The juvenile‐to‐adult vegetative phase change in flowering plants is mediated by a decrease in miR156 levels. Downregulation of Here, we show that histone deacetylase 9 (HDA9) is recruited to H2Aub and H3K27me3 become enriched at Our results suggest that PKL associates with histone deacetylases to erase H3K27ac and promote PRC1 and PRC2 activities to mediate vegetative phase change and maintain plants in the adult phase after the phase transition.
Plants transition through juvenile and adult phases of vegetative development in a process known as vegetative phase change (VPC). In poplars (genus We examined developmental morphology of seed‐grown and In seed‐grown plants, most traits changed from node‐to‐node during the first 3 months of development but remained constant after node 25. Many traits remained unchanged in clones over‐expressing miR156, or were enhanced when miR156 was lowered, demonstrating their natural progression is regulated by the miR156/SPL pathway. The characteristic leaf fluttering of Vegetative development in plants grown from culture mirrored that of seed‐grown plants, allowing direct comparison between plants often used in research and those found in nature. These results provide a foundation for further research on the role of VPC in the ecology and evolution of this economically important genus.
- NSF-PAR ID:
- 10449917
- Publisher / Repository:
- Wiley-Blackwell
- Date Published:
- Journal Name:
- New Phytologist
- Volume:
- 231
- Issue:
- 1
- ISSN:
- 0028-646X
- Page Range / eLocation ID:
- p. 351-364
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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