Plant Mol Biol (2017) 94:303–318 DOI 10.1007/s11103-017-0608-6 Transcriptomic analysis of molecular responses in Malus domestica ‘M26’ roots affected by apple replant disease 1 1 1 Stefan Weiß · Melanie Bartsch · Traud Winkelmann Received: 15 August 2016 / Accepted: 23 March 2017 / Published online: 19 April 2017 © Springer Science+Business Media Dordrecht 2017 Abstract upregulated whereas for several genes involved in primary Key message Gene expression studies in roots of apple metabolism lower expression was detected. For internal replant disease affected plants suggested defense reac‑ verification of MACE data, candidate genes were tested tions towards biotic stress to occur which did not lead to via RT-qPCR and a strong positive correlation between adequate responses to the biotic stressors. both datasets was observed. Comparison of apple ‘M26’ Abstract Apple replant disease (ARD) leads to growth roots cultivated in ARD soil or γ-irradiated ARD soil sug- inhibition and fruit yield reduction in replanted populations gests that typical defense reactions towards biotic stress and results in economic losses for tree nurseries and fruit take place in ARD affected plants but they did not allow producers. The etiology is not well understood on a molec- responding to the biotic stressors attack adequately, leading ular level and causal
Plant Molecular Biology – Springer Journals
Published: Apr 19, 2017
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