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REDESCRIPTION OF THELOHANELLUS WUHANENSIS XIAO ET CHEN (MYXOZOA, MYXOSPOREA) INFECTING ALLOGYNOGENETIC CRUCIAN CARP (CARASSIUS AURATUS GIBELIO) AND PHYLOGENIC ANALYSIS BASED ON 18S RDNA SEQUENCE
Author(s): 
Pages: 681-686
Year: Issue:  4
Journal: Acta Zootaxonomica Sinica

Keyword:  武汉单极虫 光镜 扫描电镜 形态学 18SrDNA;
Abstract: 通过光镜、扫描电镜和18SrDNA序列对比,对寄生于异育银鲫Carassius auratus gibelio体表的粘孢子虫进行了形态学和分子生物学研究,鉴定其为武汉单极虫Thelohanellus wuhanensis,并发现了形态学新特征:膜状鞘的起始位置不同,且仅包围孢子后部;壳瓣底部内侧具"V"形褶皱;一片壳瓣前端有突起结构;缝脊直,突出明显;测得极丝全长为158.5~179.2(170.7±5.7)μm。经18S rDNA序列对比,与T. wuhanensis[HQ613410]的相似率为99.87%。系统发育分析表明,单极虫与碘泡虫具有非常近的亲缘关系,将单极虫属与碘泡虫属二者归属于碘泡科的分类方法更合理。
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