Along 8km extent of the river down from the dam of Zhexi Reservoir in Hunan Province,the population of an insect named Amphipsyche proluta MacLachlan has been rising in great quantities every year.Based on previous re...Along 8km extent of the river down from the dam of Zhexi Reservoir in Hunan Province,the population of an insect named Amphipsyche proluta MacLachlan has been rising in great quantities every year.Based on previous reports on the life history and living habits of this caddisfly, the ecological characteristics of this insect, including its water environment for living, reaction to flowing speed and depth of water, its natural enimies situation,and influence from haman activities,are described specially in this paper.It provides theoretical basis for following study on the integrated management of this insect.展开更多
在安徽升金湖中首次发现了角壳网纹溞。利用特异性分子标记,对角壳网纹溞的16S r DNA和COI基因进行了PCR扩增和测序,并进行了相关的分子遗传学分析。结果表明:角壳网纹溞的16S r DNA和COI基因中A+T含量均超过60%,明显高于C+G的含量。角...在安徽升金湖中首次发现了角壳网纹溞。利用特异性分子标记,对角壳网纹溞的16S r DNA和COI基因进行了PCR扩增和测序,并进行了相关的分子遗传学分析。结果表明:角壳网纹溞的16S r DNA和COI基因中A+T含量均超过60%,明显高于C+G的含量。角壳网纹溞不仅在形态上与其他同属种类相差校大,在分子进化中也与其他同属种类的遗传距离相差较大。通过K—2P双参数模型计算,角壳网纹溞COI基因的种间平均遗传距离高达20%,种间遗传距离的范围为16.7%—23.9%。因此,结合其形态学和分子遗传学的特征暗示角壳网纹溞的进化地位应为网纹溞属中一个相对独立的分支。展开更多
文摘Along 8km extent of the river down from the dam of Zhexi Reservoir in Hunan Province,the population of an insect named Amphipsyche proluta MacLachlan has been rising in great quantities every year.Based on previous reports on the life history and living habits of this caddisfly, the ecological characteristics of this insect, including its water environment for living, reaction to flowing speed and depth of water, its natural enimies situation,and influence from haman activities,are described specially in this paper.It provides theoretical basis for following study on the integrated management of this insect.
文摘在安徽升金湖中首次发现了角壳网纹溞。利用特异性分子标记,对角壳网纹溞的16S r DNA和COI基因进行了PCR扩增和测序,并进行了相关的分子遗传学分析。结果表明:角壳网纹溞的16S r DNA和COI基因中A+T含量均超过60%,明显高于C+G的含量。角壳网纹溞不仅在形态上与其他同属种类相差校大,在分子进化中也与其他同属种类的遗传距离相差较大。通过K—2P双参数模型计算,角壳网纹溞COI基因的种间平均遗传距离高达20%,种间遗传距离的范围为16.7%—23.9%。因此,结合其形态学和分子遗传学的特征暗示角壳网纹溞的进化地位应为网纹溞属中一个相对独立的分支。
