Journal
MYCOKEYS
Volume -, Issue 77, Pages 65-95Publisher
PENSOFT PUBLISHERS
DOI: 10.3897/mycokeys.77.59852
Keywords
Diaporthaceae; Diaporthales; phylogeny; taxonomy; 8 new taxa
Categories
Funding
- National Natural Science Foundation of China [31770016, 31750001, 31900014]
- China Postdoctoral Science Foundation [2018M632699]
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This study identified eight new species and two previously described species of Diaporthe from leaf spots of twelve host plants in tropical rain forests of Yunnan Province, China, suggesting a high species diversity of Diaporthe in this region.
Diaporthe species have often been reported as plant pathogens, endophytes and saprophytes, commonly isolated from a wide range of infected plant hosts. In the present study, twenty strains obtained from leaf spots of twelve host plants in Yunnan Province of China were isolated. Based on a combination of morphology, culture characteristics and multilocus sequence analysis of the rDNA internal transcribed spacer region (ITS), translation elongation factor 1-alpha (TEF), beta-tubulin (TUB), calmodulin (CAL), and histone (HIS) genes, these strains were identified as eight new species: Diaporthe camelliae-sinensis, D. grandiflori, D. heliconiae, D. heterostemmatis, D. litchii, D. lutescens, D. melastomatis, D. pungensis and two previously described species, D. subclavata and D. tectonendophytica. This study showed high species diversity of Diaporthe in tropical rain forests and its hosts in south-western China.
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