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 404150
Title Horizontal gene and chromosome transfer in plantpathogenic fungi affecting host range
Author(s) Mehrabi, R.; Bahkali, A.H.; Abd-Elsalam, K.A.; M'Barek, S. Ben; Mirzadi Gohari, A.; Karimi Jashini, M.; Stergiopoulos, I.; Kema, G.H.J.; Wit, P.J.G.M. de
Source FEMS Microbiology Reviews 35 (2011)3. - ISSN 0168-6445 - p. 542 - 554.
Department(s) Laboratory of Phytopathology
Biointeracties and Plant Health
PRI BIOINT Moleculair Phytopathology
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) conidial anastomosis tubes - japanese pear pathotype - polyketide t-toxin - alternaria-alternata - nectria-haematococca - cochliobolus-heterostrophus - fusarium-oxysporum - neurospora-crassa - hyphal fusion - colletotrichum-gloeosporioides
Abstract Plant pathogenic fungi adapt quickly to changing environments including overcoming plant disease resistance genes. This is usually achieved by mutations in single effector genes of the pathogens, enabling them to avoid recognition by the host plant. In addition, horizontal gene transfer (HGT) and horizontal chromosome transfer (HCT) provide a means for pathogens to broaden their host range. Recently, several reports have appeared in the literature on HGT, HCT and hybridization between plant pathogenic fungi that affect their host range, including species of Stagonospora/Pyrenophora, Fusarium and Alternaria. Evidence is given that HGT of the ToxA gene from Stagonospora nodorum to Pyrenophora tritici-repentis enabled the latter fungus to cause a serious disease in wheat. A nonpathogenic Fusarium species can become pathogenic on tomato by HCT of a pathogenicity chromosome from Fusarium oxysporum f.sp lycopersici, a wellknown pathogen of tomato. Similarly, Alternaria species can broaden their host range by HCT of a single chromosome carrying a cluster of genes encoding hostspecific toxins that enabled them to become pathogenic on new hosts such as apple, Japanese pear, strawberry and tomato, respectively. The mechanisms HGT and HCT and their impact on potential emergence of fungal plant pathogens adapted to new host plants will be discussed
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