Two new species and one new record of Melampsora on willows from China

Zhao, Peng; Tian, Chengming; Yao, Yi‐Jian; Wang, Qi; Yamaoka, Yuichi; Kakishima, Makoto

doi:10.1007/s11557-015-1091-6

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…salicis-viminalis (M21) and M . coleosporides (M22)] that fitted well with the original descriptions and type specimen morphologies [ 7 , 9 , 12 , 16 , 30 , 31 , 58 , 59 ]. However, specimens identified as M .…”

Section: Resultssupporting

confidence: 59%

“…Two hundred and six dried specimens from China were borrowed from several herbaria to cover the largest possible host and locality range based on taxonomic literature reported in China. Most of these specimens were used for species description or illustration in Tai [ 43 ], Wang et al [ 20 ], Zhuang [ 21 – 24 ], Cao and Li [ 44 ], Zhuang and Wei [ 26 , 27 ], Liu [ 45 ], Zhuang [2005] and Zhao et al [ 29 – 31 ]. Specimens were chosen according to the name on the attached labels and the host information.…”

Section: Methodsmentioning

confidence: 99%

“…Melampsora coleosporioides was the first reported species on willows in northeastern China in 1913 [ 18 , 19 ]. Thereafter, regional investigations were continuously performed to explore the Melampsora species on willows, and the number of Melampsora species in China recently reached 31 [ 20 – 31 ]. These species are primarily recognized based on several European or Japanese taxonomic systems proposed at different period; thus, species are variously circumscribed.…”

Section: Introductionmentioning

confidence: 99%

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Integrating a Numerical Taxonomic Method and Molecular Phylogeny for Species Delimitation of Melampsora Species (Melampsoraceae, Pucciniales) on Willows in China

et al. 2015

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The species in genus Melampsora are the causal agents of leaf rust diseases on willows in natural habitats and plantations. However, the classification and recognition of species diversity are challenging because morphological characteristics are scant and morphological variation in Melampsora on willows has not been thoroughly evaluated. Thus, the taxonomy of Melampsora species on willows remains confused, especially in China where 31 species were reported based on either European or Japanese taxonomic systems. To clarify the species boundaries of Melampsora species on willows in China, we tested two approaches for species delimitation inferred from morphological and molecular variations. Morphological species boundaries were determined based on numerical taxonomic analyses of morphological characteristics in the uredinial and telial stages by cluster analysis and one-way analysis of variance. Phylogenetic species boundaries were delineated based on the generalized mixed Yule-coalescent (GMYC) model analysis of the sequences of the internal transcribed spacer (ITS1 and ITS2) regions including the 5.8S and D1/D2 regions of the large nuclear subunit of the ribosomal RNA gene. Numerical taxonomic analyses of 14 morphological characteristics recognized in the uredinial-telial stages revealed 22 morphological species, whereas the GMYC results recovered 29 phylogenetic species. In total, 17 morphological species were in concordance with the phylogenetic species and 5 morphological species were in concordance with 12 phylogenetic species. Both the morphological and molecular data supported 14 morphological characteristics, including 5 newly recognized characteristics and 9 traditionally emphasized characteristics, as effective for the differentiation of Melampsora species on willows in China. Based on the concordance and discordance of the two species delimitation approaches, we concluded that integrative taxonomy by using both morphological and molecular variations was an effective approach for delimitating Melampsora species on willows in China.

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