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Intergeneric transfer of streptomycin-resistance marker between two blue-green algae

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Abstract

Intergeneric transfer of streptomycin-resistance marker from a unicellular blue-green algaAnacystis nidulans to a filamentous blue-green algaAnabaena doliolum was demonstrated. Mutants ofA. nidulans resistant to streptomycin, occurring spontaneously or mutagenically-induced could be isolated easily. Naturally occurring streptomycin-resistant mutants ofA. doliolum could not be detected. Attempts at isolating such mutants either in nitrogen-free medium or in nitrate containing medium were unsuccessful. However, a streptomycin-resistant strain (recombinant) ofA. doliolum could be isolated in a mixed culture of streptomycin-sensitiveA. doliolum and streptomycin-resistantA. nidulans.

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Correspondence to H D Kumar.

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Kumar, H.D., Tyagi, M.B. Intergeneric transfer of streptomycin-resistance marker between two blue-green algae. Proceedings of the Indian Academy of Sciences - Section B 87, 225–230 (1978). https://doi.org/10.1007/BF03178985

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Keywords

  • Intergeneric-cross
  • streptomycin-resistance
  • Anabaenadoliolum
  • Anacystis nidulans
  • genetic recombination