Fungal Genome Size Database

This page provides summary of the data currently available.

We will periodically update the database. We appreciate receiving published offprints, preprints, and personal communications providing C-value estimates for fungi.

Please send DNA C-value data to Dr. Bellis Kullman at the Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences
Kreutzwaldi St. 1
51014 Tartu

    Fax: + 372 7 383 013
    E-mail: bellis[at]

Estimation Methods:

  • CS = Complete genome Sequencing
  • PFGE = Pulsed Field Gel Electrophoresis
  • CHEF = Contour clamped Homogeneous Electric Field gel electrophoresis
  • FC = Flow Cytometry (Flow Microfluorometry, Flow Microfluorimetry, Fluorescence-Activated Cell Sorting, a cytophotometry technique). Technique using an instrument system for making, processing, and displaying one or more measurements on individual cells or nuclei obtained from a suspension. Cells are usually stained with one or more fluorescent dyes specific to cell components of interest, e.g., DNA, and fluorescence of each cell is measured as it rapidly transverses the excitation beam (laser or mercury arc lamp). Fluorescence provides a quantitative measure of various biochemical and biophysical properties of the cell, as well as a basis for cell sorting. Other measurable optical parameters include light absorption and light scattering, the latter being applicable to the measurement of cell size, shape, density, granularity, and stain uptake (a cytophotometry technique).
  • PI-FC = Flow Cytometry, stained with Propidium Iodide
  • DAPI-FC = Flow Cytometry, stained with DAPI
  • PC = Photometric Cytometry (classical cytophotometry technique, microscope with a photometer)
  • Fe-PC = microspectrophotometry, stained with Feulgen, measuring light absorption
  • Fl-PC = Photometric Cytometry, stained with Fluorochrome, measuring the light intensities
  • IC = Image Cytometry (a cytophotometry technique, an image analysis system which grabs images from the microscope via a digital camera, and calculates intensity or optical density from the grey values of pixels in the nucleus (see Hardie et al., 2002).
  • Fe-IC = Image Cytometry, stained with Feulgen, measuring light absorption (also called optical density, OD)
  • Fl-IC = Image Cytometry, stained with Fluorochrome, measuring the light intensities
  • NS = Not Specified

Cell types:

  • FB = Fruit Body
  • PC = Pure Culture
  • S = Spores
  • C = Conidia
  • N = intact Nuclei
  • V = Various
  • NS = Not Specified

Standards and C-value for standards in Mb:

  • SC = Saccharomyces cerevisiae, strain YAC M3 (13.10502 Mbp, method CS);
  • ME-7 = Morchella esculenta REG (Weber 7) (25.7 Mbp, adjusted to 48.83 Mbp (see NOTICE! 20150120T1730GMT/UTC+2);
  • Glycine max (1.134 pg (Greilhuber and Obermayer, 1997)).

Number of base pairs = mass in pg x 0.978 x 109

(Dolezel et al., 2003).
  • 1pg = 978 Mbp
  • C-value in Mpb = 978 x C-value in pg
  • C-value in pg = C-value in Mbp / 978

  • Kullman, B.; Tamm, H.; Kullman, K. (2011). Fungal Genome Size Database. NAR Molecular Biology Database Collection entry number 955. Nucleic Acids Research, 39 (November) 955.
  • Gregory, T.R.; Nicol, J.A.; Tamm, H.; Kullman, B.; Kullman, K.; Leitch, I.J.; Murray, B.G.; Kapraun, D.F.; Greilhuber, J.; Bennett, M.D. (2007). Eukaryotic genome size databases. Nucleic Acids Research, (Database issue), D332 - D338.
  • Dolezel, J., Bartos, H., Voglmayr, J. and Greilhuber, J. 2003. Nuclear DNA content and genome size of trout and human. Cytometry 51A(2), 127-128. See also
  • Greilhuber, J. and Obermayer, R. 1997. Genome size variation and maturity group in the soybean, Glycine max. In: Lelley T (Ed.) International symposium on current topics in plant cytogenetics related to plant improvement. Tulln, Austria, February 21-22, 1997.
  • Kullman, B. 2000. Application of flow cytometry for measurement of nuclear DNA content in fungi. Folia Cryptog. Estonica 36 : 31-46.
  • Kullman, B. & Teterin, W. 2006. Estimation of fungal genome size: comparison of image cytometry and photometric cytometry. Fol. Cruptog. Estonica 42: 43-56.
  • Hardie, D.C., Gregory, T.R. and Heber, P. D.N. 2002. From Pixels to Picograms: A Beginners Guide to Genome Quantification by Feulgen Image Analysis Densitometry. J. Histochem. Cytochem. 50: 735 - 750. []
  • Weber, E. 1992. Untersuchungen zu Fortpflanzung und Ploidie verschiedener Ascomyceten. Biblioth. Mycol. 140: 1-186.