Phylogenetic relationships of Pythium species based on ITS and 5.8S sequences of the ribosomal DNA
作者： Chieko Matsumoto , Koji Kageyama , Haruhisa Suga , Mitsuro Hyakumachi
DOI: 10.1007/BF02463876
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摘要: The sequences of ITS regions in 30 species and two groups the genusPythium were resolved. In phylogenetic trees, generally divided into clusters, referred to here as F S groups. correspond terms their sporangial morphology, with group being filamentous/lobulate spherical. Genetic divergence within was lower than that group. Other morphological characteristics such oogonial structure sexual nature appeared be unrelated groupings these trees. An alignment analysis revealed common all arrangements specific each or It found region a good target designing species-specific primers for identification detection ofPythium species. tree based on 5.8S rDNA sequences, oomycetes are distantly related other fungi but separated from algae Chromista.
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