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oai:figshare.com:article/34021164 2026-09-29T04:32:48Z category_708 portal_316 item_type_3 month_year_09_2026

Supplementary file 1_Unearthing a fungal giant: Dianjunaceae fam. nov., a novel Paleocene lineage of Xylariales harboring Dianjunus rex gen. et sp. nov.docx Jing Song (188926) Zhuyue Yan (25135149) Jesús Pérez-Moreno (25135152) Fengming Zhang (1645021) Shimei Yang (9919707) Tao Xie (146080) Luofeng Su (11048193) Jianwei Liu (163716) Yanliang Wang (1416358) Dong Liu (115204) Zhenyan Yang (6916742) Chengmo Yang (25135155) Wei Liu (20030) Xiaofei Shi (1830124) Shanping Wan (22512395) Ratchadawan Cheewangkoon (9115572) Dongqin Dai (10898130) Indunil C. Senanayake (20969438) Fuqiang Yu (10495292) Mycology divergence time genome sequences large stromata morphology novel taxa <p>During mycological surveys in Yunnan Province, China, specimens of a fungus producing massive, upright stromata up to 50 cm high and individually 2.2 kg in weight were sampled. Through an integrative taxonomic approach combining detailed morphology, multilocus phylogeny [internal transcribed spacer (ITS), large subunit ribosomal DNA (LSU), RNA polymerase II subunit 2 (RPB2), and beta-tubulin (TUB2)], and phylogenomic analyses, this fungus is proposed as the new species Dianjunus rex gen. et sp. nov., the type of the new family Dianjunaceae (Xylariales). Phylogenetic analyses robustly place Dianjunaceae as a distinct sister clade to Graphostromataceae. Divergence time estimation dates the origin of this family to the early Paleocene (~65 million years ago), coinciding with the period following the Cretaceous–Paleogene (K–Pg) extinction, when an estimated 75% of all plant and animal species went extinct, and a significant ecological reorganization of life on Earth happened. The stromata of D. rex represent the largest fructifications documented within the Ascomycota, significantly expanding the known morphological range of the Xylariales. The study provides a comprehensive description, including a nodulisporium-like anamorph with periconiella-like branching patterns, and discusses the taxon’s phylogenetic placement and distinctive morphology. This discovery highlights the unexplored fungal diversity in East Asian forests.</p> 2026-09-29T04:32:48Z Dataset Dataset 10.3389/ffunb.2026.1940464.s001 https://figshare.com/articles/dataset/Supplementary_file_1_Unearthing_a_fungal_giant_Dianjunaceae_fam_nov_a_novel_Paleocene_lineage_of_Xylariales_harboring_Dianjunus_rex_gen_et_sp_nov_docx/34021164 CC BY 4.0