mea-1 (methyl ammonium resistant) confers resistance to 50 mM methylamine in nitrate medium. It maps in the vicinity of acr-3 in IL, as indicated in a cross of un-16 acr-3 x mea-1. Scoring was done with 103 un+ spores.
Parental Simple recombination
( + + mea ) 86 percentages were:
un-mea 13.6
Single crossovers un-acr 10.7
( + + + ) 6 acr-mea 8.7
( + acr + ) 8
Double crossovers
( + acr mea ) 3