01773nas a2200193 4500008004100000022001300041245009900054210006900153260001600222300001400238490000700252520116000259100001901419700001601438700002501454700001901479700001501498856006601513 2004 eng d a1087184500aPhylogenetic analysis of Phytophthora species based on mitochondrial and nuclear DNA sequences0 aPhylogenetic analysis of Phytophthora species based on mitochond cJan-08-2004 a766 - 7820 v413 a

A molecular phylogenetic analysis of the genus Phytophthora was performed, 113 isolates from 48 Phytophthora species were included in this analysis. Phylogenetic analyses were performed on regions of mitochondrial (cytochrome c oxidase subunit 1; NADH dehydrogenase subunit 1) and nuclear gene sequences (translation elongation factor 1α; β-tubulin) and comparisons made to test for incongruence between the mitochondrial and nuclear data sets. The genus Phytophthora was confirmed to be monophyletic. In addition, results confirm that the classical taxonomic grouping as described by [Waterhouse (1963)] does not reflect true phylogenetic relations. Phytophthora species were redistributed into 8 clades, providing a more accurate representation of phylogenetic relationships within the genus Phytophthora. The evolution and transition of morphological, pathogenic, and reproductive traits was inferred from the cladogram generated in this study. Mating system was inferred to be a homoplasious trait, with at least eight independent transitions from homothallism to heterothallism observed.

1 aKroon, L.P.N.M1 aBakker, F.T1 avan den Bosch, G.B.M1 aBonants, P.J.M1 aFlier, W.G uhttp://linkinghub.elsevier.com/retrieve/pii/S1087184504000611