Puccinia chunjii, a close relative of the cereal stem rusts revealed by molecular phylogeny and morphological study. | LitMetric

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Puccinia chunjii, a close relative of the cereal stem rusts revealed by molecular phylogeny and morphological study. | LitMetric

Puccinia chunjii, a close relative of the cereal stem rusts revealed by molecular phylogeny and morphological study.

Miao Liu Sarah Hambleton

Mycologia

Eastern Cereal and Oilseed Research Center, Agriculture and Agri-Food Canada, Ottawa, Canada.

Published: November 2012

A new rust fungus specimen resembling cereal stem rusts was found on Elymus species in Gansu province, China.
DNA analysis showed it is closely related to but distinct from the Puccinia graminis species complex.
Microscopic examination provided unique characteristics, leading to its classification as a new species named Puccinia chunjii sp. nov.

A rust specimen with macroscopic similarities to the cereal stem rusts was collected on Elymus sp. from Gansu province, China. Phylogenetic analyses of ITS and COI DNA sequences indicated the fungus was closely related but distinct as a strongly supported sister taxon to the Puccinia graminis species complex. Microscopic examination revealed diagnostic teliospore characteristics, differentiating it from P. graminis and other morphologically similar rusts. Herein, we designate a name for this new lineage, Puccinia chunjii sp. nov.

Download full-text PDF	Source
http://dx.doi.org/10.3852/11-251	DOI Listing

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