Four new Phragmidium (Phragmidiaceae, Pucciniomycetes) species from Rosaceae plants in Guizhou Province of China

Jing-E Sun; Qian Zhang; Wen-Mei Luo; Yuan-Qiao Yang; Hua-Ming An; Yong Wang

doi:10.3897/mycokeys.93.90861

Four new Phragmidium (Phragmidiaceae, Pucciniomycetes) species from Rosaceae plants in Guizhou Province of China

MycoKeys. 2022 Nov 10:93:193-213. doi: 10.3897/mycokeys.93.90861. eCollection 2022.

Authors

Jing-E Sun¹, Qian Zhang¹, Wen-Mei Luo¹, Yuan-Qiao Yang¹, Hua-Ming An^{1

2}, Yong Wang¹

Affiliations

¹ Department of Plant Pathology, Agricultural College, Guizhou University, Guiyang, 550025, China.
² Agricultural College, Guizhou University, Guiyang, 550025, China.

Abstract

In this study, four new species of Phragmidium were proposed based on morphological and molecular characters. In morphology, Phragmidiumrosae-roxburghii sp. nov. was distinguished to related taxa by its unique square to diamond-shaped urediniospores; Ph.rubi-coreani sp. nov. differed from Ph.barclayi and Ph.cibanum because of teliospores with fewer cells and shorter pedicels; urediniospores of Ph.potentillae-freynianae sp. nov. were bigger than Ph.duchesneae-indicae; and Ph.rosae-laevigatae sp. nov. produced bigger urediniospores than Ph.jiangxiense. The phylogenetic analyses based on the combination of two loci (ITS and LSU) also supported our morphological conclusion. In the meantime, three previously known species were also described herein.

Keywords: Basidiomycota; ITS; LSU; phylogeny; rust disease; taxonomy.

Jing-E Sun, Qian Zhang, Wen-Mei Luo, Yuan-Qiao Yang, Hua-Ming An, Yong Wang.

Grants and funding

This research is supported by the following projects: National Natural Science Foundation of China (No. 31972222, 31660011), Program of Introducing Talents of Discipline to Universities of China (111 Program, D20023), Talent project of Guizhou Science and Technology Cooperation Platform ([2017]5788-5, [2019]5641, [2019]13), Guizhou Science, Technology Department of International Cooperation Base project ([2018]5806), the project of Guizhou Provincial Education Department ([2020]001), and Guizhou Science and Technology Innovation Talent Team Project ([2020]5001).