Sectoring and recombination in illegitimate di-mon matings of Schizophyllum commune

Shalev, Moshe; Stamberg, Judith; Simchen, Giora

doi:10.1038/hdy.1972.83

Cited by 6 publications

(1 citation statement)

References 21 publications

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“…Thus a mycelium may be a chimera of genetically different mycelial parts benefiting mutually in exploiting distant food sources by translocation of nutrients throughout the mycelial network. In addition, somatic recombination occurs at low frequencies in both trikaryon and dikaryon mycelium ( Shalev et al 1972 ; Korhonen and Hintikka 1974 ; Frankel 1979 ; Anderson and Kohn 2007 ) and multiple nuclear haplotypes reassorted from somatically incompatible mycelia have been found residing in the same mycelium ( Johannesson and Stenlid 2004 ). Somatic incompatibilities do not necessarily result in the effective segregation of new-formed dikaryon pairings and a strictly compatible dikaryon condition is not always required for fruit body formation in basidiomycetes.…”

Section: Discussionmentioning

confidence: 99%

Observations on morphologic and genetic diversity in populations ofFiloboletus manipularis(Fungi: Mycenaceae) in southern Viet Nam

Vydryakova

Ov²,

Redhead

et al. 2014

Mycology

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The morphological variation of basidiomata of Filoboletus manipularis (Berk) Singer collected in southern Viet Nam was studied. Phylogenetic analyses comprising three gene loci indicated that these collections, although exhibiting widely varying morphologies, represented a single species with a population composed of genetically diverse, sexually compatible monokaryon parental strains. No correlation was found between any aspect of morphological variation and intraspecific phylogenetic patterns for the three gene loci studied. Primers were designed to amplify the intron-rich 5′ region of the translation elongation factor 1-α gene (tef1α) and amplicons cloned and sequenced to characterize the parental haplotypes for individual basidiomata. The presence of recombination over the entire morphological diversity seen was confirmed by split decomposition analysis and analysis of gene diversity indicated a lack of allelic fixation within local populations. On several occasions, more than two apparent parental haplotypes were characterized from individual basidiomata, indicating that at least some basidiomata are chimeric or otherwise develop from a multinucleate condition. The literature supporting our observations of the occurrence of multinucleate basidiomata is reviewed and possible mechanisms for this phenomenon are proposed.

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Section: Discussionmentioning

confidence: 99%

Observations on morphologic and genetic diversity in populations ofFiloboletus manipularis(Fungi: Mycenaceae) in southern Viet Nam

Vydryakova

Ov²,

Redhead

et al. 2014

Mycology

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Genomic Conflict in Fungal Mycelia

Ramsdale¹

1999

Structure and Dynamics of Fungal Populations

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Isolation and characterization of compatible diploids of Schizophyllum commune

Frankel

Ellingboe

1976

Molec. Gen. Genet.

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Common-AB diploids with several heterozygous biochemical markers were mated with appropriately marked haploid strains of S. commune in an effort to obtain compatible, common-A, and common-B diploid progeny with biochemical markers identical to those of the common-AB parent. The spores from these crosses were germinated on minimal medium. Five compatible diploids, but no common-A or common-B diploids, marked as desired, were isolated by this method. Two possessed some dikaryotic cells and two had many dikaryotic cells. One of the latter was shown to have peculiar behaviour associated with one of its B mating-type factors.

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Sectoring and recombination in illegitimate di-mon matings of Schizophyllum commune

Cited by 6 publications

References 21 publications

Observations on morphologic and genetic diversity in populations ofFiloboletus manipularis(Fungi: Mycenaceae) in southern Viet Nam

Observations on morphologic and genetic diversity in populations ofFiloboletus manipularis(Fungi: Mycenaceae) in southern Viet Nam

Genomic Conflict in Fungal Mycelia

Isolation and characterization of compatible diploids of Schizophyllum commune

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