Journal
PLANT CELL
Volume 28, Issue 7, Pages 1602-1615Publisher
AMER SOC PLANT BIOLOGISTS
DOI: 10.1105/tpc.16.00211
Keywords
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Funding
- Israel Science foundation [539/14]
- U.S.-Israel Binational Agricultural Research and Development Fund [IS 4531-12(c)]
- German-Israel Project Cooperation Foundation [OR309/1-1, FE552/12-1]
- National Program of Sustainability I, Ministry of Education, Youth, and Sports, Czech Republic (sustainable development of research in the Centre of Region Hana) [LO1204]
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Leaf morphogenesis and differentiation are highly flexible processes, resulting in a large diversity of leaf forms. The development of compound leaves involves an extended morphogenesis stage compared with that of simple leaves, and the tomato (Solanum lycopersicum) mutant clausa (clau) exposes a potential for extended morphogenesis in tomato leaves. Here, we report that the CLAU gene encodes a MYB transcription factor that has evolved a unique role in compound-leaf species to promote an exit from the morphogenetic phase of tomato leaf development. We show that CLAU attenuates cytokinin signaling, and that clau plants have increased cytokinin sensitivity. The results suggest that flexible leaf patterning involves a coordinated interplay between transcription factors and hormones.
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