A decade of disease survey data in a progeny-provenance trial: Dothistroma needle blight in Scots pine
Perry, A.; Moore, B.; Jones, S.; Kaur, S.; Crampton, B.; Gurung, A.; Stockan, J. A.; Cottrell, J. E.; Beaton, J. K.; Cavers, S.
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Longitudinal data on disease susceptibility in forest trees are rare but essential for understanding host-pathogen dynamics and genetic variation in susceptibility traits. We present a long-term multisite common garden dataset quantifying susceptibility of Scots pine (Pinus sylvestris) to Dothistroma needle blight. The dataset comprises annual disease assessments collected from the same trees across 11 years, spanning 168 families and 21 Scottish provenances. This design enables partitioning of genetic and environmental sources of variation, evaluation of temporal stability in host response, and estimation of variance components and narrow-sense heritability of susceptibility. The data support analyses of phenotypic plasticity, provenance-level responses, and interactions between disease susceptibility and other adaptive traits. This resource will facilitate predictive modelling of host susceptibility under current and future environmental conditions.
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