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Six new Phytophthora species from ITS Clade 7a including two sexually functional heterothallic hybrid species detected in natural ecosystems in Taiwan

2017-06Journal article Restricted
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dc.contributor.authorJung, Thomas
dc.contributor.authorHorta, Marília
dc.contributor.authorScanu, B.
dc.contributor.authorSeress, D.
dc.contributor.authorKovacs, G. M.
dc.contributor.authorMaia, Cristiana
dc.contributor.authorPerez-Sierra, A.
dc.contributor.authorChang, T. -T.
dc.contributor.authorChandelier, A.
dc.contributor.authorHeungens, K.
dc.contributor.authorvan Poucke, K.
dc.contributor.authorAbad-Campos, P.
dc.contributor.authorLeon, M.
dc.contributor.authorCacciola, S. O.
dc.contributor.authorBakonyi, J.
dc.date.accessioned2018-12-07T14:53:28Z
dc.date.available2018-12-07T14:53:28Z
dc.date.issued2017-06
dc.description.abstractDuring a survey of Phytophthora diversity in natural ecosystems in Taiwan six new species were detected. Multigene phylogeny based on the nuclear ITS, beta-tubulin and HSP90 and the mitochondrial cox1 and NADH1 gene sequences demonstrated that they belong to ITS Clade 7a with P. europaea, P. uniformis, P. rubi and P. cambivora being their closest relatives. All six new species differed from each other and from related species by a unique combination of morphological characters, the breeding system, cardinal temperatures and growth rates. Four homothallic species, P. attenuata, P. flexuosa, P. formosa and P. intricata, were isolated from rhizosphere soil of healthy forests of Fagus hayatae, Quercus glandulifera, Q. tarokoensis, Castanopsis carlesii, Chamaecyparis formosensis and Araucaria cunninghamii. Two heterothallic species, P. xheterohybrida and P. xincrassata, were exclusively detected in three forest streams. All P. xincrassata isolates belonged to the A2 mating type while isolates of P. xheterohybrida represented both mating types with oospore abortion rates according to Mendelian ratios (4-33 %). Multiple heterozygous positions in their ITS, beta-tubulin and HSP90 gene sequences indicate that P. xheterohybrida, P. xincrassata and P. cambivora are interspecific hybrids. Consequently, P. cambivora is re-described as P. xcambivora without nomenclatural act. Pathogenicity trials on seedlings of Castanea sativa, Fagus sylvatica and Q. suber indicate that all six new species might pose a potential threat to European forests.
dc.description.sponsorshipPortuguese Science Foundation (FCT) [EXPL/AGR-FOR/1304/2012]; Hungarian Scientific Research Fund (OTKA) grant [K101914]
dc.identifier.doi10.3767/003158517X693615
dc.identifier.issn0031-5850
dc.identifier.urihttp://hdl.handle.net/10400.1/11529
dc.language.isoeng
dc.peerreviewedyes
dc.publisherRijksherbarium
dc.subjectPort-Orford-Cedar
dc.subjectWestern-Australia
dc.subjectSp Nov.
dc.subjectPhylogenetic analysis
dc.subjectMultilocus phylogeny
dc.subjectRiparian ecosystems
dc.subjectAlder phytophthoras
dc.subjectNorth-America
dc.subjectWoody hosts
dc.subjectDna markers
dc.titleSix new Phytophthora species from ITS Clade 7a including two sexually functional heterothallic hybrid species detected in natural ecosystems in Taiwan
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXPL%2FAGR-FOR%2F1304%2F2012/PT
oaire.citation.endPage135
oaire.citation.startPage100
oaire.citation.titlePersoonia -Leiden-
oaire.citation.volume38
oaire.fundingStream3599-PPCDT
person.familyNameJung
person.familyNameHorta Jung
person.familyNameMaia
person.givenNameThomas
person.givenNameMarília
person.givenNameCristiana
person.identifier.ciencia-id6A14-0727-EDCD
person.identifier.ciencia-idBC15-6F7F-F84A
person.identifier.orcid0000-0003-2034-0718
person.identifier.orcid0000-0003-2219-8647
person.identifier.orcid0000-0002-8654-2905
person.identifier.ridF-1665-2013
person.identifier.ridE-7624-2013
person.identifier.ridD-6946-2017
person.identifier.scopus-author-id7201389242
person.identifier.scopus-author-id16312454300
person.identifier.scopus-author-id56106673800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
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