The Saccharomyces cerevisiae HIS3 and LYS2 genes complement the Schizosaccharomyces pombe his5-303 and lys1-131 mutations, respectively: new selectable markers and new multi-purpose multicopy shuttle vectors, pSP3 and pSP4.

The Saccharomyces cerevisiae HIS3 and LYS2 genes complement the Schizosaccharomyces pombe his5-303 and lys1-131 mutations, respectively: new selectable markers and new multi-purpose multicopy shuttle vectors, pSP3 and pSP4.