Phylogeny of Calonectria and selected hypocrealean genera with cylindrical macroconidia

TY - JOUR

T1 - Phylogeny of Calonectria and selected hypocrealean genera with cylindrical macroconidia

AU - Schoch, C.L.

AU - Crous, P.W.

AU - Wingfield, M.J.

AU - Wingfield, B.D.

N1 - K.A. Seifert, W. Gams, P.W. Crous & G.J. Samuels, eds. Studies in Mycology 45: 45-62

PY - 2000

Y1 - 2000

N2 - This study employs DNA sequence analysis to infer the phylogeny of Calonectria species and species of other hypocrealean genera with cylindrical macroconidia. The taxonomy of Cylindrocladiella species was also investigated. Calonectria forms a monophyletic lineage, as do the anamorph genera Cylindrocladiella, Cylindrocarpon, Curvicladium, Gliocephalotrichum, Gliocladiopsis and Xenocylindrocladium. Based on molecular data and distinctive anamorph morphology, new holomorph genera are proposed for the teleomorphs of Cylindrocladiella (Nectricladiella), Gliocladiopsis (Glionectria) and Xenocylindrocladium (Xenocalonectria). The data also support the recognition of previously proposed holomorph genera for Cylindrocarpon (Neonectria) and Gliocephalotrichum (Leuconectria). To date, no teleomorph has been reported for Curvicladium cigneum, although our results suggest that C. cigreum is closely related to Xenocalonectria. Eight species of Cylindrocladiella are recognized, with two having known teleomorphs in Nectricladiella, namely N. camelliae (Cylindrocladiella microcylindrica) and N. infestans (Ce. infestans). A key to holomorph genera, based primarily on anamorphic characters, is appended.

AB - This study employs DNA sequence analysis to infer the phylogeny of Calonectria species and species of other hypocrealean genera with cylindrical macroconidia. The taxonomy of Cylindrocladiella species was also investigated. Calonectria forms a monophyletic lineage, as do the anamorph genera Cylindrocladiella, Cylindrocarpon, Curvicladium, Gliocephalotrichum, Gliocladiopsis and Xenocylindrocladium. Based on molecular data and distinctive anamorph morphology, new holomorph genera are proposed for the teleomorphs of Cylindrocladiella (Nectricladiella), Gliocladiopsis (Glionectria) and Xenocylindrocladium (Xenocalonectria). The data also support the recognition of previously proposed holomorph genera for Cylindrocarpon (Neonectria) and Gliocephalotrichum (Leuconectria). To date, no teleomorph has been reported for Curvicladium cigneum, although our results suggest that C. cigreum is closely related to Xenocalonectria. Eight species of Cylindrocladiella are recognized, with two having known teleomorphs in Nectricladiella, namely N. camelliae (Cylindrocladiella microcylindrica) and N. infestans (Ce. infestans). A key to holomorph genera, based primarily on anamorphic characters, is appended.

M3 - Article

SN - 0166-0616

VL - 45

SP - 45

EP - 62

JO - Studies in Mycology

JF - Studies in Mycology

ER -