Conspecificity of Endothia eugeniae and Cryphonectria cubensis: a re-evaluation based on morphology and DNA sequence data

Myburg, Henrietta; Wingfield, Brenda D.; Wingfield, Michael J.; Gryzenhout, Marieka

doi:10.1007/s10267-003-0101-8

Cited by 33 publications

(38 citation statements)

References 22 publications

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“…Countries where the identity has been confirmed based on DNA sequence comparisons: U.S.A. (Hawaii), Tanzania (Zanzibar), Kenya, Malawi, Mozambique, Indonesia, Singapore, Thailand, China (Hong Kong-ITS only), Australia (Myburg et al 1999a;Myburg et al 2003;Roux et al 2003;Gryzenhout et al 2004;Gryzenhout et al 2006b;Nakabonge et al 2006). Isolates from Vietnam, although previously reported as C. cubensis (Old et al 2003), are also shown for the first time to represent C. deuterocubensis based on DNA sequence data.…”

Section: Distributionmentioning

confidence: 99%

“…Previous phylogenetic studies based on the rRNA internal transcribed spacer (ITS) regions, β-tubulin and histone H3 genes have consistently separated C. cubensis into two well-supported clades (Myburg et al 1999b;Myburg et al 2002;Myburg et al 2003;Gryzenhout et al 2004;Myburg et al 2004;Gryzenhout et al 2006a;Gryzenhout et al 2006c). One of these, referred to as the South American clade, accommodates isolates from countries in South and Central America, as well as likely introductions into western African countries such as Cameroon, Congo and the Democratic Republic of the Congo (Myburg et al 2002;Myburg et al 2003;Roux et al 2003;Gryzenhout et al 2006b).…”

Section: Introductionmentioning

confidence: 99%

“…One of these, referred to as the South American clade, accommodates isolates from countries in South and Central America, as well as likely introductions into western African countries such as Cameroon, Congo and the Democratic Republic of the Congo (Myburg et al 2002;Myburg et al 2003;Roux et al 2003;Gryzenhout et al 2006b). The second clade accommodates isolates from Southeast Asian countries such as Indonesia and Thailand, as well as likely introductions into Australia, China, Hawaii (Myburg et al 2002;Myburg et al 2003;Gryzenhout et al 2006b), and several countries in Eastern Africa Gryzenhout et al 2006b;Nakabonge et al 2006). Although isolates in these clades have distinct and nonoverlapping geographic distributions , they all include native hosts in the Melastomataceae.…”

Section: Introductionmentioning

confidence: 99%

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Multigene phylogenetic and population differentiation data confirm the existence of a cryptic species within Chrysoporthe cubensis

et al. 2010

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Chrysoporthe cubensis is one of the most important pathogens of Eucalyptus. Based on phylogenetic evidence and geographic origin, isolates of this fungus are known to reside in distinct 'South America' and 'Southeast Asia' clades. In this study, reproductive isolation amongst these isolates of C. cubensis was tested using gene flow statistics for 12 polymorphic loci, and to support these data, phylogenetic affiliations based on gene trees and a multigene phylogeny were used. Gene flow statistics between populations, and relative to the closely related Chrysoporthe austroafricana, were low and not significantly different (P < 0.05). Additionally, phylogenetic analyses of DNA sequence data for four gene regions convincingly distinguished the two subclades of C. cubensis. Isolates in the Southeast Asian subclade are described in the new species, Chrysoporthe deuterocubensis. Chrysoporthe cubensis and C. deuterocubensis represent closely related fungi that are thought to be native to South America and Southeast Asia, respectively. A technique is presented that allows for rapid differentiation between these species and that will aid in quarantine procedures to limit their spread to new environments.

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Section: Distributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Multigene phylogenetic and population differentiation data confirm the existence of a cryptic species within Chrysoporthe cubensis

et al. 2010

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“…: Britton (Melastomataceae, Mytales) (Nakabonge et al 2006a, Vermeulen et al 2011. Celoporthe indonesiensis infects S. aromaticum (L.) Merr & Perry in Indonesia (Myburg et al 2003, Chen et al 2011, while the Chinese species C. eucalypti and C. guangdongensis were collected from non-native Eucalyptus species and C. syzygii is known from non-native S. cumini (L.) Skeels (Chen et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Species delineation in the tree pathogen genusCeloporthe(Cryphonectriaceae) in southern Africa

Vermeulen

Gryzenhout

Wingfield³

et al. 2013

Mycologia

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The genus Celoporthe was first described when C. dispersa was discovered in South Africa associated with dieback and cankers on trees in the Myrtales. Four additional species were recently described from Eucalyptus and Syzygium cumini in China as well as S. aromaticum and Eucalyptus in Indonesia. Inoculation trials have shown that all Celoporthe species, including those that have not been found on Eucalyptus species in nature, are pathogenic to Eucalyptus and they are thus potentially threatening to commercial Eucalyptus forestry. New isolates, morphologically similar to Celoporthe, have been collected from S. legatti in South Africa and S. guineense in Zambia. Multigene phylogenetic analyses based on DNA sequences of the ITS region, TEF1a gene and two areas of the b-tubulin gene revealed additional cryptic species in Celoporthe. Phylogenetic data were supported by morphological differences. These resulted in the description of two previously unknown species of Celoporthe, namely C. fontana and C. woodiana, for two of these cryptic groups, while the third group represented C. dispersa. These species all can readily infect Eucalyptus as well as several species of Syzygium, the latter of which are native to Africa.

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“…This rust disease is native on Myrtaceae in South and Central America and has adapted to infect Eucalyptus in that region (Coutinho et al 1998, Glen et al 2007). In addition, there are many recent examples of members of the Cryphonectriaceae, that are native on members of the Myrtales, adapted to infect Eucalyptus in Africa (Heath et al 2006) as well as South and Central America and Asia Hodges et al 1986;Myburg et al 2003;Rodas et al 2005). …”

Section: A Diverse Group Of Mycosphaerellaceae and Teratosphaeriaceaementioning

confidence: 99%

Species of Mycosphaerellaceae and Teratosphaeriaceae on native Myrtaceae in Uruguay: evidence of fungal host jumps

et al. 2013

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Mycosphaerella species are well-known causal agents of leaf diseases on many economically and ecologically important plant species. In Uruguay, a relatively large number of Mycosphaerellaceae and Teratosphaeriaceae are found on Eucalyptus, but nothing is known of these fungi on native Myrtaceae. The aim of this study was to identify Mycosphaerellaceae and Teratosphaeriaceae species associated with leaf diseases on native Myrtaceae in Uruguay and to consider whether host jumps by the pathogen from introduced Eucalyptus to native Myrtaceae have occurred.Several native forests throughout the country were surveyed with special attention given to those located close to Eucalyptus plantations. Five species belonging to the Mycosphaerellaceae and Teratosphaeriaceae clades were found on native Myrtaceous trees and three of these had previously been reported on Eucalyptus in Uruguay. Those occurring both on Eucalyptus and native Myrtaceae included Pallidocercospora heimii, Pseudocercospora norchiensis andTeratosphaeria aurantia. In addition, Mycosphaerella yunnanensis, a species known to occur on Eucalyptus but not previously recorded in Uruguay, was found on leaves of two native Myrtaceous hosts. Because most of these species occur on Eucalyptus in countries other than Uruguay, it appears that they were introduced in this country and have adapted to be able to infect native Myrtaceae. These apparent host jumps have the potential to result in serious disease problems and they should be carefully monitored.

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Conspecificity of Endothia eugeniae and Cryphonectria cubensis: a re-evaluation based on morphology and DNA sequence data

Cited by 33 publications

References 22 publications

Multigene phylogenetic and population differentiation data confirm the existence of a cryptic species within Chrysoporthe cubensis

Multigene phylogenetic and population differentiation data confirm the existence of a cryptic species within Chrysoporthe cubensis

Species delineation in the tree pathogen genusCeloporthe(Cryphonectriaceae) in southern Africa

Species of Mycosphaerellaceae and Teratosphaeriaceae on native Myrtaceae in Uruguay: evidence of fungal host jumps

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