Close Linkage between Mutations with Similar Effects

Abstract

The mutations involved are T. dominant brachyury, tail short or absent and varying different stocks, occasional fused or reduced vertebrae, and with TT lethal; Fu (= Tf) dominant fused, fused and reduced vertebrae, moderately shortened, and with FuFu viable; Ki, dominant kink, with effect like Fu, and KiKi lethal; to, recessive lethal, and Tto tailless; tl recessive lethal, and Ttl tailless. Ki and Fu often show choroic behavior not found with the others. Crossovers have been found between T and Fu, between T and Ki and between Fu and Ki. They are probably all within 3 crossover units. T, t o and t i appear to be at the same locus.