Increased Genotypic Diversity via Migration and Possible Occurrence of Sexual Reproduction of<i>Phytophthora infestans</i>in Poland

Sujkowski, L. S.; Goodwin, Stephen B.; Dyer, A. T.; Fry, William E.

doi:10.1094/phyto-84-201

Cited by 137 publications

(86 citation statements)

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“…But we do not know exactly since when the A2 mating type strain was present in Czech pathogen populations, because regular monitoring of both mating types had begun in 1994 (HAUSVATER & RASOCHA 1999) (BAKONYI et al 2002). Studies from Poland also confirmed the presence of new P. infestans populations composed of both mating types (SUJKOWSKI et al 1994). A2 mating type was determined in Austria in the 1990s (RAUSCHER 2003) and in Slovakia (FORIŠEKOVÁ, personal communication, unpublished data).…”

Section: Discussionmentioning

confidence: 76%

Occurrence and distribution of mating types A1 and A2 of Phytophthora infestans (Mont.) de Bary in the Czech Republic

Mazáková¹,

Táborský²,

Zouhar³

et al. 2006

Plant Prot. Sci.

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MAZÁKOVÁ J., TÁBORSKÝ V., ZOUHAR M., RYŠÁNEK P., HAUSVATER E., DOLEŽAL P. They were analysed for mating type using the conventional pairing assay and PCR markers; 107 isolates were of A1 and 92 of A2 mating type. No self-fertile isolate was found. Our study is the first report of the presence and distribution of the A2 mating type of P. infestans in the Czech Republic. The co-existence of the two mating types may enable the pathogen to reproduce sexually, thus enhancing the diversity of its population countrywide.

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Section: Discussionmentioning

confidence: 76%

Occurrence and distribution of mating types A1 and A2 of Phytophthora infestans (Mont.) de Bary in the Czech Republic

Mazáková¹,

Táborský²,

Zouhar³

et al. 2006

Plant Prot. Sci.

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“…The introduction of the A2 mating type into Europe resulted in a shift from low to high nuclear genetic diversity in the Netherlands, particularly in places where both mating types were found together, mirroring the diversity found in central Mexico (18,(20)(21)(22). Greater diversity in a place may be due to a particular history of founder effects, extinctions, and expansions of local populations.…”

mentioning

confidence: 99%

An Andean origin of Phytophthora infestans inferred from mitochondrial and nuclear gene genealogies

Gómez-Alpízar

Carbone

Ristaino

2007

Proc. Natl. Acad. Sci. U.S.A.

138

113

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Phytophthora infestans (Mont.) de Bary caused the 19th century Irish Potato Famine. We assessed the genealogical history of P. infestans using sequences from portions of two nuclear genes (␤-tubulin and Ras) and several mitochondrial loci P3, (rpl14, rpl5, tRNA) and P4 (Cox1) from 94 isolates from South, Central, and North America, as well as Ireland. Summary statistics, migration analyses and the genealogy of current populations of P. infestans for both nuclear and mitochondrial loci are consistent with an ''out of South America'' origin for P. infestans. Mexican populations of P. infestans from the putative center of origin in Toluca Mexico harbored less nucleotide and haplotype diversity than Andean populations. Coalescent-based genealogies of all loci were congruent and demonstrate the existence of two lineages leading to present day haplotypes of P. infestans on potatoes. The oldest lineage associated with isolates from the section Anarrhichomenun including Solanum tetrapetalum from Ecuador was identified as Phytophthora andina and evolved from a common ancestor of P. infestans. Nuclear and mitochondrial haplotypes found in Toluca Mexico were derived from only one of the two lineages, whereas haplotypes from Andean populations in Peru and Ecuador were derived from both lineages. Haplotypes found in populations from the U.S. and Ireland was derived from both ancestral lineages that occur in South America suggesting a common ancestry among these populations. The geographic distribution of mutations on the rooted gene genealogies demonstrate that the oldest mutations in P. infestans originated in South America and are consistent with a South American origin.late blight ͉ oomycetes ͉ phylogeography ͉ Solanum tuberosum ͉ stamenopiles

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“…There is now good évi-dence for sexual reproduction of the new génotypes in Poland (Sujkowski et al 1994) and the Netherlands (Drenth et al 1994(Drenth et al , 1995. The sexual cycle gén-érâtes an additional source of inoculum as oospores that could provide a huge advantage compared to asexual reproduction alone.…”

Section: Mechanisms Of Higher Fitness In New Populationsmentioning

confidence: 99%

Molecular tracking new migrations of an old pathogen : the re-emergence of potato late blight

Goodwin

1999

Phytoprotection

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Increased Genotypic Diversity via Migration and Possible Occurrence of Sexual Reproduction ofPhytophthora infestansin Poland

Cited by 137 publications

References 0 publications

Occurrence and distribution of mating types A1 and A2 of Phytophthora infestans (Mont.) de Bary in the Czech Republic

Occurrence and distribution of mating types A1 and A2 of Phytophthora infestans (Mont.) de Bary in the Czech Republic

An Andean origin of Phytophthora infestans inferred from mitochondrial and nuclear gene genealogies

Molecular tracking new migrations of an old pathogen : the re-emergence of potato late blight

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