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The Schizosaccharomyces pombe cfr1 + gene participates in mating through a new pathway that is independent of fus1 +
Author(s) -
CartagenaLirola Hugo,
Durán Ángel,
Valdivieso M.Henar
Publication year - 2006
Publication title -
yeast
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.923
H-Index - 102
eISSN - 1097-0061
pISSN - 0749-503X
DOI - 10.1002/yea.1361
Subject(s) - schizosaccharomyces pombe , biology , schizosaccharomyces , yeast , mating , cell fusion , mating type , mutant , gene , mating of yeast , fission , genetics , microbiology and biotechnology , cell , saccharomyces cerevisiae , physics , quantum mechanics , neutron
Conjugation is a complex event directed to ensure the transfer of genetic material, which is achieved by the union of two cells. In fungi, success of this relevant process requires digestion of the cell wall at the point where both cells have agglutinated and, later, the union of the plasma membranes and nuclei from the mating partners. In order to gain information about cell fusion, we have cloned and disrupted the cfr1 + gene from the fission yeast Schizosaccharomyces pombe . cfr1 + gene is slightly induced at the beginning of mating but Cfr1p protein is degraded soon after the cells are transferred to nitrogen‐lacking medium. cfr1 Δ mutants present a defect in cell fusion owing to a failure in the digestion of the cell walls between the two parental cells. Finally, cytological and genetic analyses show that cfr1 + acts in a new pathway involved in conjugation that is independent of fus1 + , the only gene that has been found to be specifically required for cell fusion during mating in the fission yeast. Copyright © 2006 John Wiley & Sons, Ltd.