RT Journal Article
T1 Wood development regulators involved in apical growth in Pinus canariensis
A1 Chano, Víctor
A1 Sobrino Plata, Juan
A1 Collada, Carmen
A1 Soto, Alvaro
AB The shoot apical meristem is responsible of seasonal length increase in plants. In woody plants transition from primary to secondary growth is also produced during seasonal apical growth. These processes are controlled by different families of transcription factors.Levels of transcriptomic activity during apical growth were measured by means of a cDNA microarray designed from sequences related to meristematic activity in Pinus canariensis. The identification of differentially expressed genes was performed using a time-course analysis.A total of 7170 genes were differentially expressed and grouped in six clusters according to their expression profiles. We identified master regulators, such as WUSCHEL-like HOMEOBOX (WOX), to be involved in the first stages of apical development, i.e. growth of primary tissues, while other transcription factors, such as Class III HOMEODOMAIN-LEUCINE ZIPPER (HD-ZIP III) and KNOTTED-like (KNOX) and BEL1-like (BELL) HOMEODOMAIN proteins, were found to be induced during last stages of apical seasonal development, already with secondary growth.Our results reveal the main expression patterns of these genes during apical development and the transition from primary to secondary stem growth. In particular, the regulatory factors identified play key roles in controlling stem architecture and constitute candidate genes for the study of other development processes in conifers.
PB Wiley
SN 1435-8603
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/99285
UL https://hdl.handle.net/20.500.14352/99285
LA eng
NO Chano, V., et al. «Wood Development Regulators Involved in Apical Growth in Pinus Canariensis». Plant Biology, editado por B. Hause, vol. 23, n.o 3, mayo de 2021, pp. 438-44. https://doi.org/10.1111/plb.13228.
NO European Commission
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO Ministerio de Agricultura (España)
DS Docta Complutense
RD 6 abr 2025