Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 491280
Title Evolution of Hyaloperonospora effectors: ATR1 effector homologs from sister species of the downy mildew pathogen H. arabidopsidis are not recognised by RPP1WsB
Author(s) Solovyeva, I.; Schmuker, A.; Cano, L.M.; Damme, M. van; Ploch, S.; Kamoun, S.; Thines, M.
Source Mycological Progress 14 (2015). - ISSN 1617-416X - 9 p.
DOI https://doi.org/10.1007/s11557-015-1074-7
Department(s) Laboratory of Phytopathology
EPS-2
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) plant immune-system - phylogenetic-relationships - peronospora-parasitica - oomycete effector - resistance gene - proteins - sequences - thaliana - reveals - plasmopara
Abstract Like other plant-pathogenic oomycetes, downy mildew species of the genus Hyaloperonospora manipulate their hosts by secreting effector proteins. Despite intense research efforts devoted to deciphering the virulence and avirulence activities of effectors in the H. arabidopsidis/Arabidopsis thaliana pathosystem, there is only a single study in this pathosystem on the variation of effectors and resistance genes in natural populations, and the evolution of these effectors in the context of pathogen evolution is studied even less. In this work, the identification of A rabidopsis t haliana recognised (ATR)1-homologs is reported in two sister species of H. arabidopsidis, H. thlaspeos-perfoliati, and H. crispula, which are specialized on the host plants Microthlaspi perfoliatum and Reseda lutea, respectively. ATR1-diversity within these sister species of H. arabidopsidis was evaluated, and the ATR1-homologs from different isolates of H. thlaspeos-perfoliati and H. crispula were tested to see if they would be recognised by the previously characterised RPP1-WsB protein from A. thaliana. None of the effectors from the sister species was recognised, suggesting that due to the adaptation to altered or new targets after a host jump, features of variable effectors might vary to a degree that recognition of orthologous Avr-causing effectors is no longer effective and probably does not contribute to non-host immunity.
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