The effect of drought stress on heterozygosity–fitness correlations in pedunculate oak (Quercus robur) | Zendy

Guy Vranckx | Zendy; Hans Jacquemyn | Zendy; Joachim Mergeay | Zendy; Karen Cox | Zendy; Pieter Janssens | Zendy; Bie Gielen | Zendy; Bart Muys | Zendy; Olivier Honnay | Zendy

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The effect of drought stress on heterozygosity–fitness correlations in pedunculate oak (Quercus robur)

Author(s) -

Guy Vranckx,

Hans Jacquemyn,

Joachim Mergeay,

Karen Cox,

Pieter Janssens,

Bie Gielen,

Bart Muys,

Olivier Honnay

Publication year - 2014

Publication title -

annals of botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.567

H-Index - 176

eISSN - 1095-8290

pISSN - 0305-7364

DOI - 10.1093/aob/mcu025

Subject(s) - biology , quercus robur , loss of heterozygosity , forest fragmentation , fragmentation (computing) , climate change , ecology , allele , genetics , gene , biodiversity

The interaction between forest fragmentation and predicted climate change may pose a serious threat to tree populations. In small and spatially isolated forest fragments, increased homozygosity may directly affect individual tree fitness through the expression of deleterious alleles. Climate change-induced drought stress may exacerbate these detrimental genetic consequences of forest fragmentation, as the fitness response to low levels of individual heterozygosity is generally thought to be stronger under environmental stress than under optimal conditions.

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