PMC

CBS 388.35 Mucor abundans. a, c. Sporangiophore with columella and collar; b. sporangiospores; d. chlamydospores. — Scale bars = 50 μm.

Morphology of the genus Backusella. a, b. CBS 128.70 Backusella circina, a. unispored sporangiola; b. transitorily recurved sporangiophore; c. CBS 318.52 Mucor recurvus var. recurvus (Backusella recurva here), transitorily recurved sporangiophore; d. CBS 564.66 Mucor variabilis (Backusella variabilis here), transitorily recurved sporangiophore. — Scale bar: a = 10 μm, b–d = 50 μm.

RAxML phylogram of the genus Actinomucor based on the ITS region. Branches with bootstrap values of 75 % or higher are printed in bold. Ex-type strains are designated by: T = ex-type strain, NT = ex-neotype strain. Ex-type strains are printed in bold. Clinical strains are highlighted by red strain and GenBank accession numbers.

RAxML phylogram of the genus Rhizomucor based on the ITS region. Branches with bootstrap values of 75 % or higher are printed in bold. Ex-type strains are designated by: T = ex-type strain, LT = ex-lectotype strain, ET = ex-epitype strain. The identifying ex-type strain of a clade is printed in bold. Clones are specified by a ‘c’ followed by the clone number. Clinical strains are highlighted by red strain and GenBank accession numbers.

RAxML phylogram of the Mucor recurvus group and Backusella based on the ITS region. Branches with bootstrap values of 75 % or higher are printed in bold. Ex-type strains are designated by: T = ex-type strain, ET = ex-epitype strain, LT = ex-lectotype strain, PT = ex-paratype strain. Ex-type strains of currently accepted taxa are printed in bold. Clones are specified by a ‘c’ followed by the clone number. Potentially undescribed taxa are indicated by bold blue font. Morphological identifications are given in quotation marks.

Morphological diversity of Mucoraceae. a. CBS 243.35 Mucor luteus, sporangiophore and sporangium with collar, columella and sporangiospores; b. CBS 385.95 Rhizomucor endophyticus (recombined into Mucor endophyticus in this paper), sporangiophore with columella and collar; c. CBS 243.35 Mucor luteus, rhizoids formed on glass slides; d. CBS 110662 Zygorhynchus multiplex (recombined into Mucor multiplex in this paper), zygospore; e. CBS 385.95 Rhizomucor endophyticus (recombined into Mucor endophyticus in this paper), zygospore; f. CBS 588.88 Pirella circinans, lateral sporangium; g. CBS 243.57 Ellisomyces anomalus, multispored sporangiola; h. Circinella rigida (recombined into Mucor durus in this paper), circinate sporangiophore branch with apophysate sporangium; i. CBS 341.55 Thamnidium elegans, multispored sporangiola. — Scale bars = 10 μm, except c = 100 μm.

RAxML phylogram of the genus Rhizopus based on the ITS region. Branches with bootstrap values of 75 % or higher are printed in bold. Ex-type strains are designated by: T = ex-type strain, NT = ex-neotype strain. Ex-type strains of currently accepted taxa are printed in bold. Clones are specified by a ‘c’ followed by the clone number. Clinical strains are highlighted by red strain and GenBank accession numbers, non-human hosts are given in brackets. Potentially undescribed taxa are indicated by bold blue font. Morphological identifications are given in quotation marks.

RAxML phylogram of the Mucor amphibiorum group and related taxa based on the ITS region. Branches with bootstrap values of 75 % or higher are printed in bold. Ex-type strains are designated by: T = ex-type strain, ET = ex-epitype strain, HT = ex-holotype strain, IT = ex-isotype strain, LT = ex-lectotype strain, NT = ex-neotype strain, PT = ex-paratype strain. Ex-type strains of currently accepted taxa are printed in bold. Clones are specified by a ‘c’ followed by the clone number. Clinical strains are highlighted by red strain and GenBank accession numbers, non-human hosts are given in brackets. Potentially undescribed taxa are indicated by bold blue font. Morphological identifications are given in quotation marks.

RAxML phylogram of the Mucor mucedo group, M. flavus group, M. hiemalis group and related taxa based on the ITS region. Branches with bootstrap values of 75 % or higher are printed in bold. Ex-type strains are designated by: T = ex-type strain, ET = ex-epitype strain, HT = ex-holotype strain, IT = ex-isotype strain, LT = ex-lectotype strain, NT = ex-neotype strain. Ex-type strains of currently accepted taxa are printed in bold. Clones are specified by a ‘c’ followed by the clone number. Clinical strains are highlighted by red strain and GenBank accession numbers, non-human hosts are given in brackets. Potentially undescribed taxa are indicated by bold blue font. Morphological identifications are given in quotation marks.

RAxML phylogram of the Mucor racemosus group and related taxa based on the ITS region. Branches with bootstrap values of 75 % or higher are printed in bold. Ex-type strains are designated by: T = ex-type strain, ET = ex-epitype strain, IT = ex-isotype strain, NT = ex-neotype strain. Ex-type strains of currently accepted taxa are printed in bold. Clones are specified by a ‘c’ followed by the clone number. Clinical strains are highlighted by red strain and GenBank accession numbers, non-human hosts are given in brackets. Potentially undescribed taxa are indicated by bold blue font. Morphological identifications are given in quotation marks. Black bars indicate groups within Mucor circinelloides f. circinelloides including a large number of clinical strains.

RAxML phylogram of the Mucorales based on the D1/D2 region of the LSU. Each LSU sequence covers for a MOTU in ITS defined by a similarity threshold of 99 %. Branches with bootstrap values of 75 % or higher are printed in bold. Morphological groups according to sporangiophore branching and diameter of the sporangium: Mucor mucedo group, M. flavus group, M. hiemalis group, M. racemosus group, M. amphibiorum group, M. recurvus group. Black bar highlights the Mucor circinelloides complex. Ex-type strains are designated by: T = ex-type strain, ET = ex-epitype strain, HT = ex-holotype strain, IT = ex-isotype strain, LT = ex-lectotype strain, NT = ex-neotype strain, PT = ex-paratype strain, ST = ex-syntype strain, AUT = authentic material, c = clone, clinical strains are highlighted by red strain and GenBank accession numbers, strains representing MOTUs that comprise clinical strains are marked by red squares. Clinically relevant species are indicated by a red circle if no ITS sequence of a clinical isolate was available for the assignment to a MOTU. Potentially undescribed taxa are indicated by bold blue font.