【摘要】 为进一步探讨家蚕的起源分化和其系统发育,为家蚕遗传育种提供科学依据,利用AFLP技术和统计学分析对具有代表性的9个不同的地区家蚕品种进行了分子系统学研究。家蚕的DNA多态性分析及其聚类分析结果进一步证实家蚕可能起源于不同地方(多起源中心)、由多种生态类型(包括一化、二化、多化)混杂的野桑蚕驯化而来,其驯化之初就已拥有一化、二化、多化的遗传背景,而且一化和二化品种间的遗传距离小,分化程度小,表明它们应该有共同的起源中心。更多还原

【Abstract】 The evolution of 9 representative domestic silkworm was studied by AFLP technique and statistical methods in the paper.The view was confirmed that domestic silkworm originated from mulberry wild silkworm in diffferent regions with many ecological types(including monovoltinism,bivoltinisms and multivoltinism),which had a complex hereditary background before being domesticated.Furthermore,there was a lower genetic distance between monovoltinism and bivoltinisms,which showed that they probably originated from the same resources center.更多还原