Journalartikel

Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome


AutorenlisteChalhoub, B; Denoeud, F; Liu, SY; Parkin, IAP; Tang, HB; Wang, XY; Chiquet, J; Belcram, H; Tong, CB; 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, MX; Edger, PP; Chelaifa, H; Tack, D; Lassalle, G; Mestiri, I; Schnel, N; Le Paslier, MC; Fan, GY; Renault, V; Bayer, PE; Golicz, AA; Manoli, S; Lee, TH; Thi, VHD; Chalabi, S; Hu, Q; Fan, CC; Tollenaere, R; Lu, YH; Battail, C; Shen, JX; Sidebottom, CHD; Wang, XF; Canaguier, A; Chauveau, A; Berard, A; Deniot, G; Guan, M; Liu, ZS; Sun, FM; Lim, YP; Lyons, E; Town, CD; Bancroft, I; Wang, XW; Meng, JL; Ma, JX; Pires, JC; King, GJ; Brunel, D; Delourme, R; Renard, M; Aury, JM; Adams, KL; Batley, J; Snowdon, RJ; Tost, J; Edwards, D; Zhou, YM; Hua, W; Sharpe, AG; Paterson, AH; Guan, CY; Wincker, P

Jahr der Veröffentlichung2014

Seiten950-953

ZeitschriftScience

Bandnummer345

Heftnummer6199

ISSN0036-8075

DOI Linkhttps://doi.org/10.1126/science.1253435

VerlagAmerican Association for the Advancement of Science


Abstract
Oilseed rape (Brassica napus L.) was formed similar to 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 A(n) and C-n 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.



Zitierstile

Harvard-ZitierstilChalhoub, B., Denoeud, F., Liu, S., Parkin, I., Tang, H., Wang, X., et al. (2014) Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome, Science, 345(6199), pp. 950-953. https://doi.org/10.1126/science.1253435

APA-ZitierstilChalhoub, B., Denoeud, F., Liu, S., Parkin, I., Tang, H., Wang, X., Chiquet, J., Belcram, H., Tong, C., Samans, B., Correa, M., Da Silva, C., Just, J., Falentin, C., Koh, C., Le Clainche, I., Bernard, M., Bento, P., Noel, B., ...Wincker, P. (2014). Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome. Science. 345(6199), 950-953. https://doi.org/10.1126/science.1253435


Zuletzt aktualisiert 2025-21-05 um 16:14