Repeated polyploidization of <em>Gossypium</em> genomes and the evolution of spinnable cotton fibres.
- Paterson, A.H.
- Wendel, J.F.
- Gundlach, H.
- Guo, H.
- Jenkins, J.
- Jin, D.C.
- Llewellyn, D.
- Showmaker, K.C.
- Shu, S.Q.
- Udall, J.
- Yoo, M.J.
- Byers, R.
- Chen, W.
- Doron-Faigenboim, A.
- Duke, M.V.
- Gong, L.
- Grimwood, J.
- Grover, C.
- Grupp, K.
- Hu, G.J.
- Lee, T.H.
- Li, J.P.
- Lin, L.F.
- Liu, T.
- Marler, B.S.
- Page, J.T.
- Roberts, A.W.
- Romanel, E.
- Sanders, W.S.
- Szadkowski, E.
- Tan, X.
- Tang, H.B.
- Xu, C.M.
- Wang, J.P.
- Wang, Z.N.
- Zhang, D.
- Zhang, L.
- Ashrafi, H.
- Bedon, F.
- Bowers, J.E.
- Brubaker, C.L.
- Chee, P.W.
- Das, S.
- Gingle, A.R.
- Haigler, C.H.
- Harker, D.
- Hoffmann, L.V.
- Hovav, R.
- Jones, D.C.
- Lemke, C.
- Mansoor, S.
- Rahman, M.U.
- Rainville, L.N.
- Rambani, A.
- Reddy, U.K.
- Rong, J.K.
- Saranga, Y.
- Scheffler, B.E.
- Scheffler, J.A.
- Stelly, D.M.
- Triplett, B.A.
- van Deynze, A.
- Vaslin, M.F.S.
- Waghmare, V.N.
- Walford, S.A.
- Wright, R.J.
- Zaki, E.A.
- Zhang, T.Z.
- Dennis, E.S.
- Mayer, K.F.X.
- Peterson, D.G.
- Rokhsar, D.S.
- Wang, X.Y.
- Schmutz, J.
DOIAbstract
Polyploidy often confers emergent properties, such as the higher fibre productivity and quality of tetraploid cottons than diploid cottons bred for the same environments(1). Here we show that an abrupt five-to sixfold ploidy increase approximately 60 million years (Myr) ago, and allopolyploidy reuniting divergent Gossypium genomes approximately 1-2 Myr ago(2), conferred about 30-36-fold duplication of ancestral angiosperm (flowering plant) genes in elite cottons (Gossypium hirsutum and Gossypium barbadense), genetic complexity equalled only by Brassica(3) among sequenced angiosperms. Nascent fibre evolution, before allopolyploidy, is elucidated by comparison of spinnable-fibred Gossypium herbaceum A and non-spinnable Gossypium longicalyx F ...
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