<i>Phytophthora pini</i>Leonian resurrected to distinct species status

Hong, Chuanxue; Gallegly, M. E.; Richardson, Patricia A.; Kong, Ping

doi:10.3852/10-058

Cited by 61 publications

(52 citation statements)

References 29 publications

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“…Generally, variation in the ITS sequence between closely related species in other Phytophthora clades is much smaller than that illustrated among clade-10 species. There are even fewer than 10 nucleotide differences in ITS sequence among species in some phylogenetic groups that have shown recent speciation and radiation, such as subclades 1c and 6b (Cooke et al, 2000;Jung et al, 2011), as well as the high-temperature-tolerant cluster of clade 9 (Yang et al, 2014a, b; and the 'Phytophthora citricola complex' of clade 2 (Hong et al, 2011;Jung & Burgess, 2009). The genetic variation implicates an earlier divergence within clade-10 species than in other Phytophthora clades.…”

Section: Discussionmentioning

confidence: 99%

A unique species in Phytophthora clade 10, Phytophthora intercalaris sp. nov., recovered from stream and irrigation water in the eastern USA

Yang

Balcì

Brazee

et al. 2016

International Journal of Systematic and Evolutionary Microbiology

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Section: Discussionmentioning

confidence: 99%

A unique species in Phytophthora clade 10, Phytophthora intercalaris sp. nov., recovered from stream and irrigation water in the eastern USA

Yang

Balcì

Brazee

et al. 2016

International Journal of Systematic and Evolutionary Microbiology

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“…The remaining phylotype belongs to a complex of species in Clade 2 that cannot be separated from other species in the clade (namely P. acerina, P. plurivora and P. pini) on the basis of the ITS1 gene region. P. plurivora is common in Europe Schoebel et al 2014), P. pini is common in North America (Hong et al 2011) and P. acerina to date has only been recovered from Italy (Ginetti et al2014). To date, the only species in this complex isolated in Australia is P. plurivora (from NSW).…”

Section: Phytophthora Species Detected Within Australiamentioning

confidence: 99%

Distribution and diversity of Phytophthora across Australia

Burgess

White

McDougall

et al. 2017

Pac. Conserv. Biol.

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The introduction and subsequent impact of Phytophthora cinnamomi within native vegetation is one of the major conservation issues for biodiversity in Australia. Recently, many new Phytophthora species have been described from Australia's native ecosystems; however, their distribution, origin, and potential impact remain unknown. Historical bias in Phytophthora detection has been towards sites showing symptoms of disease, and traditional isolation methods show variable effectiveness of detecting different Phytophthora species. However, we now have at our disposal new techniques based on the sampling of environmental DNA and metabarcoding through the use of highthroughput sequencing. Here, we report on the diversity and distribution of Phytophthora in Australia using metabarcoding of 640 soil samples and we compare the diversity detected using this technique with that available in curated databases. Phytophthora was detected in 65% of sites, and phylogenetic analysis revealed 68 distinct Phytophthora phylotypes. Of these, 21 were identified as potentially unique taxa and 25 were new detections in natural areas and/or new introductions to Australia. There are 66 Phytophthora taxa listed in Australian databases, 43 of which were also detected in this metabarcoding study. This study revealed high Phytophthora richness within native vegetation and the additional records provide a valuable baseline resource for future studies. Many of the Phytophthora species now uncovered in Australia's native ecosystems are newly described and until more is known we need to be cautious with regard to the spread and conservation management of these new species in Australia's unique ecosystems.

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“…found in the United States, P. cinnamomi and P. plurivora are the most widespread (Bienapfl and Balci 2014;McConnell and Balci 2014). P. plurivora is one of eight species once considered part of the P. citricola complex (now delineated into P. capensis, P. caryae, P. citricola, P. pachypleura, P. pini, P. plurivora, P. multivora, and P. acerina) (Bezuidenhout et al 2010, Brazee et al in press, Ginetti et al 2014Henricot et al 2014;Hong et al 2011;Jung and Burgess 2009;Scott et al 2009). Although both species have a worldwide distribution, P. plurivora is potentially of Asian origin and introduced to North America from Europe (Huai et al 2013;Jung and Burgess 2009;Jung et al 2017;Schoebel et al 2014).…”

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confidence: 99%

Genotypic Diversity of Phytophthora cinnamomi and P. plurivora in Maryland’s Nurseries and Mid-Atlantic Forests

2017

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Genetic diversity of two Phytophthora spp.-P. cinnamomi (102 isolates), commonly encountered in Maryland nurseries and forests in the MidAtlantic United States, and P. plurivora (186 isolates), a species common in nurseries-was characterized using amplified fragment length polymorphism. Expected heterozygosity and other indices suggested a lower level of diversity among P. cinnamomi than P. plurivora isolates. Hierarchical clustering showed P. cinnamomi isolates separated into four clusters, and two of the largest clusters were closely related, containing 80% of the isolates. In contrast, P. plurivora isolates separated into six clusters, one of which included approximately 40% of the isolates. P. plurivora isolates recovered from the environment (e.g., soil and water) were genotypically more diverse than those found causing lesions. For both species, isolate origin (forest versus nursery or among nurseries) was a significant factor of heterozygosity. Clonal groups existed within P. cinnamomi and P. plurivora and included isolates from both forest and nurseries, suggesting that a pathway from nurseries to forests or vice versa exists.The genus Phytophthora includes numerous species that are among the most significant plant pathogens worldwide. As a result, the genus has been the focus of many population biology studies (Bhat and Browne

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Phytophthora piniLeonian resurrected to distinct species status

Cited by 61 publications

References 29 publications

A unique species in Phytophthora clade 10, Phytophthora intercalaris sp. nov., recovered from stream and irrigation water in the eastern USA

A unique species in Phytophthora clade 10, Phytophthora intercalaris sp. nov., recovered from stream and irrigation water in the eastern USA

Distribution and diversity of Phytophthora across Australia

Genotypic Diversity of Phytophthora cinnamomi and P. plurivora in Maryland’s Nurseries and Mid-Atlantic Forests

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