Current Genetics

, Volume 60, Issue 3, pp 183–191 | Cite as

Selection and characterization of promoters based on genomic approach for the molecular breeding of oleaginous fungus Mortierella alpina 1S-4

  • Tomoyo Okuda
  • Akinori Ando
  • Eiji Sakuradani
  • Hiroshi Kikukawa
  • Nozomu Kamada
  • Misa Ochiai
  • Jun Shima
  • Jun OgawaEmail author
Research Article


To express a foreign gene effectively, a good expression system is required. In this study, we investigated various promoters as useful tools for gene manipulation in oleaginous fungus Mortierella alpina 1S-4. We selected and cloned the promoter regions of 28 genes in M. alpina 1S-4 on the basis of expression sequence tag abundance data. The activity of each promoter was evaluated using the β-glucuronidase (GUS) reporter gene. Eight of these promoters were shown to enhance GUS expression more efficiently than a histone promoter, which is conventionally used for the gene manipulation in M. alpina. Especially, the predicted protein 3 and the predicted protein 6 promoters demonstrated approximately fivefold higher activity than the histone promoter. The activity of some promoters changed along with the cultivation phase of M. alpina 1S-4. Seven promoters with constitutive or time-dependent, high-level expression activity were selected, and deletion analysis was carried out to determine the promoter regions required to retain activity. This is the first report of comprehensive promoter analysis based on a genomic approach for M. alpina. The promoters described here will be useful tools for gene manipulation in this strain.


Mortierella alpina Promoter Expression sequence tag Gene manipulation 



This work was partially supported by the Program for Promotion of Basic and Applied Researches for Innovations in Bio-oriented Industry (BRAIN) to J.O.; Advanced Low Carbon Technology Research and Development Program (ALCA) to J.S.; Grants-in-Aid for Scientific Researches (no. 22380051) from the Ministry of Education, Science, Sports, and Culture of Japan to E.S.; and Institute for Fermentation, Osaka (IFO).

Supplementary material

294_2014_423_MOESM1_ESM.doc (41 kb)
Supplementary material 1 (DOC 41 kb)


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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Tomoyo Okuda
    • 1
  • Akinori Ando
    • 1
    • 2
  • Eiji Sakuradani
    • 1
  • Hiroshi Kikukawa
    • 1
  • Nozomu Kamada
    • 3
  • Misa Ochiai
    • 3
  • Jun Shima
    • 4
  • Jun Ogawa
    • 1
    Email author
  1. 1.Division of Applied Life Sciences, Graduate School of AgricultureKyoto UniversityKyotoJapan
  2. 2.Research Unit for Physiological ChemistryKyoto UniversityKyotoJapan
  3. 3.Research Institute, Suntory Global Innovation Center Ltd.OsakaJapan
  4. 4.Research Division of Microbial Sciences Kyoto UniversityKyotoJapan

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