Plant Mol Biol (2017) 93:283–298 DOI 10.1007/s11103-016-0561-9 The Arabidopsis THO/TREX component TEX1 functionally interacts with MOS11 and modulates mRNA export and alternative splicing events 1 1 1 1 2 Brian B. Sørensen · Hans F. Ehrnsberger · Silvia Esposito · Alexander Pfab · Astrid Bruckmann · 2 2 3 4 4 5 Judith Hauptmann · Gunter Meister · Rainer Merkl · Thomas Schubert · Gernot Längst · Michael Melzer · 1 1 Marion Grasser · Klaus D. Grasser Received: 8 August 2016 / Accepted: 10 November 2016 / Published online: 21 December 2016 © Springer Science+Business Media Dordrecht 2016 Abstract the mRNA export complex TREX-2 and multiple spliceo- Key message We identify proteins that associate with somal components. Plants defective in the THO component the THO core complex, and show that the TEX1 and TEX1 or in the mRNA export factor MOS11 (orthologue MOS11 components functionally interact, affecting of human CIP29) are mildly affected. However, tex1 mos11 mRNA export and splicing as well as plant development. double-mutant plants show marked defects in vegetative Abstract TREX (TRanscription-EXport) is a multipro- and reproductive development. In tex1 plants, the levels of tein complex that plays a central role in the coordination tasiRNAs are reduced, while miR173 levels are decreased of synthesis, processing and nuclear export of mRNAs. in mos11 mutants.
Plant Molecular Biology – Springer Journals
Published: Dec 21, 2016
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