
authors.lastname: Foucrier
authors.forename: Yannick
authors.initials: Y
authors.lastname: Bidet
authors.forename: Umar Masood
authors.initials: UM
authors.lastname: Quraishi
authors.forename: Michael
authors.initials: M
authors.lastname: Alaux
authors.forename: Jaroslav
authors.initials: J
authors.lastname: Doležel
authors.forename: Tzion
authors.initials: T
authors.lastname: Fahima
authors.forename: Hikmet
authors.initials: H
authors.lastname: Budak
authors.forename: Beat
authors.initials: B
authors.lastname: Keller
authors.forename: Silvio
authors.initials: S
authors.lastname: Salvi
authors.forename: Marco
authors.initials: M
authors.lastname: Maccaferri
authors.forename: Delphine
authors.initials: D
authors.lastname: Steinbach
authors.forename: Catherine
authors.initials: C
authors.lastname: Feuillet
authors.forename: Hadi
authors.initials: H
authors.lastname: Quesneville
authors.forename: Jérôme
authors.initials: J
authors.lastname: Salse
mesh_terms: D032461:Chromosomes, Plant / Q000235:genetics*; D017124:Conserved Sequence; D018744:DNA, Plant / Q000737:chemistry / Q000235:genetics; D019143:Evolution, Molecular; D005799:Genes, Dominant; D005819:Genetic Markers; D018745:Genome, Plant / Q000235:genetics*; D023281:Genomics; D008954:Models, Biological; D020641:Polymorphism, Single Nucleotide; D011123:Polyploidy; D017422:Sequence Analysis, DNA; D026801:Synteny / Q000235:genetics*; D014908:Triticum / Q000235:genetics*
chemical_list: D018744:DNA, Plant; D005819:Genetic Markers
keywords: conserved orthologous set; dominance; paleogenomics; partitioning; single nucleotide polymorphism