Search for age-dependent as compared to mutagen-induced mutations on the X-chromosome affecting viability in Drosophila melanogaster males T. BJÖRKLUND, G. ENGSTRÖM, Trudy McKAY and L. E. LILJEDAHLGenet. Sel. Evol., 20 4 (1988) 409-416DOI: https://doi.org/10.1051/gse:19880401