RT Journal Article
T1 Dynamics of the Spanish fir transcriptome in nature: Metabolic pathways and gene networks involved in the response to climate stress
A1 Blanca Reyes, Irene Victoria
A1 Torés España, María
A1 Lechuga, Víctor
A1 Llebrés, María Teresa
A1 De-la-Torre-Fazio, Fernando Nicolás
A1 Carreira de la Fuente, José Antonio
A1 Ávila-Sáez, Concepción
A1 Cánovas-Ramos, Francisco Miguel
A1 Castro-Rodríguez, Vanessa Viviana
K1 Abetos españoles - Aspectos moleculares
K1 Plantas - Efectos del estrés
AB Circum-Mediterranean firs, and particularly the relic Spanish-fir from the south of the Iberian Peninsula (Abies pinsapo Boiss.), are among the most drought-sensitive and vulnerable to climate change within the broad context of Mediterranean forest species. Forest decline and die-back episodes associated to warming trends and recurrent droughts of increasing duration and intensity in the last decades point to an increasing vulnerability of A. pinsapo local populations. In this work, physiological and transcriptional analyses were combined to assess the response of trees growing in natural forests under contrasting conditions. The results show a modulation of the transcriptome in response to climatic stress with substantial changes in the expression of genes involved in water stress, aromatic amino acid metabolism, and transcription factors associated with the transcriptional regulation of the observed patterns of gene expression. Roots were determined to be the primary organs involved in the transcriptional response to stress, which may be mediated by a gene-network including interactions among structural and regulatory genes. Interactive elements comprise genes encoding stress-related proteins of the ApLEA family, ApADH, the first committed enzyme in tyrosine biosynthesis, and root-specific transcription factors implicated in stress regulation belonging to the ApERF, ApYABBY, and ApNAC superfamilies. Data provide new insights to understand the response of Spanish firs to current climatic pressure by the identification of individual genes and gene-networks potentially involved in local adaptation. This new knowledge will facilitate comparative studies of gene variation in the Spanish fir populations using the identified genes as molecular markers for the selection of the best adapted genotypes in the response to climate stress.
PB Elsevier
YR 2025
FD 2025
LK https://hdl.handle.net/10630/40524
UL https://hdl.handle.net/10630/40524
LA eng
NO Blanca-Reyes I, Torés-España M, Lechuga V, Llebrés MT, de la Torre F, Carreira JA, Ávila C, Cánovas FM, Castro-Rodríguez VV Dynamics of the Spanish fir transcriptome in nature: Metabolic pathways and gene networks involved in the response to climate stress Plant Stress (2025) 18, 101009
NO TED2021-129691B-I00
NO PID2021-125040OB-I00
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026