PMID- 26870067
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20160212
LR  - 20200930
IS  - 1664-462X (Print)
IS  - 1664-462X (Electronic)
IS  - 1664-462X (Linking)
VI  - 7
DP  - 2016
TI  - Genetic Adaptation vs. Ecophysiological Plasticity of Photosynthetic-Related 
      Traits in Young Picea glauca Trees along a Regional Climatic Gradient.
PG  - 48
LID - 10.3389/fpls.2016.00048 [doi]
LID - 48
AB  - Assisted population migration (APM) is the intentional movement of populations 
      within a species range to sites where future environmental conditions are 
      projected to be more conducive to growth. APM has been proposed as a proactive 
      adaptation strategy to maintain forest productivity and to reduce the 
      vulnerability of forest ecosystems to projected climate change. The validity of 
      such a strategy will depend on the adaptation capacity of populations, which can 
      partially be evaluated by the ecophysiological response of different genetic 
      sources along a climatic gradient. This adaptation capacity results from the 
      compromise between (i) the degree of genetic adaptation of seed sources to their 
      environment of origin and (ii) the phenotypic plasticity of functional trait 
      which can make it possible for transferred seed sources to positively respond to 
      new growing conditions. We examined phenotypic variation in morphophysiological 
      traits of six seed sources of white spruce (Picea glauca [Moench] Voss) along a 
      regional climatic gradient in Quebec, Canada. Seedlings from the seed sources 
      were planted at three forest sites representing a mean annual temperature (MAT) 
      gradient of 2.2 degrees C. During the second growing season, we measured height growth 
      (H2014) and traits related to resources use efficiency and photosynthetic rate (A 
      max). All functional traits showed an adaptive response to the climatic gradient. 
      Traits such as H2014, A max, stomatal conductance (g s ), the ratio of mesophyll 
      to stomatal conductance, water use efficiency, and photosynthetic nitrogen-use 
      efficiency showed significant variation in both physiological plasticity due to 
      the planting site and seed source variation related to local genetic adaptation. 
      However, the amplitude of seed source variation was much less than that related 
      to plantation sites in the area investigated. The six seed sources showed a 
      similar level of physiological plasticity. H2014, A max and g s , but not 
      carboxylation capacity (V cmax), were correlated and decreased with a reduction 
      of the average temperature of the growing season at seed origin. The clinal 
      variation in H2014 and A max appeared to be driven by CO2 conductance. The 
      presence of locally adapted functional traits suggests that the use of APM may 
      have advantages for optimizing seed source productivity in future local climates.
FAU - Benomar, Lahcen
AU  - Benomar L
AD  - Faculte de Foresterie, de Geographie et de Geomatique, Centre D'etude de la 
      Foret, Universite Laval Quebec, QC, Canada.
FAU - Lamhamedi, Mohammed S
AU  - Lamhamedi MS
AD  - Direction de la Recherche Forestiere, Ministere des Forets, de la Faune et des 
      Parcs Quebec, QC, Canada.
FAU - Rainville, Andre
AU  - Rainville A
AD  - Direction de la Recherche Forestiere, Ministere des Forets, de la Faune et des 
      Parcs Quebec, QC, Canada.
FAU - Beaulieu, Jean
AU  - Beaulieu J
AD  - Faculte de Foresterie, de Geographie et de Geomatique, Centre D'etude de la 
      Foret, Universite Laval Quebec, QC, Canada.
FAU - Bousquet, Jean
AU  - Bousquet J
AD  - Faculte de Foresterie, de Geographie et de Geomatique, Centre D'etude de la 
      Foret, Universite Laval Quebec, QC, Canada.
FAU - Margolis, Hank A
AU  - Margolis HA
AD  - Faculte de Foresterie, de Geographie et de Geomatique, Centre D'etude de la 
      Foret, Universite Laval Quebec, QC, Canada.
LA  - eng
PT  - Journal Article
DEP - 20160203
PL  - Switzerland
TA  - Front Plant Sci
JT  - Frontiers in plant science
JID - 101568200
PMC - PMC4737914
OTO - NOTNLM
OT  - acclimation
OT  - assisted migration
OT  - climate change
OT  - functional traits
OT  - local adaptation
OT  - mesophyll conductance
OT  - photosynthetic capacity
OT  - white spruce
EDAT- 2016/02/13 06:00
MHDA- 2016/02/13 06:01
PMCR- 2016/01/01
CRDT- 2016/02/13 06:00
PHST- 2015/11/29 00:00 [received]
PHST- 2016/01/12 00:00 [accepted]
PHST- 2016/02/13 06:00 [entrez]
PHST- 2016/02/13 06:00 [pubmed]
PHST- 2016/02/13 06:01 [medline]
PHST- 2016/01/01 00:00 [pmc-release]
AID - 10.3389/fpls.2016.00048 [doi]
PST - epublish
SO  - Front Plant Sci. 2016 Feb 3;7:48. doi: 10.3389/fpls.2016.00048. eCollection 2016.