1887

Abstract

SUMMARY: When the two heterothallic species and are crossed, two types of viable ascospores are recovered. The first, the mature black ascospore, is produced with a mature eight-spored ascus formed from an intraspecific fusion of nuclei of the same mating type. The second, the non-pigmented germinable ascospore, is produced by the interspecific fusion of nuclei of opposite mating types within an ascus in which all other ascospores are aborted. The non-pigmented ascospore is the product of the mixed genomes of the two species. It is a recombinant spore from which either species may be obtained by the partial substitution of its genome through successive backcrosses. Its inability to develop pigmentation, the irregular growth patterns of some of the strains which it produces and their inability to react in complementation tests, appear to be the result of a lack of affinity between the two species.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-59-3-359
1969-12-01
2022-01-22
Loading full text...

Full text loading...

/deliver/fulltext/micro/59/3/mic-59-3-359.html?itemId=/content/journal/micro/10.1099/00221287-59-3-359&mimeType=html&fmt=ahah

References

  1. Dodge B. O. 1928; Production of fertile hybrids in the ascomycete Neurospora.. J. agric. Res 36:1
    [Google Scholar]
  2. Dodge B. O. 1931; Inheritance of the albinistic non-conidial characters in interspecific hybrids in Neurospora.. Mycologia 23:1
    [Google Scholar]
  3. Dodge B. O. 1936; Interspecific hybrids involving factors for ascus abortion in Neurospora.. Am. J. Bot 23:555
    [Google Scholar]
  4. Fields W. G. 1963; Genetic investigation in the Sordaria heterothallis complex.. Ph.D. Thesis.: Wayne State University, Detroit, Michigan, U.S.A.;
    [Google Scholar]
  5. Fields W. G. 1968; A new species of Sordaria.. Mycologia 60:1117
    [Google Scholar]
  6. Fields W. G., Maniotts J. 1963; Some cultural and genetic aspects of a new heterothallic Sordaria.. Am. J. Bot 50:80
    [Google Scholar]
  7. Fincham J. R. S. 1951; A comparative genetic study of the mating type chromosomes of two species of Neurospora.. J. Genet 50:221
    [Google Scholar]
  8. Lewis L. A. 1968a; Genetics of an interspecific cross in the genus Sordaria. . Genetics, Princeton 60:197 (Abstr.)
    [Google Scholar]
  9. Lewis L. A. 1968b Genetics of an interspecific cross in the genus Sordaria. Ph.D. Thesis.: Columbia University, New York, U.S.A.;
    [Google Scholar]
  10. Lewis L. A. 1969; Genetics of an interspecific cross in the genus Sordaria I. Analysis of 8-spored asci homozygous for the mating-type factor.. Genetics, Princeton (in the Press).
    [Google Scholar]
  11. Ptitenger T. H. 1954; The general incidence of pseudo-wild types in Neurospora crassa. . Genetics, Princeton 39:326
    [Google Scholar]
  12. Scott-Emuakpor M. B. 1965; Genetic recombination in Neurospora crassa and N. sitophila. . Genet. Res. 6:216
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-59-3-359
Loading
/content/journal/micro/10.1099/00221287-59-3-359
Loading

Data & Media loading...

Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error