Studies in Mycology (2010) 66, 31-69

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L. Lombard, P.W. Crous, B.D. Wingfield and M.J. Wingfield (2010)
Phylogeny and systematics of the genus Calonectria
Studies in Mycology 66, 31-69
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 β-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, β-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.
Taxonomic novelties: New combinations - Calonectria angustata (Crous and El-Gholl) L. Lombard, M.J. Wingf. and Crous, Ca. australiensis (Crous and H.D. Hyde) L. Lombard, M.J. Wingf. and Crous, Ca. canadensis (J.C. Kang, Crous and C.L. Schoch) L. Lombard, M.J. Wingf. and Crous, Ca. chinensis (Crous) L. Lombard, M.J. Wingf. and Crous, Ca. citri (H.S. Fawc. and Klotz) L. Lombard, M.J. Wingf. and Crous, Ca. curvata (Boedijn and Reitsma) L. Lombard, M.J. Wingf. and Crous, Ca. curvispora (Crous and D. Victor) L. Lombard, M.J. Wingf. and Crous, Ca. ecuadoriae (Crous and M.J. Wingf.) L. Lombard, M.J. Wingf. and Crous, Ca. gordoniae (Leahy, T.S. Schub. and El-Gholl) L. Lombard, M.J. Wingf. and Crous, Calonectria hawksworthii (Peerally) L. Lombard, M.J. Wingf. and Crous, Calonectria hurae (Crous) L. Lombard, M.J. Wingf. and Crous, Calonectria indonesiae (Crous) L. Lombard, M.J. Wingf. and Crous, Ca. leucothoës (El-Gholl, Leahy and T.S. Schub.) L. Lombard, M.J. Wingf. and Crous, Ca. malesiana (Crous) L. Lombard, M.J. Wingf. and Crous, Ca. multiphialidica (Crous, Simoneau and Risède) L. Lombard, M.J. Wingf. and Crous, Ca. pacifica (J.C. Kang, Crous and C.L. Schoch) L. Lombard, M.J. Wingf. and Crous, Ca. penicilloides (Tubaki) L. Lombard, M.J. Wingf. and Crous, Ca. pseudonaviculata (Crous, J.Z. Groenew. and C.F. Hill) L. Lombard, M.J. Wingf. and Crous, Ca. sumatrensis (Crous) L. Lombard, M.J. Wingf. and Crous. New species - Ca. densa L. Lombard, M.J. Wingf. and Crous, Ca. eucalypti L. Lombard, M.J. Wingf. and Crous, Ca. humicola L. Lombard, M.J. Wingf. and Crous, Ca. orientalis L. Lombard, M.J. Wingf. and Crous, Ca. pini L. Lombard, M.J. Wingf. and Crous, Ca. pseudoscoparia L. Lombard, M.J. Wingf. and Crous, Ca. sulawesiensis L. Lombard, M.J. Wingf. and Crous.
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Full text of article
Database assignments for author(s): Pedro W. Crous, Brenda D. Wingfield, Michael J. Wingfield, Lorenzo Lombard

Research topic(s) for pests/diseases/weeds:
identification/taxonomy


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Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Calonectria pseudonaviculata
Calonectria canadiana
Calonectria hawksworthii