蚕丝业在国民经济中占有极为重要的地位.家蚕作为重要的模式生物和生物反应器,历来为人们所关注.有关蚕丝基因的结构、表达调控和分子进化都已有较详细的研究和报道,但关于蚕丝结构基因的分子细胞遗传学基因定位的研究,几乎尚无报道.经用荧光原位杂交技术（fluorescence in situ hybridization,FISH）对家蚕丝心蛋白H链基因（Fib-H）的分子细胞遗传学定位研究结果,初步将家蚕丝心蛋白H链基因定位在了分子细胞遗传学第25连锁群染色体的端部,即25～0.0的位置,从而解决了该基因迄今尚未定位的问题,并证实了丝心蛋白H链基因在染色体位置上为单一座位.
The sericulture industry plays a very important role in our national economy. Silkworm (Bombyx mori) is always regarded as a model animal and biological reactor. There have been detailed studies on the structure, expression and control and molecular evolution of silk genes. However, few, if any, reports are available on the localization of structural genes in silkworm by molecular cytogenetics. The present experiment has tentatively localized the Fib-H gene at the distal end of the 25th linkage group, namely at the 25-0.0 position, and verified that Fib-H has only one locus, thus providing a temporary solution to the problem about its localization.
宋方洲张平波易发平洪锡钧鲁成Yutaka BannoHiroshi FujiiKatsumi Koga
