Population-level plasticity drives plant trait variation along elevation

Rhododendron maximum in a common garden experiment at the University of Tennessee (photo credit: Alix Pfennigwerth).

Within a species, plant traits may vary substantially along environmental gradients. However, is such variation (1) consistent across locations and (2) genetic or non-genetic (i.e., plastic) in nature? In a recent ‘Editor’s Choice’ article published in AoB PLANTS, Pfennigwerth et al. combined field observations and a common garden experiment to assess Rhododendron maximum trait variation within and among three elevation gradients. Their findings reveal that trait variation along environmental gradients in this species is (1) highly population-specific and (2) driven primarily by non-genetic factors (i.e., plasticity). Overall, their findings highlight the importance of examining multiple locations and suggest that trait responses to environmental change vary by location.

AoBPLANTS

AoB PLANTS is an open-access, online journal that publishes peer-reviewed articles on all aspects of environmental and evolutionary biology. Published by Oxford University Press, AoB PLANTS provides a fast-track pathway for publishing high-quality research, where papers are available online to anyone, anywhere free of charge. Reasons to publish in AoB PLANTS include double-blind peer review of manuscripts, rapid processing time and low open-access charges.

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