Brunel D

References (2)

Title : The sunflower genome provides insights into oil metabolism, flowering and Asterid evolution - Badouin_2017_Nature_546_148
Author(s) : Badouin H , Gouzy J , Grassa CJ , Murat F , Staton SE , Cottret L , Lelandais-Briere C , Owens GL , Carrere S , Mayjonade B , Legrand L , Gill N , Kane NC , Bowers JE , Hubner S , Bellec A , Berard A , Berges H , Blanchet N , Boniface MC , Brunel D , Catrice O , Chaidir N , Claudel C , Donnadieu C , Faraut T , Fievet G , Helmstetter N , King M , Knapp SJ , Lai Z , Le Paslier MC , Lippi Y , Lorenzon L , Mandel JR , Marage G , Marchand G , Marquand E , Bret-Mestries E , Morien E , Nambeesan S , Nguyen T , Pegot-Espagnet P , Pouilly N , Raftis F , Sallet E , Schiex T , Thomas J , Vandecasteele C , Vares D , Vear F , Vautrin S , Crespi M , Mangin B , Burke JM , Salse J , Munos S , Vincourt P , Rieseberg LH , Langlade NB
Ref : Nature , 546 :148 , 2017
Abstract : The domesticated sunflower, Helianthus annuus L., is a global oil crop that has promise for climate change adaptation, because it can maintain stable yields across a wide variety of environmental conditions, including drought. Even greater resilience is achievable through the mining of resistance alleles from compatible wild sunflower relatives, including numerous extremophile species. Here we report a high-quality reference for the sunflower genome (3.6 gigabases), together with extensive transcriptomic data from vegetative and floral organs. The genome mostly consists of highly similar, related sequences and required single-molecule real-time sequencing technologies for successful assembly. Genome analyses enabled the reconstruction of the evolutionary history of the Asterids, further establishing the existence of a whole-genome triplication at the base of the Asterids II clade and a sunflower-specific whole-genome duplication around 29 million years ago. An integrative approach combining quantitative genetics, expression and diversity data permitted development of comprehensive gene networks for two major breeding traits, flowering time and oil metabolism, and revealed new candidate genes in these networks. We found that the genomic architecture of flowering time has been shaped by the most recent whole-genome duplication, which suggests that ancient paralogues can remain in the same regulatory networks for dozens of millions of years. This genome represents a cornerstone for future research programs aiming to exploit genetic diversity to improve biotic and abiotic stress resistance and oil production, while also considering agricultural constraints and human nutritional needs.
ESTHER : Badouin_2017_Nature_546_148
PubMedSearch : Badouin_2017_Nature_546_148
PubMedID: 28538728
Gene_locus related to this paper: helan-a0a251rty5 , helan-a0a251rwi0 , helan-a0a251s4p0 , helan-a0a251tv75 , helan-a0a251s253 , helan-a0a251ts58 , helan-a0a251vmq8 , helan-a0a251rur6 , helan-a0a251ve88 , helan-a0a251rzb7 , helan-a0a251uh88 , helan-a0a251ux90 , helan-a0a251sb83 , helan-a0a251txv8 , helan-a0a251u1d0 , helan-a0a251uwi4 , helan-a0a251uwk5 , helan-a0a251uxe9 , helan-a0a251vi64

Title : Plant genetics. Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome - Chalhoub_2014_Science_345_950
Author(s) : Chalhoub B , Denoeud F , Liu S , Parkin IA , Tang H , Wang X , Chiquet J , Belcram H , Tong C , Samans B , Correa M , Da Silva C , Just J , Falentin C , Koh CS , Le Clainche I , Bernard M , Bento P , Noel B , Labadie K , Alberti A , Charles M , Arnaud D , Guo H , Daviaud C , Alamery S , Jabbari K , Zhao M , Edger PP , Chelaifa H , Tack D , Lassalle G , Mestiri I , Schnel N , Le Paslier MC , Fan G , Renault V , Bayer PE , Golicz AA , Manoli S , Lee TH , Thi VH , Chalabi S , Hu Q , Fan C , Tollenaere R , Lu Y , Battail C , Shen J , Sidebottom CH , Canaguier A , Chauveau A , Berard A , Deniot G , Guan M , Liu Z , Sun F , Lim YP , Lyons E , Town CD , Bancroft I , Meng J , Ma J , Pires JC , King GJ , Brunel D , Delourme R , Renard M , Aury JM , Adams KL , Batley J , Snowdon RJ , Tost J , Edwards D , Zhou Y , Hua W , Sharpe AG , Paterson AH , Guan C , Wincker P
Ref : Science , 345 :950 , 2014
Abstract : Oilseed rape (Brassica napus L.) was formed ~7500 years ago by hybridization between B. rapa and B. oleracea, followed by chromosome doubling, a process known as allopolyploidy. Together with more ancient polyploidizations, this conferred an aggregate 72x genome multiplication since the origin of angiosperms and high gene content. We examined the B. napus genome and the consequences of its recent duplication. The constituent An and Cn subgenomes are engaged in subtle structural, functional, and epigenetic cross-talk, with abundant homeologous exchanges. Incipient gene loss and expression divergence have begun. Selection in B. napus oilseed types has accelerated the loss of glucosinolate genes, while preserving expansion of oil biosynthesis genes. These processes provide insights into allopolyploid evolution and its relationship with crop domestication and improvement.
ESTHER : Chalhoub_2014_Science_345_950
PubMedSearch : Chalhoub_2014_Science_345_950
PubMedID: 25146293
Gene_locus related to this paper: braol-Q8GTM3 , braol-Q8GTM4 , brana-a0a078j4a9 , brana-a0a078e1m0 , brana-a0a078cd75 , brana-a0a078evd3 , brana-a0a078j4f0 , brana-a0a078cta5 , brana-a0a078cus4 , brana-a0a078f8c2 , brana-a0a078jql1 , brana-a0a078dgj3 , brana-a0a078hw50 , brana-a0a078cuu0 , brana-a0a078iyl8 , brana-a0a078dfa9 , brana-a0a078ic91 , brana-a0a078cnf7 , brana-a0a078fh41 , brana-a0a078ca65 , brana-a0a078ctc8 , brana-a0a078h021 , brana-a0a078h0h8 , brana-a0a078jx23 , brana-a0a078ci96 , brana-a0a078cqd7 , brana-a0a078dh94 , brana-a0a078h612 , brana-a0a078ild2 , brana-a0a078j2t3 , braol-a0a0d3dpb2 , braol-a0a0d3dx76 , brana-a0a078jxa8 , brana-a0a078i2k3 , braol-a0a0d3ef55 , brarp-m4dcj8 , brana-a0a078fw53 , brana-a0a078itf3 , brana-a0a078jsn1 , brana-a0a078jrt9 , brana-a0a078i6d2 , brana-a0a078jku0 , brana-a0a078fss7 , brana-a0a078i1l0 , brana-a0a078i402