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题名: MOLECULAR PHYLOGENY AND HOST SPECIFICITY OF THE LARVAL EUSTRONGYLIDES (NEMATODA: DIOCTOPHMIDAE) FROM FRESHWATER FISH IN CHINA
作者: Xiong, Fan; Li, Wen X.; Wu, Shan G.; Zou, Hong; Wang, Gui T.2
通讯作者: Wang, GT (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.
关键词: INTERNAL TRANSCRIBED SPACER ; RIBOSOMAL DNA ; PARASITES ; DIOCTOPHYMATOIDEA ; SPECIALIZATION ; INFECTIONS ; IGNOTUS ; RIVER ; L.
刊名: JOURNAL OF PARASITOLOGY
发表日期: 2013-02-01
DOI: 10.1645/GE-3163.1
卷: 99, 期:1, 页:137-144
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China; [Wang, Gui T.] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: earmarked fund for China Agriculture Research System [CARS-46-08]; State Key Laboratory of Freshwater Ecology and Biotechnology [2011FB07]; National Natural Science Foundation of China [31172409]
类目[WOS]: Parasitology
研究领域[WOS]: Parasitology
摘要: The nematodes Eustrongylides spp. collected from different fish species in China were examined for their intra-and interspecific evolutionary variations using the molecular markers mitochondrial cytochrome oxidase c subunit 1 (COI) gene and internal transcribed spacer (ITS) rDNA regions. The phylogenetic analysis indicated that Eustrongylides species are divided into 3 well-supported clades. The ITS divergence between the clades suggested that clades 2 and 3 might represent the same species, whereas clade 1 represent another cryptic species. The host specificity of these nematodes was analyzed according to prevalence data, host range, and phylogenetic information. Clade 1 was found in 4 fish species, i.e., Odontobutis obscurus, Silurus asotus, Culter mongolicus, and Acanthogobius flavimanus, but was predominant in the 2 perciform species, O. obscurus and A. flavimanus. Clade 2 was found in 3 fish species, Monopterus albus, Channa argus, and Channa asiatica, but was predominant in M. albus, reported to feed primarily on oligochaetes, the first intermediate host of Eustrongylides sp. Clade 3 was found in 9 species, but its low prevalence suggests accidental infection in all species. Although the larval nematode presented low host specificity, it exhibited some host preference.
英文摘要: The nematodes Eustrongylides spp. collected from different fish species in China were examined for their intra-and interspecific evolutionary variations using the molecular markers mitochondrial cytochrome oxidase c subunit 1 (COI) gene and internal transcribed spacer (ITS) rDNA regions. The phylogenetic analysis indicated that Eustrongylides species are divided into 3 well-supported clades. The ITS divergence between the clades suggested that clades 2 and 3 might represent the same species, whereas clade 1 represent another cryptic species. The host specificity of these nematodes was analyzed according to prevalence data, host range, and phylogenetic information. Clade 1 was found in 4 fish species, i.e., Odontobutis obscurus, Silurus asotus, Culter mongolicus, and Acanthogobius flavimanus, but was predominant in the 2 perciform species, O. obscurus and A. flavimanus. Clade 2 was found in 3 fish species, Monopterus albus, Channa argus, and Channa asiatica, but was predominant in M. albus, reported to feed primarily on oligochaetes, the first intermediate host of Eustrongylides sp. Clade 3 was found in 9 species, but its low prevalence suggests accidental infection in all species. Although the larval nematode presented low host specificity, it exhibited some host preference.
关键词[WOS]: INTERNAL TRANSCRIBED SPACER ; RIBOSOMAL DNA ; PARASITES ; DIOCTOPHYMATOIDEA ; SPECIALIZATION ; INFECTIONS ; IGNOTUS ; RIVER ; L.
语种: 英语
WOS记录号: WOS:000322520000023
ISSN号: 0022-3395
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19588
Appears in Collections:鱼类生物学及渔业生物技术研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
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