Year-end Sale % OFF 
Abstract
We cloned a gene encoding the succinate dehydrogenase iron-sulfur protein subunit (sip) from a bipolar mushroom, Pholiota microspora, and introduced a point mutation that confers carboxin resistance into this gene. Using this homologous selective marker and also a heterologous drug selective marker, the hygromycin B phosphotransferase gene (hph), we successfully constructed a DNA-mediated transformation system in P. microspora. Both these selection markers have high transformation efficiency: the efficiency of carboxin resistance transformation was about 88.8 transformants/μg pMBsip2 DNA using 5×106 protoplasts in regeneration plates containing 1.0μg/ml carboxin, and the efficiency of hygromycin B resistance transformation was about 122.4 transformants/μg pMBhph1 DNA using 5×106 protoplasts in regeneration plates containing 150μg/ml hygromycin B. Southern hybridization analysis showed that the introduced sequence (mutant sip or hph) was integrated into the chromosomal DNA in these transformants with a copy number of one or more.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
