Morphological and molecular taxonomy of Jahnula dianchia sp. nov. (Jahnulales) from submerged wood in Dianchi Lake, Yunnan China

  • Shi-Ke Huang
  • Sajeewa S. N. Maharachchikumbura
  • Rajesh Jeewon
  • D. Jayarama Bhat
  • Putarak Chomnunti
  • Kevin D. Hyde
  • Saisamorn Lumyong
Original Article
  • 52 Downloads

Abstract

In this study, we report the discovery of Jahnula dianchia sp. nov., a freshwater lignicolous fungus belonging to the order Jahnulales (Dothideomycetes, Ascomycota), from a submerged woody substrate from Dianchi Lake, Yunnan, China. Morphologically, this new taxon differs from other species of the genus in ascospore morphology; the ascospores of the new species are dark brown with mammiform apices. We also provide a phylogenetic tree showing the molecular relationships between the new taxon with the previously accepted Jahnula species. The analysis of combined ITS, LSU, and SSU sequence dataset places J. dianchia within the Jahnulales sister to J. sangamonensis. The phylogeny also shows the placement of both strains of J. dianchia in a well-supported independent sub-clade.

Keywords

Aliquandostipitaceae Dothideomycetes Morphology New species Phylogeny 

Notes

Acknowledgements

We thank Kunming Institute of Botany, Chinese Academy of Sciences providing laboratory facilities for carrying out taxonomic work. Shi-Ke Huang is particularly grateful to Dr. Qi Zhao and Dr. Olivier Raspé for their invaluable suggestions in this paper. Drs. R. Jeewon and D.J. Bhat thank Mae Fah Luang University for the offer of a short term Visiting Professorship in 2016 and keynote speakers for the COEIC 2017 conference. K.D. Hyde is grateful for the position of adjunct Professor at Chiang Mai University.

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Copyright information

© German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Shi-Ke Huang
    • 1
    • 2
    • 3
  • Sajeewa S. N. Maharachchikumbura
    • 4
  • Rajesh Jeewon
    • 5
  • D. Jayarama Bhat
    • 6
    • 7
  • Putarak Chomnunti
    • 1
    • 2
  • Kevin D. Hyde
    • 1
    • 2
  • Saisamorn Lumyong
    • 8
  1. 1.Center of Excellence in Fungal ResearchMae Fah Luang UniversityChiang RaiThailand
  2. 2.School of ScienceMae Fah Luang UniversityChiang RaiThailand
  3. 3.Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of BotanyChinese Academy of SciencesKunmingPeople’s Republic of China
  4. 4.Department of Crop Sciences, College of Agricultural and Marine SciencesSultan Qaboos UniversityMuscatOman
  5. 5.Department of Health Sciences, Faculty of ScienceUniversity of MauritiusReduitMauritius
  6. 6.Azad Housing SocietyP.O. Goa VelhaIndia
  7. 7.Department of BotanyGoa UniversityTaleigãoIndia
  8. 8.Department of Biology Faculty of ScienceChiang Mai UniversityChiang MaiThailand

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