Summary
Five haploid amoebal strains of the myxomycete Physarum polycephalum, each with a distinct mitochondrial genotype, were crossed in all pairwise combinations. The mitochondrial genotype in the diploid plasmodia resulting from these isogamous matings were found to be transmitted uniparentally. This uniparental inheritance could be arranged in a dominant hierarchical order. Time-course analysis of the presence of mitochondrial genotypes in the zygotes and young developing plasmodial genotypes is virtually completed during the first two nuclear cycles in the zygote/differentiating plasmodium. To our knowledge this is the first report indicating an active mechanism involving the degradation of mitochondrial genomes in sexual crosses.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bailey J, Anderson RW, Dee J (1990) J Gen Microbiol 136:739–751
Bohnert HJ (1977) Exp Cell Res 106:426–430
Collins OR (1975) Mycologia 67:98–107
Collins OR, Tang HC (1977) Mycologia 69:421–423
Dee J (1966) J Protozool 13:610–616
Dee J (1987) Trends Genet 3:208–213
Dee J, Poulter RTM (1970) Genet Res 15:33–41
Hirt B (1967) J Mol Biol 26:365–369
Johansen T (1988) DNA Prot Eng Techn 1:57–59
Johansen T, Johansen S, Haugli F (1988) Curr Genet 14:265–273
Jones EP, Mahendran R, Spottswood MR, Yang YC, Miller DL (1990) Curr Genet 17:331–337
Kawano S, Kuroiwa T (1989) J Gen Microbiol 135:1559–1566
Kawano S, Anderson RW, Nanba T, Kuroiwa T (1987) J Gen Microbiol 133:3175–3182
Kirouac-Brunet J, Masson S, Pallotta D (1981) Can J Genet Cytol 23:9–16
Kuroiwa T (1985) Microbiol Sci 2:267–270
Kuroiwa T, Hori T (1986) Protoplasma 135:85–87
Lane EB and Carlile MJ (1979) J Cell Sci 35:339–354
Matagne RF (1987) Curr Genet 12:251–256
Mirfakhrai M, Tanaka Y, Yanagisawa K (1990) Genetics 124:607–613
Poulter RTM and Dee J (1968) Genet Res 12:71–79
Sager R, Lane D (1972) Proc Natl Acad Sci USA 69:2410–2413
Sager R, Sano H and Grabowy CT (1984) Curr Top Microbiol Immunol 108:157–173
Silliker ME, Collins OR (1988) Mol Gen Genet 213:370–378
Sodmergen, Kawano S, Tano S, Kuroiwa T (1989) Protoplasma 152:65–68
Sun GHR, Uyeda QPT, Kuroiwa T (1988) Protoplasma 144:185–188
Takano H, Kawano S, Suyama Y, Kuroiwa T (1990) Curr Genet 18:125–131
Upholt WB (1977) Nucleic Acids Res 5:1257–1265
Author information
Authors and Affiliations
Additional information
Communicated by D. R. Wolstenholme
Rights and permissions
About this article
Cite this article
Meland, S., Johansen, S., Johansen, T. et al. Rapid disappearance of one parental mitochondrial genotype after isogamous mating in the myxomycete Physarum polycephalum . Curr Genet 19, 55–59 (1991). https://doi.org/10.1007/BF00362088
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00362088