Notice
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 5
- document 1 document 2 document 3
- niveau 1 niveau 2 niveau 3
Descriptif
GENTREE Final Conference :
Pascal MILESI - Uppsala University · Sweden
GENTREE Final Conference 'Genetics to the rescue - managing forests sustainably in a changing environment'
27-31 January 2020, Avignon, France
Pascal MILESI - Uppsala University · Sweden : Genomic data providesnew insights on the demographic history, local adaptation pattern andgenetic basis of quantitative traits in Norway spruce.
Norway spruce (Picea abies) is a dominant conifer species of majoreconomic importance in northern Europe.
Extensive breeding programswere established to improve phenotypic traits of economic interest.In a first study, based on the exome-sequencing of > 1500 trees,we showed that the origin of the breeding material in southern Swedenwas highly heterogeneous: some were of local origin but many wererecent introductions from the rest of the natural range.
The mixedorigin of the trees together with phenotypic data retrieved from theSwedish breeding program offered a unique opportunity to i)investigate the evolutionary and demographic history of Norway spruce(Chen*, Li*, Milesi* et al. 2019), and ii) dissect the genetic basisof local adaptation of three quantitative traits: height, diameterand bud‐burst (Milesi et al. 2019). First, we reasoned that highpairwise correlations between genotype, phenotype and climaticvariables at origin would not be obtained if the current geneticstructure among populations were only the result of past demographicevents and isolation by distance, reflecting a strong pattern ofadaptation to ancestral environment.
Through genome‐wideassociation studies (GWAS), we then investigated both the geneticbasis of local adaptation to climate and the genetic control of thethree afore-mentioned phenotypic traits in Norway spruce. Inparticular, we showed that the genetic control of growth traits ismuch more polygenic than that of bud‐burst. Our data alsohighlighted how traits with different patterns of geographicalvariation can be used to assess the impact of correction forpopulation structure in GWAS.
From an applied perspective, we arguethat while data from breeding programs might sometimes be incompleteor suboptimal, they are readily available and contain a lot ofvaluable information for evolutionary biologists.
Dans la même collection
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 29
Evaluating the accuracy of genomic prediction for the management and conservation of small secluded natural tree populations mall isolated populations are threatened by the action of inbreeding and
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 21
Selective breeding produces multi-locus responses in adaptive genomic variation of lodgepole pine
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 13
Adaptive rangewide latitudinal divergence but no evidence offiner-scale local adaptation in early-life traits in Pinus sylvestris
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 4
Genomics ofclinal local adaptation in Pinus sylvestris under continuousenvironmental and spatial genetic setting
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 26
GENTREE Final Conference : Ian MACLACHLAN - University of British Columbia Vancouver · Canada GENTREE Final Conference 'Genetics to the rescue - managing forests sustainably in a
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 18
Conserving genetic diversity in botanic gardens: calculating how much to conserve
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 10
Local adaptation, phenotypic plasticity or both?
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 1
Propos introductifs et contexte / Welcome addresses and setting the scene
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 31
The economical potential of investing in breeding forest material : management effects and financial performance at stand level in 4 European study cases
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 23
Approaches to ensure ex situ conservation activities capture forest genetic diversity: sharing experiences from the UK National Tree Seed Project
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 15
GENTREE Final Conference : Claire GODINEAU - University of Montpellier · France GENTREE Final Conference 'Genetics to the rescue - managing forests sustainably in a changing environment'
-
[COLLOQUE] GENTREE Final Conference 27-31 January 2020 séance 7
GENTREE Final Conference : Katharina BUDDE - INRAE Bordeaux · France GENTREE Final Conference 'Genetics to the rescue - managing forests sustainably in a changing environment' 27-31 January