RT Journal Article
T1 Phylogenetic relationships among plant and animal parasites, and saprotrophs in Aphanomyces (Oomycetes)
A1 Diéguez Uribeondo, Javier
A1 García, Miguel Ángel
A1 Cerenius, Lage
A1 Kozubíková, Eva
A1 Ballesteros Redondo, María Isabel
A1 Windels, Carol
A1 Weiland, John
A1 Kator, Howard
A1 Söderhäll, Kenneth
A1 Martín, María Paz
AB Molecular phylogenetic relationships among 12 species of Aphanomyces de Bary (Oomycetes) were analyzed based on 108 ITS sequences of nuclear rDNA. Sequences used in the analyses belonged to the major species currently available in pure culture and GenBank. Bayesian, maximum likelihood, and maximum parsimony analyses support that Aphanomyces constitutes a monophyletic group. Three independent lineages were found: (i) plant parasitic, (ii) animal parasitic, and (iii) saprotrophic or opportunistic parasitic. Sexual reproduction appeared to be critical in plant parasites for survival in soil environments while asexual reproduction seemed to be advantageous for exploiting specialization in animal parasitism. Repeated zoospore emergence seems to be an advantageous property for both plant and animal parasitic modes of life. Growth in unspecific media was generally faster in saprotrophs compared with parasitic species. A number of strains and GenBank sequences were found to be misidentified. It was confirmed molecularly that Aphanomyces piscicida and Aphanomyces invadans appear to be conspecific, and found that Aphanomyces iridis and Aphanomyces euteiches are closely related, if not the same, species. This study has shown a clear evolutionary separation between Aphanomyces species that are plant parasites and those that parasitize animals. Saprotrophic or opportunistic species formed a separate evolutionary lineage except Aphanomyces stellatus whose evolutionary position has not yet been resolved.
PB Elsevier
SN 1087-1845
YR 2009
FD 2009
LK https://hdl.handle.net/20.500.14352/91885
UL https://hdl.handle.net/20.500.14352/91885
LA eng
NO Diéguez-Uribeondo, Javier, et al. «Phylogenetic Relationships among Plant and Animal Parasites, and Saprotrophs in Aphanomyces (Oomycetes)». Fungal Genetics and Biology, vol. 46, n.o 5, mayo de 2009, pp. 365-76. https://doi.org/10.1016/j.fgb.2009.02.004.
NO European Commission
NO Ministerio de Educación y Ciencia (España)
NO Centro Superior de Investigaciones Científicas 
NO Ministry of Education (Czech Republic)
DS Docta Complutense
RD 10 abr 2025