Climate adaptation inP. trichocarpa: key adaptive loci identified for stomata and leaf traits DOI

Marie Klein,

Zi Yang Meng, Jack Bailey-Bale

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: July 16, 2024

Abstract Identifying the genetic basis of traits underlying climate adaptation remains a key goal for predicting species responses to change, enabling elucidation gene targets future climate-resilient crops. Here, we measured 14 leaf and stomatal under control (well-watered) drought conditions, subsampling diversity collection over 1,300 Populus trichocarpa genotypes, potential biofuel feedstock crop. Stomatal were correlated with origin such that those originating from environments subject water deficit tended have smaller stomata, but higher density. also morphology, larger leaves having stomata lower density mirrored in correlations origin. The direction plastic - reduced size mirrors seen among genotypes respect aridity environmental Genome-Wide Association Studies (GWAS) identified loci trait diversity, including candidates contributing size. We used predict unknown values found these predicted phenotypes confirmed empirically allele effects. Finally, evidence climates may select alleles decreased size, strength selection depending on availability moisture. These findings reveal adaptive variation physiological along loci, implications breeding providing insights into change. Highlight Research reveals linked tolerance, arid regions exhibiting offering change sustainable production.

Language: Английский

Evaluating the effectiveness of climate-based seed transfer and assisted migration: a case study of lodgepole pine (Pinus contorta var. latifolia Dougl.) and interior spruce (Picea engelmanii x glauca (Moench) Voss and their hybrids) in western Canada DOI Creative Commons
Dawei Luo, Gregory A. O’Neill, Barb R. Thomas

et al.

Annals of Forest Science, Journal Year: 2025, Volume and Issue: 82(1)

Published: Feb. 17, 2025

Abstract Key message Forest assisted migration applied in combination with a climate-based seed transfer system to two North American tree species: lodgepole pine ( Pinus contorta var. latifolia Dougl.) and interior spruce Picea engelmanii x glauca (Moench) Voss their hybrids), resulted increased height growth substantially expanded deployment area, compared geographic-based British Columbia, Canada. Context (CBST) are recent innovations that have received significant attention as climate change adaptation strategies, but claims regarding merits not been well evaluated. Aims We aim test the claim CBST, combined migration, can provide closer matching of source plantation climate, greater growth, wider seedlot area than conventional (GBST). Methods Using functions developed from comprehensive, wide-ranging provenance trials spruce, populations across western Canada, we estimated relative at rotation for large set simulated transfers CBST without GBST system. Results When were used combination, volume was 13% (lodgepole pine) or 6% (interior spruce) age 2.2 times 7.3 expected Height increases primarily associated whereas use rather GBST. Conclusion Converting conjunction should improve Columbia. This approach will also significantly offset impacts on rates, increase reduce collection costs, flexibility users.

Language: Английский

Citations

0
Full title: Drought stress responses deconstructed: a comprehensive approach for Norway spruce seedlings using high-throughput phenotyping with integrated metabolomics and transcriptomics DOI Creative Commons
Muhammad Ahmad,

Sebastian Seitner,

Jakub Jeż

et al.

Plant Phenomics, Journal Year: 2025, Volume and Issue: unknown, P. 100037 - 100037

Published: March 1, 2025

Language: Английский

Citations

0
Future carbon sequestration potential in a widespread transcontinental boreal tree species: Standing genetic variation matters! DOI Creative Commons
Etienne Robert, P. Lenz, Yves Bergeron

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(6)

Published: June 1, 2024

Climate change (CC) necessitates reforestation/afforestation programs to mitigate its impacts and maximize carbon sequestration. But comprehending how tree growth, a proxy for fitness resilience, responds CC is critical these programs' effectiveness. Variability in response across populations can notably be influenced by the standing genetic variation encompassing both neutral adaptive diversity. Here, framework proposed assess growth potential at population scale while accounting variation. We applied this black spruce (BS, Picea mariana [Mill] B.S.P.), with objectives (1) determine key climate variables having impacted BS from 1974 2019, (2) examine relative roles of local adaptation phylogeographic structure response, (3) project under two Shared Socioeconomic Pathways taking into account. modeled using machine learning algorithm trained dendroecological data obtained over 2600 trees (62 divided three clusters) four 48-year-old common gardens, simulated until year 2100 garden locations. Our study revealed that high summer autumn temperatures negatively growth. As consequence warming, species projected experience decline end century, suggesting maladaptation anticipated threat sequestration capacity. This being said, we observed clear difference within among clusters, western cluster more than central eastern clusters. results show intraspecific variation, associated structure, must considered when estimating widespread CC.

Language: Английский

Citations

1
Spatially heterogeneous selection and inter-varietal differentiation maintain population structure and local adaptation in a widespread conifer DOI Creative Commons
Pablo Peláez, Gustavo P. Lorenzana,

Kailey Baesen

et al.

BMC Ecology and Evolution, Journal Year: 2024, Volume and Issue: 24(1)

Published: Sept. 3, 2024

Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) plays a critical role in the ecology and economy of Western North America. This conifer species comprises two distinct varieties: coastal variety (var. menziesii) along Pacific coast, interior glauca) spanning Rocky Mountains into Mexico, with instances inter-varietal hybridization Washington British Columbia. Recent investigations have focused on assessing environmental pressures shaping Douglas-fir's genomic variation for better understanding its evolutionary adaptive responses. Here, we characterize range-wide population structure, estimate levels, identify candidate loci climate adaptation, forecast shifts distribution under future climates.

Language: Английский

Citations

0
Weak Local Adaptation to Climate in Seedlings of a Deciduous Conifer Suggests Limited Benefits and Risks of Assisted Gene Flow DOI Creative Commons
Beth Roskilly, Sally N. Aitken

Evolutionary Applications, Journal Year: 2024, Volume and Issue: 17(9)

Published: Sept. 1, 2024

ABSTRACT Assisted migration provides a potential solution to mitigate the increasing risks of forest maladaptation under climate change. Western larch ( Larix occidentalis Nutt.) is deciduous conifer species undergoing assisted beyond its natural range in British Columbia into areas that have become suitable based on climatic niche modelling. We established seedling common garden experiment raised beds warm location outside for three growing seasons, with 52 populations from across and 28 selectively bred families Columbia. Intraspecific genetic variation growth, phenology cold hardiness was analyzed test signals local adaptation effects selective breeding better understand implications future climates. found weak differentiation among all traits, proportion additive variance Q ST ) ranging 0.10 0.28. Cold had weakest population exhibited no clines geographic or variables. Selective faster growth has maintained bud flush despite delaying set. The we western seedlings highlights gene flow likely limited benefits mitigating Our findings suggest may be important management strategies

Language: Английский

Citations

0
Seasonal vegetation dynamics for phenotyping using multispectral drone imagery: Genetic differentiation, climate adaptation, and hybridization in a common-garden trial of interior spruce (Picea engelmannii × glauca) DOI
Samuel Grubinger, Nicholas C. Coops, Gregory A. O’Neill

et al.

Remote Sensing of Environment, Journal Year: 2024, Volume and Issue: 317, P. 114512 - 114512

Published: Nov. 22, 2024

Language: Английский

Citations

0
Climate adaptation inP. trichocarpa: key adaptive loci identified for stomata and leaf traits DOI

Marie Klein,

Zi Yang Meng, Jack Bailey-Bale

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: July 16, 2024

Abstract Identifying the genetic basis of traits underlying climate adaptation remains a key goal for predicting species responses to change, enabling elucidation gene targets future climate-resilient crops. Here, we measured 14 leaf and stomatal under control (well-watered) drought conditions, subsampling diversity collection over 1,300 Populus trichocarpa genotypes, potential biofuel feedstock crop. Stomatal were correlated with origin such that those originating from environments subject water deficit tended have smaller stomata, but higher density. also morphology, larger leaves having stomata lower density mirrored in correlations origin. The direction plastic - reduced size mirrors seen among genotypes respect aridity environmental Genome-Wide Association Studies (GWAS) identified loci trait diversity, including candidates contributing size. We used predict unknown values found these predicted phenotypes confirmed empirically allele effects. Finally, evidence climates may select alleles decreased size, strength selection depending on availability moisture. These findings reveal adaptive variation physiological along loci, implications breeding providing insights into change. Highlight Research reveals linked tolerance, arid regions exhibiting offering change sustainable production.

Language: Английский

Citations

0