The Nuclear Cycle in Herpobasidium filicinum with a Discussion of the Significance of Homothallism in Basidiomycetes

Jackson, H. S.

doi:10.2307/3754170

Cited by 25 publications

(21 citation statements)

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“…3) This type is equivalent to the "type 7" of Petersen (1974) and the "type IV" of Hiratsuka and Sato (1982). No equivalent "variation" is found in Jackson (1935).…”

Section: Introductionmentioning

confidence: 83%

“…Cytological studies of the rust life cycle have been reviewed by Moreau and Moreau (1919), Dodge and Gaiser (1926), Dodge (1929), Jackson (1931Jackson ( , 1935, and Olive (1953) and summarized with some revisions by Petersen (1974) and Hiratsuka and Sato (1982). Hiratsuka (1973a) discussed the nuclear cycle in relation to the terminology of the spore stages.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, no matter which fungus, i.e., a Herpobasidiumrelated fungus parasitic on ferns (Jackson 1935), an auriculariaceous parasitic fungus related to Jola, Eocronartium, Herpobasidium, and Platycarpa (Leppik 1955(Leppik , 1965, an ascomycetous proto-Taphrina parasitic on ferns (Savile 1955(Savile , 1976, or a Pachnocybe-or Helicobasidium-related fungus (Swann et al 1998), was an immediate ancestor of rust fungi, the "first rust fungus" certainly possessed only a basidial stage with morphologically undifferentiated probasidia (teliospores). The life cycle of the ancestral rust fungus only with the basidium stage is said to be "unexpanded" (Hennen and Buriticá 1980).…”

Section: Introductionmentioning

confidence: 99%

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The diversity of nuclear cycle in microcyclic rust fungi (Uredinales) and its ecological and evolutionary implications

Ono

2002

Mycoscience

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Nine types with 11 variations of nuclear cycle and associated metabasidium development were distinguished in microcyclic rust fungi. An additional type was recognized in rust fungi with an expanded life cycle. A significant proportion of rust fungi with a reduced life cycle is assumed to have lost a sexual genetic recombination process, being either apomictic or asexual in reproduction. Most species that retain a sexual process in the microcyclic life cycle seem to have become homothallic. During life cycle evolution by the omission of spore stages, these traits might have had a selective advantage for those species that had less opportunity to encounter a genetically different but sexually compatible mate because of isolated patchy distribution or a short growing season. The findings that different populations of a morphologically identifiable species exhibit two or more distinct patterns of nuclear cycle and different metabasidium development indicate that microcyclic lineages might have evolved independently and repeatedly from a macrocyclic parental species. Those lineages are morphologically the same but would differ from each other in their genetics and biology.

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“…3) This type is equivalent to the "type 7" of Petersen (1974) and the "type IV" of Hiratsuka and Sato (1982). No equivalent "variation" is found in Jackson (1935).…”

Section: Introductionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The diversity of nuclear cycle in microcyclic rust fungi (Uredinales) and its ecological and evolutionary implications

Ono

2002

Mycoscience

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“…c) Our selection of rust fungi covers quite diverse host spectra, containing species parasitizing on gymnosperms and angiosperms (Gymnosporangium clavariaeforme and Coleosporium tussilaqinis), on dicots and monocots (Puccinia poarum), and a microcyclic rust on dicots (Endophyllum sempervivi). Therefore, because of their high diversity in respect to host spectra, life cycles, spore morphology and basidial type, the rust fungi were by many authors assumed to represent quite an old group (5)(6)(7)(8)(9)(10). Thus, the 5S rRNA sequences from various rust fungi were expected to show significant differences rather than being similar, as high differences were found within other basidiomycetous groups like the smut fungi, where analyses revealed that more than one third of the nucleotides differ between Ustilago violacea and Tilletia controversa (1).…”

Section: Resultsmentioning

confidence: 99%

Highly conserved 5S ribosomal RNA sequences in four rust fungi and atypical 5S rRNA secondary structure inMicrostroma juglandis

Gottschalk

Blanz

1984

Nucl Acids Res

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The 5S ribosomal RNA nucleotide sequences of five basidiomycetous fungi, Coleosporium tussilaginis, Gymnosporangium clavariaeforme, Puccinia poarum, Endophyllum sempervivi and Microstroma juglandis were determined.Despite high differentiation in their host spectra the four rust species are highly conserved with respect to their 5S rRNA sequences, which fit with the basidiomycete cluster 5 described by Walker and Doolittle (1).The sequences obtained from the first three rust fungi were proven to be identical while the sequence from Endophyllum sempervivi showed two base substitutions compared with the other rust fungi. The Microstroma juglandis 5S rRNA sequence differs from all other basidiomycete 5S rRNA sequences published so far in respect to its secondary structure which shows an atypical 'CCA' loop in helix D, but it reveals typical basidiomycetous signature nucleotides. Therefore Microstroma juglandis represents a cluster of its own within the Basidiomycetes. A dendrogram was constructed based on Kimura's "Neutral Theory of Molecular Evolution".

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“…Homothallic microcyclic species may be derived from heterothallic macrocyclic species (Jackson 1931). The pycnia maybe functionally suppressed gradually during evolution from heterothallism to homothallism (Buller 1950).…”

Section: Discussionmentioning

confidence: 99%

Dikaryotization in Some Species of <i>Ravenelia</i>

Hiremath

Pavgi

1976

CYTOLOGIA

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The Nuclear Cycle in Herpobasidium filicinum with a Discussion of the Significance of Homothallism in Basidiomycetes

Cited by 25 publications

References 0 publications

The diversity of nuclear cycle in microcyclic rust fungi (Uredinales) and its ecological and evolutionary implications

The diversity of nuclear cycle in microcyclic rust fungi (Uredinales) and its ecological and evolutionary implications

Highly conserved 5S ribosomal RNA sequences in four rust fungi and atypical 5S rRNA secondary structure inMicrostroma juglandis

Dikaryotization in Some Species of <i>Ravenelia</i>

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