Journal
PLANT SIGNALING & BEHAVIOR
Volume 6, Issue 1, Pages 105-108Publisher
TAYLOR & FRANCIS INC
DOI: 10.4161/psb.6.1.14186
Keywords
CLE; CLAVATA3-WUSCHEL; cell signaling and development; root apical meristem; arabidopsis
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Funding
- National Science Foundation [MCB-0313546]
- Agricultural and Environmental Chemistry Graduate Program at UC, Berkeley
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CLE, which is the term for the CLV3/ESR-related gene family, is thought to participate in CLAVATA3-WUSCHEL (CLV3-WUS) and CLV3-WUS-like signaling pathways to regulate meristem activity in plant. Although some CLE genes are expressed in meristems, many CLE genes appear to express in a variety of tissues/cells. Here we report that CLE14 and CLE20 express in various specific tissues/cells outside the shoot/ root apical meristem (SAM/RAM), including in highly differentiated cells, and at different developmental stages. Overexpressing CLE14 or CLE20 also causes multiple phenotypes, which is consistent with its expression pattern in Arabidopsis. These results suggest that CLE genes may play multiple roles and involve other signaling cascades in addition to the CLV3-WUS and CLV3-WUS-like pathways.
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