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Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

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Record number 397150
Title Phylogeny and systematics of the genus Calonectria
Author(s) Lombard, L.; Crous, P.W.; Wingfield, B.D.; Wingfield, M.J.
Source Studies in Mycology 66 (2010)1. - ISSN 0166-0616 - p. 31 - 69.
DOI https://doi.org/10.3114/sim.2010.66.03
Department(s) Laboratory of Phytopathology
EPS-4
Publication type Refereed Article in a scientific journal
Publication year 2010
Keyword(s) internal transcribed spacers - sp-nov - cylindrocladium-floridanum - species concepts - dna-sequences - ribosomal dna - beta-tubulin - morphology - polymorphism - spathiphylli
Abstract Species of Calonectria are important plant pathogens, several of which have a worldwide distribution. Contemporary taxonomic studies on these fungi have chiefly relied on DNA sequence comparisons of the ß-tubulin gene region. Despite many new species being described, there has been no phylogenetic synthesis for the group since the last monographic study almost a decade ago. In the present study, the identity of a large collection of Calonectria isolates from various geographic regions was determined using morphological and DNA sequence comparisons. This resulted in the discovery of seven new species; Ca. densa, Ca. eucalypti, Ca. humicola, Ca. orientalis, Ca. pini, Ca. pseudoscoparia and Ca. sulawesiensis, bringing the total number of currently accepted Calonectria species to 68. A multigene phylogeny was subsequently constructed for all available Calonectria spp., employing seven gene regions, namely actin, ß-tubulin, calmodulin, histone H3, the internal transcribed spacer regions 1 and 2 and the 5.8S gene of the ribosomal RNA, 28S large subunit RNA gene and translation elongation 1-alpha. Based on these data 13 phylogenetic groups could be distinguished within the genus Calonectria that correlated with morphological features. Dichotomous and synoptic keys to all Calonectria spp. currently recognised are also provided.
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