Chemical mutagens
- The number of chemical mutagens is numerous and continuously increasing. But for mutation inductin in cultivated plants only a few are readily very useful and most of them belong to the special class of alkylating agents such as, ethyl methane sulhonate (EMS), diethyl sulfate (dES), ethyleneimine (EI), ethyl nitroso urethane (ENU), ethyl nitroso urea (ENH), and methyl nitroso urea (MNH).
Group of mutagen
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Name of chemical
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Mode of action
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Alkylating agents
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Ethyl methane sulphonate Methyl methane sulphonate Ethyl ethane sulphonate
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AT GC transitions Transitions GC AT transitions
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Base analogues
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5 bromo uracil 2 amino purine
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AT GC transitions GC AT transitions
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Acridine dyes
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Acriflavin, proflavin
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Deletion and addition
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Others
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Nitrous acid Hydroxylamine Sodium azide
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AT GC transitions GC AT transitions Transitions
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Last modified: Monday, 2 April 2012, 9:02 PM