Dominance of Mating Type A1 and Indication of Epigenetic Effects During Early Stages of Mating in .

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ID: 102841
2020
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Abstract
The potato late blight pathogen has both an asexual and a sexual mode of reproduction. In Scandinavia, the pathogen is reproducing sexually on a regular basis, whereas clonal lineages dominate in other geographical regions. This study aimed at elucidating events or key genes underlying this difference in sexual behavior. First, the transcriptomes of eight strains, known as either clonal or sexual, were compared during early stages of mating. Principal component analysis (PCA) divided the samples in two clusters A and B and a clear grouping of the mating samples together with the A1 mating type parents was observed. Induction of genes encoding DNA adenine N6-methylation (6mA) methyl-transferases clearly showed a bias toward the cluster A. In contrast, the effector gene family was highly induced in most of the mating samples and was associated with cluster B in the PCA, similarly to genes coding for acetyl-transferases, which play an important role in RXLR modification prior to secretion. knock-down strains displayed a reduction in virulence and oospore formation, suggesting a role during the mating process. In conclusion, a number of gene candidates important for the reproductive processes were revealed. The results suggest a possible epigenetic influence and involvement of specific RXLR effectors in mating-related processes.
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tzelepis2020dominancefrontiers Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Tzelepis, Georgios;Hodén, Kristian Persson;Fogelqvist, Johan;Åsman, Anna K M;Vetukuri, Ramesh R;Dixelius, Christina;
Journal Frontiers in microbiology
Year 2020
DOI
10.3389/fmicb.2020.00252
URL
Keywords
epigenetics mating avrblb2 heterothallism ploidy

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