Open AccessA mating‐type‐specific sterility gene mapl is required for transcription of a mating‐type gene mat1 ‐Pi in the fission yeast Schizosaccharomyces pombe
Author(s) -
Fujioka Hiroshi,
Shimoda Chikashi
Publication year - 1989
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1989.tb03417.x
Subject(s) - schizosaccharomyces pombe , mating type , biology , schizosaccharomyces , genetics , gene , mating of yeast , mutant , meiosis , transcription (linguistics) , sterility , yeast , linguistics , philosophy
Transcriptional activation of the mating‐type gene mat1 ‐Pi essential for meiosis in the fission yeast Schizosaccharomyces pombe was studied. A homozygous diploid harboring the mutation at the h + ‐specific sterility gene, map1 , was arrested before premeiotic DNA synthesis in the nitrogen‐free sporulation medium. Transcription of mat1 ‐Pi was totally absent in the map1 mutant. The mei2 gene encoding a positive regulator for meiosis was normally transcribed in the map1 mutant, suggesting that the map1 function was specific to mat1 ‐Pi.