Diversity in and evidence for selection on the mitochondrial genome of<i>Phytophthora infestans</i>

Gavino, Pia D.; Fry, William E.

doi:10.1080/15572536.2003.11833172

Cited by 21 publications

(5 citation statements)

References 31 publications

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“…On the other hand, the low level of polymorphism in the M. graminicola mtDNAs may have been generated through fixation of an advantageous mt mutation during a selective sweep. The selection of a favored mt haplotype leading to low levels of polymorphism was suggested in the oomycete Phytophthora infestans (Gavino and Fry, 2002).…”

Section: Discussionmentioning

confidence: 99%

Intraspecific comparison and annotation of two complete mitochondrial genome sequences from the plant pathogenic fungus Mycosphaerella graminicola

Torriani¹,

Goodwin²,

Kema³

et al. 2008

Fungal Genetics and Biology

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Section: Discussionmentioning

confidence: 99%

Intraspecific comparison and annotation of two complete mitochondrial genome sequences from the plant pathogenic fungus Mycosphaerella graminicola

Torriani¹,

Goodwin²,

Kema³

et al. 2008

Fungal Genetics and Biology

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“…The majority of population genetic studies in fungal pathogens to date have focused on population genetic structure (e.g., Douhan et al, 2002;Gavino and Fry, 2002;Sampaio et al, 2003) as a starting point to elucidate the interactions among mutation, migration, drift, mating system, and selection. Though the theoretical consequences of each evolutionary force on population genetic dynamics are well understood, the magnitudes and relative contributions of these evolutionary forces have rarely been quantified and validated empirically and comprehensively within the same pathogen species.…”

Section: Introductionmentioning

confidence: 99%

The interaction among evolutionary forces in the pathogenic fungus Mycosphaerella graminicola

Zhan

McDonald

2004

Fungal Genetics and Biology

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“…Isolate 1045 differed from the EC-1 at one RFLP locus. Based on previous practice (13,16,18), clonal lineages were determined by DNA fingerprint, mitochondrial haplotype, mating type, and isozyme patterns. Isolates that differed from the dominant lineage in only one RFLP band were considered to be a derivative of that lineage.…”

Section: Resultsmentioning

confidence: 99%

“…Previously, only A1 mating types had been detected (13,16). It is not known if the current population is complex or simple and, if complex, the cause for the complexity is unknown.…”

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confidence: 94%

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Characterization of Phytophthora infestans Populations in Colombia: First Report of the A2 Mating Type

Vargas¹,

Quesada‐Ocampo²,

Céspedes³

et al. 2009

Phytopathology®

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Phytophthora infestans, the causal agent of late blight in crops of the Solanaceae family, is one of the most important plant pathogens in Colombia. Not only are Solanum lycopersicum, and S. tuberosum at risk, but also several other solanaceous hosts (Physalis peruviana, S. betaceum, S. phureja, and S. quitoense) that have recently gained importance as new crops in Colombia may be at risk. Because little is known about the population structure of Phytophthora infestans in Colombia, we report here the phenotypic and molecular characterization of 97 isolates collected from these six different solanaceous plants in Colombia. All the isolates were analyzed for mating type, mitochondrial haplotypes, genotype for several microsatellites, and sequence of the internal transcribed spacer (ITS) region. This characterization identified a single individual of A2 mating type (from Physalis peruviana) for the first time in Colombia. All isolates had an ITS sequence that was at least 97% identical to the consensus sequence. Of the 97 isolates, 96 were mitochondrial haplotype IIa, with the single A2 isolate being Ia. All isolates were invariant for the microsatellites. Additionally, isolates collected from S. tuberosum and P. peruviana (64 isolates) were tested for: aggressiveness on both hosts, genotype for the isozymes (glucose-6-phosphate isomerase and peptidase), and restriction fragment length polymorphism fingerprint pattern as detected by RG57. Isolates from S. tuberosum were preferentially pathogenic on S. tuberosum, and isolates from P. peruviana were preferentially pathogenic on P. peruviana. The population from these two hosts was dominated by a single clonal lineage (59 of 64 individuals assayed), previously identified from Ecuador and Peru as EC-1. This lineage was mating type A1, IIa for mitochondrial DNA, invariant for two microsatellites, and invariant for both isozymes. The remaining four A1 isolates were in lineages very closely related to EC-1 (named EC-1.1, CO-1, and CO-2). The remaining lineage (the A2 mating type) had characteristics of the US-8 lineage (previously identified in Mexico, the United States, and Canada). These results have important epidemiological implications for the production of these two crops in Colombia.

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Diversity in and evidence for selection on the mitochondrial genome ofPhytophthora infestans

Cited by 21 publications

References 31 publications

Intraspecific comparison and annotation of two complete mitochondrial genome sequences from the plant pathogenic fungus Mycosphaerella graminicola

Intraspecific comparison and annotation of two complete mitochondrial genome sequences from the plant pathogenic fungus Mycosphaerella graminicola

The interaction among evolutionary forces in the pathogenic fungus Mycosphaerella graminicola

Characterization of Phytophthora infestans Populations in Colombia: First Report of the A2 Mating Type

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