对寄生于大亚湾黑鲷(Acanthopagrus schlegeli)体表的鲷无胄虫(Anoplodiscus spari)进行了形态描述,并扩增了该虫的28S r DNA C1-D2区部分序列,构建了相关类群的分子系统树,探讨了无胄虫科的分类地位。结果显示:所获标本与Ogawa等的描...对寄生于大亚湾黑鲷(Acanthopagrus schlegeli)体表的鲷无胄虫(Anoplodiscus spari)进行了形态描述,并扩增了该虫的28S r DNA C1-D2区部分序列,构建了相关类群的分子系统树,探讨了无胄虫科的分类地位。结果显示:所获标本与Ogawa等的描述基本一致,但交接管基部及末端位置略有不同:本研究标本的交接管基部始于支持器的下方、末端于支持器三分叉的中支略伸出,而Ogawa等的标本交接管基部靠近支持器三叉处、末端从三叉处延伸并略弯曲;无胄虫属(Anoplodiscus)为单系起源,隶属于指环虫目、四钩虫亚目、无胄虫科(Anoplodiscidae),无胄虫科是一独立的科,在分类地位上与四钩虫科(Tetraonchidae)互为姐妹群,与Udonellidae科和微沟科(Microbothriidae)的关系较远。展开更多
Fragments of nuclear ribosomal 28S rDNA D2 divergent domain, mitochondrial 16S rDNA, and COI partial genes of 15 species in the subgenus Singhardina Mahmood from China were amplified and sequenced. Molecular phylogene...Fragments of nuclear ribosomal 28S rDNA D2 divergent domain, mitochondrial 16S rDNA, and COI partial genes of 15 species in the subgenus Singhardina Mahmood from China were amplified and sequenced. Molecular phylogenetic trees were constructed using maximum parsimony, maximum likelihood and Bayesian inference methods. Results from these methods revealed similar topologies with recognizable relationships among subclades. The phylogenetic relationship of four species groups of subgenus Singhardina Mahmood from China is discussed for the first time. The results show that Singhardina Mahmood forms a single lineage representing a monophyletic group. The Eurhadina （Singhardina） rubra species group newly proposed in this study is likely the most basal species group within Singhardina Mahmood. The E. （Singhardina） robusta species group is the sister group of the E. （Singhardina） mamata species group. Molecular evidence supports including the E. （Singhardina） vittata species group in the E. （Singhardina） punjabensis species group.展开更多
文摘对寄生于大亚湾黑鲷(Acanthopagrus schlegeli)体表的鲷无胄虫(Anoplodiscus spari)进行了形态描述,并扩增了该虫的28S r DNA C1-D2区部分序列,构建了相关类群的分子系统树,探讨了无胄虫科的分类地位。结果显示:所获标本与Ogawa等的描述基本一致,但交接管基部及末端位置略有不同:本研究标本的交接管基部始于支持器的下方、末端于支持器三分叉的中支略伸出,而Ogawa等的标本交接管基部靠近支持器三叉处、末端从三叉处延伸并略弯曲;无胄虫属(Anoplodiscus)为单系起源,隶属于指环虫目、四钩虫亚目、无胄虫科(Anoplodiscidae),无胄虫科是一独立的科,在分类地位上与四钩虫科(Tetraonchidae)互为姐妹群,与Udonellidae科和微沟科(Microbothriidae)的关系较远。
基金supported by"The National Natural Science Foundation of China" (No. 30770262)"The Ministry of Science and Technology of the People's Republic of China " (No. 2006FY120100)partly by "Northwest A&F University Grants for Outstanding Young Faculty Members" (No.Z111020905)
文摘Fragments of nuclear ribosomal 28S rDNA D2 divergent domain, mitochondrial 16S rDNA, and COI partial genes of 15 species in the subgenus Singhardina Mahmood from China were amplified and sequenced. Molecular phylogenetic trees were constructed using maximum parsimony, maximum likelihood and Bayesian inference methods. Results from these methods revealed similar topologies with recognizable relationships among subclades. The phylogenetic relationship of four species groups of subgenus Singhardina Mahmood from China is discussed for the first time. The results show that Singhardina Mahmood forms a single lineage representing a monophyletic group. The Eurhadina （Singhardina） rubra species group newly proposed in this study is likely the most basal species group within Singhardina Mahmood. The E. （Singhardina） robusta species group is the sister group of the E. （Singhardina） mamata species group. Molecular evidence supports including the E. （Singhardina） vittata species group in the E. （Singhardina） punjabensis species group.
