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根据rRNA基因ITS-2序列研究舌蝇属的种系发生 总被引:1,自引:0,他引:1
舌蝇又称采采蝇 ,是传播非洲锥虫病 (又称非洲睡眠病 )的重要媒介 .采用PCR方法得到的不同种采采蝇的核糖体DNA内部转录间隔序列 2 (ITS 2 )来分析采采蝇的种系发生 .用简约法 (parsimony)产生的进化树证实了所有采采蝇的单源种类发生并且表明Austenina亚属最早分化 ,然后依次是Glossina和Nemorhina亚属 .经典的形态和生化分类法对Glossinaausteni的进化地位一直有争议 .通过ITS 2位点序列的分析 ,认为G .austeni可以成为独立的亚属和Glossina亚属成为姊妹亚属关系 . 相似文献
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LONJINO M. OGWAL ANDREW KALYEBI JOHN B. KADDU 《Insect Science》2007,14(6):477-484
The diurnal activity patterns, trypanosome infection rates and movement of Glossinafuscipesfuscipes (Diptera: Glossinidae) were investigated in Buvuma Island, Lake Victoria, Uganda. Hourly trapping of tsetse flies was undertaken to determine their activity rhythm while a capture-mark-release-recapture method was conducted to assess the movement and dispersal of tsetse flies between lakeshore, hinterland and further inland sites along a transected area. Dissection of tsetse flies was also undertaken to determine the trypanosome infection rates in salivary glands, proboscis and mid-gut. Results indicated a bimodal diurnal activity profile for G. f fuscipes on the Island, both on the lakeshore and in the hinterland. Movement and dispersal of G. f fuscipes tsetse flies occurred between lakeshore, hinterland and further inland sites with a greater tendency of flies to move to the lakeshore. Trypanosome infection rates of 4.32% for Trypasoma vivax and 1.15% for 7. congolense were found in G. f. fuscipes. 相似文献
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