AI Article Synopsis
- The study investigates the phylogeny of Auriculoscypha anacardiicola, a fungus associated with scale insects in India, using advanced genetic analyses on RNA sequences.
- The fungus has unique features such as simple septa and a distinctive pore plug that connects it to certain parasitic fungi, and its structural characteristics resemble those of the genus Septobasidium.
- The molecular findings challenge the classification of Auriculoscypha within the Platygloeales order, suggesting it should be placed in the Septobasidiales based on both structural and genetic evidence.
Article Abstract
The phylogeny of Auriculoscypha anacardiicola, an associate of scale insects in India, is investigated using subcellular characters and MP and Bayesian analyses of combined nuLSU-rDNA, nuSSU-rDNA and 5.8S rDNA sequence data. It has simple septa with a pulley-wheel-shaped pore plug, which is diagnostic of phytoparasitic members of the Pucciniomycetes, and hyphal wall break on branching, a phenomenon unique to some simple septate heterobasidiomycetes. The septal ultrastructure of A. anacardiicola is similar to that of the genus Septobasidium. The close relationship to Septobasidium is also confirmed by rDNA sequence analyses. The polyphyletic nature of the order Platygloeales, noted in earlier studies, is evident from the present molecular analysis as well. The placement of Auriculoscypha in the Platygloeales can no longer be justified and both ultrastructural and molecular evidence strongly support the placement of Auriculoscypha in the Septobasidiales.
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| http://dx.doi.org/10.1016/j.mycres.2006.12.003 | DOI Listing |
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