In the dosage compensation pathway, no homolog of genes msl1 and msl2 were found while the one of the rest three genes m在剂量补偿途径中，3个基因msl3、mle和mof在家蚕中具有同源体，msl1和msl2基因在家蚕没有同源体，这进一步证明了家蚕缺乏剂量补偿机制；