Microconidiation genotypes

locus: Microconidiation genotypes

locus_name: Microconidiation genotypes

organism_type: B

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cultural_requirements: Microconidia, being uninucleate, are valuable for such applications as somatic analysis and mutagenesis. They are much less abundant in the wild type than are multinucleate macroconidia, except under certain conditions (893). Several genotypes are known that increase the production of microconidia, notably, pe and dn, but these single-mutant strains also continue to produce macroconidia. A few microconidia, and no macroconidia, are produced by the single mutant strains fl and cpt, q.v.; large numbers can be obtained from fl strains under certain conditions (893). Large numbers of almost exclusively uninucleate microconidia can be obtained by using the double mutants pe fl or dn;fl, in which flblocks macroconidiation and the pe or dn component promotes microconidiation. dn;fl strains have the advantage over pe fl strains of greater fertility in homozygous crosses (806), but microconidia from dn;fl strains are less viable (454). Cultures abundantly producing only microconidia appear grey-brown rather than orange. See fl, dn, and pe. For colonial microconidiating strains, see col-1, col-4. See references 415 and 416 for other gene interactions.

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Strains

FGSC #	Reporting Genes	Species

References

Authors	Title	Year
Hedman, S. C. , and S. Vanderschmidt.	Germination of microconidia from selected Neurospora strains.	1981
Perkins, D. D.	A new, highly fertile microconidiating combination, dingy, fluffy.	1979
Rossier, C. , T. -C. Ton-That, and G. Turian.	Microcyclic microconidiation in Neurospora crassa.	1977