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Article | Open Access

Quasipucciniastrum agrimoniae, gen. et sp. nov. on Agrimonia (Rosaceae) from China

Xiao-Hua Qia,b, Lei Caia ( ), Peng Zhaoa
State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
University of Chinese Academy of Sciences, Beijing, China
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Abstract

A new rust genus, Quasipucciniastrum, typified by Q. agrimoniae sp. nov., is proposed based on distinct morphological characters and phylogenetic placement. This genus is characterised by its uredinial ostiolar peridial cells with rough surface and sessile, multicellular teliospores with apparently thickened apical wall. Molecular phylogenetic analyses using internal transcribed spacer regions and intervening 5.8S nrRNA gene (ITS) and the large subunit (LSU) rDNA revealed that this genus is sister to the genus Cronartium (Cronartiaceae), but morphologically it is distinct from Cronartium in the sessile teliospores that are divided by vertical septa. Morphologically, Quasipucciniastrum should be compared to Pucciniastrum (Pucciniastraceae) in its multicellular teliospores, but they were phylogenetically distant.

Keywords

AgrimonyCronartiaceaemolecular phylogenymorphologyPucciniastraceae

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Mycology
Volume 10 Issue 3,
September 2019
Pages 141-150
DOI: 10.1080/21501203.2019.1610522

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Cite this article:
Qi X-H, Cai L, Zhao P. Quasipucciniastrum agrimoniae, gen. et sp. nov. on Agrimonia (Rosaceae) from China. Mycology, 2019, 10(3): 141-150. https://doi.org/10.1080/21501203.2019.1610522

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Received: 31 March 2019
Accepted: 17 April 2019
Published: 30 April 2019
© 2019 The Author(s).

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.