Kroon L P N M, Bakker F T, van den Bosch G B M, Bonants P J M, Flier W G
Plant Research International, P.O.Box 16, 6700 AA, Wageningen, The Netherlands.
Fungal Genet Biol. 2004 Aug;41(8):766-82. doi: 10.1016/j.fgb.2004.03.007.
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 1alpha; beta-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.
对疫霉属进行了分子系统发育分析，该分析纳入了来自48个疫霉物种的113个分离株。对线粒体区域（细胞色素c氧化酶亚基1；NADH脱氢酶亚基1）和核基因序列（翻译延伸因子1α；β-微管蛋白）进行了系统发育分析，并进行了比较以测试线粒体和核数据集之间的不一致性。疫霉属被确认为单系。此外，结果证实[沃特豪斯（1963年）]所描述的经典分类分组并不能反映真正的系统发育关系。疫霉物种被重新划分为8个分支，从而更准确地呈现了疫霉属内的系统发育关系。从本研究生成的分支图推断了形态、致病和生殖性状的进化与转变。交配系统被推断为一种趋同性状，观察到至少有八次从同宗配合到异宗配合的独立转变。
