Vlaanderen.be

Onderzoeksoutput

Can climate change exacerbate the genetic consequences of forest fragmentation? Effects of drought stress on heterozygosity-fitness correlations in pedunculate oak

Onderzoeksoutput: Bijdrage aan congresPaper/Powerpoint/Abstract

Standard

Can climate change exacerbate the genetic consequences of forest fragmentation? Effects of drought stress on heterozygosity-fitness correlations in pedunculate oak. / Vranckx, Guy; Jacquemyn, Hans; Mergeay, Joachim; Cox, Karen; Janssens, Pieter; Gielen, Bie; Muys, Bart; Honnay, Olivier.

2013. Paper gepresenteerd op ClimTree 2013, International Conference on Climate Change and Tree Responses in Central European Forests, Zurich, Zwitserland.

Onderzoeksoutput: Bijdrage aan congresPaper/Powerpoint/Abstract

Harvard

Vranckx, G, Jacquemyn, H, Mergeay, J, Cox, K, Janssens, P, Gielen, B, Muys, B & Honnay, O 2013, 'Can climate change exacerbate the genetic consequences of forest fragmentation? Effects of drought stress on heterozygosity-fitness correlations in pedunculate oak', Paper gepresenteerd op ClimTree 2013, International Conference on Climate Change and Tree Responses in Central European Forests, Zurich, Zwitserland, 1/09/13 - 5/09/13.

APA

Vranckx, G., Jacquemyn, H., Mergeay, J., Cox, K., Janssens, P., Gielen, B., ... Honnay, O. (2013). Can climate change exacerbate the genetic consequences of forest fragmentation? Effects of drought stress on heterozygosity-fitness correlations in pedunculate oak. Paper gepresenteerd op ClimTree 2013, International Conference on Climate Change and Tree Responses in Central European Forests, Zurich, Zwitserland.

Author

Vranckx, Guy ; Jacquemyn, Hans ; Mergeay, Joachim ; Cox, Karen ; Janssens, Pieter ; Gielen, Bie ; Muys, Bart ; Honnay, Olivier. / Can climate change exacerbate the genetic consequences of forest fragmentation? Effects of drought stress on heterozygosity-fitness correlations in pedunculate oak. Paper gepresenteerd op ClimTree 2013, International Conference on Climate Change and Tree Responses in Central European Forests, Zurich, Zwitserland.1 blz.

Bibtex

@conference{27cbc757e6cd48f1aba859f3f73fc44d,
title = "Can climate change exacerbate the genetic consequences of forest fragmentation?: Effects of drought stress on heterozygosity-fitness correlations in pedunculate oak",
abstract = "In small and spatially isolated forest fragments, increased homozygosity may directly affect individual tree fitness, through the expression of deleterious alleles that influence morphological and physiological traits. Climate change induced drought may exacerbate the detrimental genetic consequences of forest fragmentation because the fitness response to low levels of heterozygosity is generally thought to be more pronounced under environmental stress than under optimal conditions. To test this hypothesis, we performed a greenhouse experiment in which fitness traits of 6-months-old seedlings of Quercus robur, differing in multi-locus heterozygosity (MLH), were recorded during 3 months under both a well-watered and a drought stress treatment (50 seedlings per treatment). Heterozygosity-fitness correlations (HFC) were examined by correlating transpiration parameters and various growth traits of individual trees to their MLH and by studying their response to drought stress. We obtained weak, but significant effects of the MLH ( = 3–11{\%}, p < 0.05) on several fitness traits. High atmospheric stress (e.g. high vapor pressure deficit (VPD) influenced the strength of the HFCs of the transpiration parameters, whereas only a limited effect of the irrigation treatment was observed. Considering ongoing climate change, increased VPD levels in the future may strengthen the negative fitness responses of trees to low MLH.",
author = "Guy Vranckx and Hans Jacquemyn and Joachim Mergeay and Karen Cox and Pieter Janssens and Bie Gielen and Bart Muys and Olivier Honnay",
year = "2013",
language = "English",
note = "null ; Conference date: 01-09-2013 Through 05-09-2013",

}

RIS

TY - CONF

T1 - Can climate change exacerbate the genetic consequences of forest fragmentation?

T2 - Effects of drought stress on heterozygosity-fitness correlations in pedunculate oak

AU - Vranckx, Guy

AU - Jacquemyn, Hans

AU - Mergeay, Joachim

AU - Cox, Karen

AU - Janssens, Pieter

AU - Gielen, Bie

AU - Muys, Bart

AU - Honnay, Olivier

PY - 2013

Y1 - 2013

N2 - In small and spatially isolated forest fragments, increased homozygosity may directly affect individual tree fitness, through the expression of deleterious alleles that influence morphological and physiological traits. Climate change induced drought may exacerbate the detrimental genetic consequences of forest fragmentation because the fitness response to low levels of heterozygosity is generally thought to be more pronounced under environmental stress than under optimal conditions. To test this hypothesis, we performed a greenhouse experiment in which fitness traits of 6-months-old seedlings of Quercus robur, differing in multi-locus heterozygosity (MLH), were recorded during 3 months under both a well-watered and a drought stress treatment (50 seedlings per treatment). Heterozygosity-fitness correlations (HFC) were examined by correlating transpiration parameters and various growth traits of individual trees to their MLH and by studying their response to drought stress. We obtained weak, but significant effects of the MLH ( = 3–11%, p < 0.05) on several fitness traits. High atmospheric stress (e.g. high vapor pressure deficit (VPD) influenced the strength of the HFCs of the transpiration parameters, whereas only a limited effect of the irrigation treatment was observed. Considering ongoing climate change, increased VPD levels in the future may strengthen the negative fitness responses of trees to low MLH.

AB - In small and spatially isolated forest fragments, increased homozygosity may directly affect individual tree fitness, through the expression of deleterious alleles that influence morphological and physiological traits. Climate change induced drought may exacerbate the detrimental genetic consequences of forest fragmentation because the fitness response to low levels of heterozygosity is generally thought to be more pronounced under environmental stress than under optimal conditions. To test this hypothesis, we performed a greenhouse experiment in which fitness traits of 6-months-old seedlings of Quercus robur, differing in multi-locus heterozygosity (MLH), were recorded during 3 months under both a well-watered and a drought stress treatment (50 seedlings per treatment). Heterozygosity-fitness correlations (HFC) were examined by correlating transpiration parameters and various growth traits of individual trees to their MLH and by studying their response to drought stress. We obtained weak, but significant effects of the MLH ( = 3–11%, p < 0.05) on several fitness traits. High atmospheric stress (e.g. high vapor pressure deficit (VPD) influenced the strength of the HFCs of the transpiration parameters, whereas only a limited effect of the irrigation treatment was observed. Considering ongoing climate change, increased VPD levels in the future may strengthen the negative fitness responses of trees to low MLH.

M3 - Paper/Powerpoint/Abstract

ER -

Onderzoeksoutput (gerelateerd via auteurs)
Projecten (gerelateerd via auteurs)
Winkelwagen
Toevoegen aan winkelwagen Opgeslagen in winkelwagen

Kopieer de tekst uit dit veld...

Documenten

Documenten

Relaties
Bekijk grafiek van relaties