Reappraisal of Hydatigera taeniaeformis (Batsch, 1786) (Cestoda: Taeniidae) sensu lato with description of Hydatigera kamiyai n. sp.
Reappraisal of Hydatigera taeniaeformis (Batsch, 1786) (Cestoda: Taeniidae) sensu lato with description of Hydatigera kamiyai n. sp.
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DOI：
10.1016/j.ijpara.2016.01.009
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发表时间：
2016-05-01
影响因子：
4
通讯作者：
Nakao, Minoru
中科院分区：
文献类型：
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作者：
Lavikainen, Antti;Iwaki, Takashi;Nakao, Minoru
常见的猫绦虫 Hydatigera taeniaeformis 是三个形态上神秘的实体的复合体，可以通过基因来区分。为了阐明隐秘谱系的生物地理学和宿主谱，利用部分线粒体细胞色素c氧化酶亚基1基因序列通过DNA条形码鉴定了来自欧亚大陆、非洲和澳大利亚的各种终宿主和中间宿主的150个带绦虫标本，并与之前发表的数据进行了比较。使用核 DNA 和线粒体基因组序列对选定的分离株进行了额外的系统发育分析。基于分子数据和形态分析，Hydatigera kamiyai n. sp。 Iwaki 被认为是一个神秘的谱系，该谱系主要是欧亚北部的，主要使用田鼠和黑线姬鼠属的小鼠作为中间宿主。 Hydatigera taeniaeformis sensu stricto (s.s.) 仅限于作为中间宿主的鼠科啮齿动物（大鼠和小鼠）。它可能起源于亚洲，但已传播到世界各地。尽管 H. taeniaeformis s.s. 之间存在显着的遗传差异。和H. kamiyai，种间形态差异仅在喙钩的尺寸上明显。第三个神秘谱系与 H. kamiyai 密切相关，但由于形态、分子、生物地理和生态数据有限，其分类地位仍未确定。这种 Hydatigera sp。仅限于地中海，其中间宿主未知。需要进一步研究对 Hydatigera sp. 进行分类。作为 H. kamiyai 的一个独特物种或变种。根据之前公布的有限数据，这三个实体都出现在美洲，可能是由于人类介导的引入所致。 (C) 2016 年澳大利亚寄生虫学会有限公司。由 Elsevier Ltd 出版。保留所有权利。
The common cat tapeworm Hydatigera taeniaeformis is a complex of three morphologically cryptic entities, which can be differentiated genetically. To clarify the biogeography and the host spectrum of the cryptic lineages, 150 specimens of H. taeniaeformis in various definitive and intermediate hosts from Eurasia, Africa and Australia were identified with DNA barcoding using partial mitochondrial cytochrome c oxidase subunit 1 gene sequences and compared with previously published data. Additional phylogenetic analyses of selected isolates were performed using nuclear DNA and mitochondrial genome sequences. Based on molecular data and morphological analysis, Hydatigera kamiyai n. sp. Iwaki is proposed for a cryptic lineage, which is predominantly northern Eurasian and uses mainly arvicoline rodents (voles) and mice of the genus Apodemus as intermediate hosts. Hydatigera taeniaeformis sensu stricto (s.s.) is restricted to murine rodents (rats and mice) as intermediate hosts. It probably originates from Asia but has spread worldwide. Despite remarkable genetic divergence between H. taeniaeformis s.s. and H. kamiyai, interspecific morphological differences are evident only in dimensions of rostellar hooks. The third cryptic lineage is closely related to H. kamiyai, but its taxonomic status remains unresolved due to limited morphological, molecular, biogeographical and ecological data. This Hydatigera sp. is confined to the Mediterranean and its intermediate hosts are unknown. Further studies are needed to classify Hydatigera sp. either as a distinct species or a variant of H. kamiyai. According to previously published limited data, all three entities occur in the Americas, probably due to human-mediated introductions. (C) 2016 Australian Society for Parasitology Inc. Published by Elsevier Ltd. All rights reserved.