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Editor's Picks

Pages from Gert's book
It was a great pleasure for me to be able to write about my...
Gert Fortgens | Feb 15, 2024
Quercus marlipoensis acorns
A new study has analyzed the germination characteristics of...
Website Editor | Feb 15, 2024
Gall on Quercus grahamii
A new species of oak gall wasp has been named in honor of...
Website Editor | Feb 14, 2024

Plant Focus

A small but mature Alabama sandstone oak producing acorns © Patrick Thompson
A Critically Endangered dwarf oak 

Oak Genome Reveals Facets of Long Lifespan

New research published in Nature Plants provides insights into why oaks are long lived. A team of researchers including IOS-member Antoine Kremer investigated the genomic features associated with a long lifespan by sequencing, assembling, and annotating the oak genome. They were able to follow the parallel evolution of genomic characteristics potentially underpinning tree longevity by comparing the whole-genome sequence for oak with that for other plants. The study demonstrates that oaks are able to accumulate mutations in stem cells present in the shoot of apical meristems and that these somatic mutations are heritable. The transmission of somatic mutations contributes to the expansion of disease-resistance gene families in trees and also to the considerable genetic diversity of oaks. As stated in the study’s conclusion: “This work poses new research questions about the contribution of this mutational load in adaptation, in particular with regard to defences against new pests and pathogens.”

You can download the study here.