ORIGINAL ARTICLE
 
KEYWORDS
ABSTRACT
Stigmatodiscus touroultii (Stigmatodiscaceae, Stigmatodiscales) is described and illustrated from corticated dead twigs of Salvadora angustifolia collected in Juan de Nova (Scattered Islands, Mozambique Channel). It is characterized by the irregularly shaped pruinose hymenial disc without distinct black marginal lips and a calcium oxalate crystal layer in the epithecium. Phylogenetic analyses of a multigene matrix containing a representative selection of Dothideomycetes from four genes (nucSSU-ITS-LSU rDNA, RPB2, TEF1 and TUB2) revealed a highly supported placement within Stigmatodiscus as sister species to Stigmatodiscus oculatus. Micromorphology of the sexual and asexual morph matches the genus Stigmatodiscus. A key to all known species worldwide is provided.
FUNDING
Species studied in this paper were collected in the frame of the ‘Scattered Island’ inter-agency research consortium (2017–2021) coordinated by the French Southern and Antarctic Lands (TAAF) in partnership with: Centre National de la Recherche Scientifique, Institut de Recherche pour le Développement, Ifremer, Office Français de la Biodiversité, Université de La Réunion & Université de Mayotte. Fieldwork was funded by the inter-agency research consortium and was done jointly by the Conservatoire Botanique National de Mascarin, the Missouri Botanical Garden and the Muséum National d’Histoire Naturelle (UMS 2006 PatriNat OFB – CNRS – MNHN) in the frame of the RECOFFIE (Renforcement des COnnaissances sur la Flore et la Fonge des Iles Éparses) project, implemented as part of the ‘Scattered Island’ inter-agency research consortium (2017–2021). Species sequencing was funded by the University of Vienna, Department of Botany and Biodiversity Research.
 
REFERENCES (19)
1.
Beck, H. E., Zimmerman, N. E., McVicar, T. R., Vergopolan, N., Berg, A. & Wood, E. F. 2018. Present and future Köppen-Geiger climate classification maps at 1-km resolution. Scientific Data 5: 180–214. https://doi.org/10.1038/sdata.....
 
2.
Edler, D., Klein, J., Antonelli, A. & Silvestro, D. 2021. raxmlGUI 2.0: A graphical interface and toolkit for phylogenetic analyses using RAxML. Methods in Ecology and Evolution 12: 373–377. https://doi.org/10.1111/2041-2....
 
3.
Ferron, S., Berry, O., Olivier-Jimenez, D., Rouaud, I., Boustie, J., Lohezic-Le Dévéhat, F. & Poncet, R. 2020. Chemical diversity of five coastal Roccella species from mainland France, the Scattered Islands, and São Tomé and Príncipe. Plant and Fungal Systematics 65(2): 247–260. https://doi.org/10.35535/pfsys....
 
4.
Hall, T. A. 1999. BioEdit: a user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucleic Acids Symposium Series 41: 95–98.
 
5.
Mapook, A., Hyde, K. D., Hongsanan, S., Phukhamsakda, C., Li, J. F. & Boonme, S. 2016. Palawaniaceae fam. nov., a new family (Dothideomycetes, Ascomycota) to accommodate Palawania species and their evolutionary time estimates. Mycosphere 7: 1732–1745. https://doi.org/10.5943/MYCOSP....
 
6.
Nelsen, M. P., Lücking, R., Grube, M., Mbatchou, J. S., Muggia, L., Rivas Plata, E. & Lumbsch, H. T. 2009. Unravelling the phylogenetic relationships of lichenised fungi in Dothideomyceta. Studies in Mycology 64: 135–144. https://doi.org/10.3114/sim.20....
 
7.
Nelsen, M. P., Lücking, R., Mbatchou, J. S., Andrew, C. J., Spielmann, A. A. & Lumbsch, H. T. 2011. New insights into relationships of lichen-forming Dothideomycetes. Fungal Diversity 51: 155–162. https://doi.org/10.1007/s13225....
 
8.
Poncet, R., Lohézic – Le Dévéhat, F., Ferron, S., Hivert, J., Fontaine, C., Picot, F., Bidault, E. & Kervran, L. 2021. The genus Ramalina (Ascomycota, Lecanoromycetes, Ramalinaceae) from the Scattered Islands (French Southern and Antarctic Lands), with descriptions of three new species. Plant and Fungal Systematics 66(2): 211–224. https://doi.org/10.35535/pfsys....
 
9.
Stamatakis, A. 2014. RAxML version 8: a tool for phylogenetic analysis and post-analysis of large phylogenies. Bioinformatics 30: 1312–1313. https://doi.org/10.1093/bioinf....
 
10.
Suetrong, S., Schoch, C. L., Spatafora, J. W., Kohlmeyer, J., Volkmann-Kohlmeyer, B., Sakayaroj, J., Phongpaichit, S., Tanaka, K., Hirayama, K. & Jones, E. B. G. 2009. Molecular systematics of the marine Dothideomycetes. Studies in Mycology 64: 155–173. https://doi.org/10.3114/sim.20....
 
11.
Swofford, D. L. 2002. PAUP*: Phylogenetic analysis using parsimony (*and other methods), Version 4.0b10. Sinauer Associates, Sunderland, Massachusetts.
 
12.
Vilgalys, R. & Hester, M. 1990. Rapid genetic identification and mapping of enzymatically amplified ribosomal DNA from several Cryptococcus species. Journal of Bacteriology 172: 4238–4246. https://doi.org/10.1128/jb.172....
 
13.
Voglmayr, H. & Jaklitsch, W. M. 2008. Prosthecium species with Stegonsporium anamorphs on Acer. Mycological Research 112: 885–905. https://doi.org/10.1016/j.mycr....
 
14.
Voglmayr, H., Rossman, A. Y., Castlebury, L. A. & Jaklitsch, W. M. 2012. Multigene phylogeny and taxonomy of the genus Melanconiella (Diaporthales). Fungal Diversity 57: 1–44. https://doi.org/10.1007/s13225....
 
15.
Voglmayr, H., Gardiennet, A. & Jaklitsch, W. M. 2016. Asterodiscus and Stigmatodiscus, two new apothecial dothideomycete genera and the new order Stigmatodiscales. Fungal Diversity 80: 271–284. https://dx.doi.org/10.1007%2Fs....
 
16.
Voglmayr, H., Fournier, J. & Jaklitsch, W. M. 2017. Stigmatodiscus pruni, a new dothideomycete with hysteriform ascomata. Sydowia 69: 29–35. https://doi.org/10.12905/0380.....
 
17.
Voglmayr, H. & Pintos Amengual, A. 2018. Three new species of Stigmatodiscus from Mallorca (Spain). Mycological Progress 17: 1189–1201. https://doi.org/10.1007/s11557....
 
18.
Werle, E., Schneider, C., Renner, M., Völker, M. & Fiehn, W. 1994. Convenient single-step, one tube purification of PCR products for direct sequencing. Nucleic Acids Research 22: 4354–4355. https://doi.org/10.1093/nar/22....
 
19.
White, T. J., Bruns, T., Lee, S. & Taylor, J. 1990. Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. In: Innis, M. A., Gelfand, D. H., Sninsky, J. J. & White, T. J. (eds), PCR Protocols: A guide to methods and applications, pp. 315–322. Academic Press, New York. https://doi.org/10.1016/B978-0....
 
 
CITATIONS (1):
1.
Updates on the classification and numbers of marine fungi
Mark Calabon, E.B. Jones, Ka-Lai Pang, Mohamed Abdel-Wahab, Jing Jin, Bandarupalli Devadatha, Resurreccion Sadaba, Carlo Apurillo, Kevin Hyde
Botanica Marina
 
eISSN:2657-5000
ISSN:2544-7459
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