<i>Cercosporella</i>and<i>Ramularia</i>

Kirschner, Roland

doi:10.3852/07-038

Cited by 23 publications

(34 citation statements)

References 26 publications

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“…Based on the epitypification of Mycosphaerella punctiformis (now Ramularia endophylla) , and the molecular characterization of Ramularia pusilla (type species of Ramularia) by Kirschner (2009), the names Mycosphaerella and Ramularia are confirmed as congeneric. This means it is now possible to separate species closely allied to R. endophylla, such as R. nyssicola ( Minnis et al 2011).…”

Section: Discussionmentioning

confidence: 99%

“…The link between Ramularia grevilleana ( Jørstad 1945) and Mycosphaerella fragariae ( Lindau 1897) was experimentally proven by Dudley (1889) who observed the ascospores germinating within the ascus inside the perithecium, developing into mycelium that grew out through the perithecium wall and ostiolum, and produced conidia. Since then, most authors have treated this link as reliable and both names have appeared together in several publications ( Maas, 1984, Crous et al, 2000, Braun and Pennycook, 2003and Kirschner, 2009. Ramularia grevilleana ( Jørstad 1945) was initially described as Cylindrosporium grevilleanum by Oudemans (1873).…”

Section: Taxonomymentioning

confidence: 99%

“…The structure and colour of conidiogenous loci were considered important characters to define the genus and distinguish it from closely allied genera ( Braun, 1995 andBraun, 1998). Recent molecular studies indicate that these characters were not always phylogenetically informative, and that the generic concept of some asexual genera warranted revision Kirschner, 2009). For example, Cercosporella is usually distinguished from Ramularia by bulging, hyaline conidiogenous loci.…”

Section: Introductionmentioning

confidence: 99%

“…A DNA phylogeny based on sequences obtained from the large nuclear ribosomal subunit (LSU) places the type species of Cercosporella (Cercosporella virgaureae) in a sister clade to Ramularia, but Cercosporella centaureicola, for example, clustered within Ramularia sensu stricto. The ultrastructure of conidiogenous loci differed between these genera, with Ramularia having a raised rim with a central dome that is cladosporium-like, while Cercosporella has flat scars in the shape of a truncated cone ( Kirschner 2009). …”

Section: Introductionmentioning

confidence: 99%

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The rise of Ramularia from the Mycosphaerella labyrinth

et al. 2015

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Highlights• Ramulariais the correct name for species in Mycosphaerella s. str.• Most species named in Mycosphaerella represent other genera.• Very few Ramularia spp. have confirmed Mycosphaerella sexual morphs.• Ramularia contains both host-specific, and wide host range species. AbstractIn this study we aimed to resolve the Ramularia endophylla species-complex by applying a polyphasic approach involving morphology and multi-gene phylogeny. Eleven partial genes were targeted for amplification and sequencing for a total of 81 isolates representing R. endophylla s. lat. and 32 isolates representing 11 Ramularia species that were previously linked to a Mycosphaerella sexual morph in literature. A Bayesian phylogenetic analysis, as well as a parsimony analysis, was performed on a combined five-locus dataset and the resulting trees showed significant support for three species within the complex, including the previously described R. endophylla and R. vizellae, and one novel species, Ramularia unterseheri. A parsimony analysis was also separately performed with mating-type gene sequences (MAT1-1-1 and MAT1-2-1) and the resulting tree topologies were in accordance with that of the multigene analysis. A bibliographic review of the proposed links between Ramularia spp. and their purported Mycosphaerella sexual morphs is also presented, confirming six connections in Ramularia. In spite of more than 10 000 species having been described in Mycosphaerella, the majority is shown to belong to other genera, suggesting that the taxa identified as Mycosphaerella in much of the plant pathology literature needs to be revisited.

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Section: Discussionmentioning

confidence: 99%

Section: Taxonomymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The rise of Ramularia from the Mycosphaerella labyrinth

et al. 2015

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“…Sequences were assembled and aligned by Clustal X software [37] and adjusted manually in CodonCode Aligner [38]. PCR results and properties of the three DNA barcoding regions of tartary buckwheat samples were analyzed by MEGA6 [39].…”

Section: Genetic Analysismentioning

confidence: 99%

Tartary Buckwheat Genetic Diversity in the Himalayas Associated with Farmer Landrace Diversity and Low Dietary Dependence

et al. 2017

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While crop genetic diversity supports ecological processes and food security, there have been few cross-cultural studies evaluating the influence of cultural and dietary factors on the conservation of genetic resources. This study examines genetic diversity patterns of tartary buckwheat in 18 smallholder farming communities across five regions of China (Yunnan Province, Tibet Autonomous Region and Sichuan Province) and Bhutan managed by Yi, Tibetan, and Bhutanese farmers using ethnobotanical surveys and DNA barcoding. Findings emphasize that high dietary dependence linked to a single crop may result in simplification of genetic diversity as well as agricultural systems and landscapes more broadly. We advocate for the diversification of crops in agricultural systems as well as diets through the integration of scientific research and farmers' ecological knowledge and practices towards meeting global food security while supporting environmental well-being through biodiversity conservation.

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