... Fukuoka, Japan3 Division of Insect Sciences, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan4 Agricultural Bioinformatics Research Unit, Graduate School of Agricultural and ... odour.One of the most intriguing features of the sku mutantis that the mature larva accumulates branched-chainamino a cids, leucine, isoleucine and valine, in haemolymphat levels 4 times higher in ... mutant exhibits abnormally high accumu-lations of branched-chain amino acids, includingleucine, in haemolymph [6]. From the second feature,it can be assumed that the branched-chain amino aciddegradation...