寡毛类纤毛虫变游虫新属的建立及基尔变游虫(新属,新组合)的形态学重描述与系统地位分析(英文)  

THE ESTABLISHMENT OF A NEW OLIGOTRICH GENUS VARISTROMBIDIUM GEN.NOV.AND THE MORPHOLOGY AND PHYLOGENY OF A MARINE CILIATE,VARISTROMBIDIUM KIELUM(MAEDA AND CAREY,1985)NOV.COMB.(PROTISTA,CILIOPHORA)

作　　者：徐大鹏[1,2] 孙萍[1,2] JohnC.CLAMP 马洪钢[1] 宋微波[1] 

机构地区：[1]中国海洋大学生物多样性与进化研究所原生动物学研究室,青岛2660032 [2]Department of Biology,North Carolina Central University

出　　处：《动物分类学报》2011年第3期502-511,共10页Acta Zootaxonomica Sinica

基　　金：supported by the National Natural Science Foundation of China(31030059)

摘　　要：利用蛋白银染色技术对采自青岛沿海砂隙的寡毛类纤毛虫Strombidium kielum进行了形态学重描述,发现该种在寡毛类纤毛虫中具有独一无二的纤毛下器模式,因此为其建立了1新属Varistrombidium,特征为具有5条斜穿虫体的体动基列,其中体动基列1和2延伸到虫体背部,终止于虫体尾端。对Varistrombidium kielum(Maeda&Carey,1985)nov.comb.的小亚基RNA序列分析表明,该种位于Strombidiidae科内,与其形态学相近种Omegastrombidium elegans聚在一起。同时对其小亚基RNA序列可变区2的二级结构进行了预测并与其形态学相似种进行了比较。还对Apostrombidium pseudokielum Xuet al.,2009进行了补充性描述。A Chinese population of the oligotrich ciliate Strombidium kielum Maeda Carey,1985 was discovered in sand on the coast of Qingdao,China,and an analysis of morphological data from live cells and protargol preparations allowed this poorly described species to be redefined.A unique,heretofore undescribed pattern of somatic ciliation was discovered that revealed this species to be separated from other taxa in its family at the generic level.Therefore,it was assigned to the new genus Varistrombidium,which is characterized by possession of 5 somatic kineties that run obliquely across the ventral side of the cell and having somatic kineties 1 and 2 extending to the dorsal side and ending at the caudal area.Also,the secondary structure of variable region 2 of SSrRNA gene in V.kielum was predicted and compared with its morphologically similar congeners.Furthermore,some supplementary data of Apostrombidium pseudokielum Xu et al.,2009,a newly reported organism,is also provided.

关 键 词：小亚基RNA 二级结构 黄海 中国 

分 类 号：Q959.11[生物学—动物学]