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首页> 外文期刊>Journal of Parasitology >FULL MITOCHONDRIAL GENOME AND NUCLEAR 18S RDNA SEQUENCES REFINE THE TAXONOMIC PLACEMENT OF CHOLEOEIMERIA TAGGARTI N. COMB. FROM THE PROSTATE OF ANTECHINUS FLAVIPES (YELLOW-FOOTED ANTECHINUS)
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FULL MITOCHONDRIAL GENOME AND NUCLEAR 18S RDNA SEQUENCES REFINE THE TAXONOMIC PLACEMENT OF CHOLEOEIMERIA TAGGARTI N. COMB. FROM THE PROSTATE OF ANTECHINUS FLAVIPES (YELLOW-FOOTED ANTECHINUS)

机译：全部线粒体基因组和核18S rDNA序列优化Choleoeimeria Taggarti N. Comp的分类管理。 来自前列腺素的前列腺（黄网的脚踏板）

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摘要

An unusual coccidian parasite was described previously from the prostate of a male Antechinus flavipes (family: Dasyuridae; common name: yellow-footed antechinus). Morphometrics and a partial nuclear 18S small subunit rDNA (18S rDNA) sequence were used to assign this parasite to the genus Eimeria; it was named Eimeria taggarti. We generated full nuclear 18S rDNA and mitochondrial genome sequences from this parasite and used the newly completed 18S rDNA and mitochondrial cytochrome c oxidase subunit I (COI) sequences to perform a more in-depth phylogenetic analysis. The parasite clustered closely with Choleoeimeria spp. and Acroeimeria spp. infecting herptiles in a well-supported Glade that was the sister lineage to the Eimeriidae sensu stricto. The mitochondrial genome of this parasite contained 2 inverted segments compared to mitochondrial genomes from parasites in the Eimeriidae sensu stricto (i.e., Stieda body-possessing coccidia with 4 dizoic sporocysts); this mitochondrial genome arrangement was shared with the only Choleoeimeria species for which sequence data were available publicly. Examination of histological preparations and TEM images uncovered bivalvate sporocysts and otherwise confirmed previously described morphological features of the parasite. Based on our phylogenetic analyses and histological observations, we propose the generic reclassification of E. taggarti to Choleoeimeria taggarti n. comb.
机译：一种不寻常的球虫寄生虫以前曾在一只雄性黄胸前棘（科：大尾鱼科；俗名：黄足前棘）的前列腺中被描述过。形态计量学和部分核18S小亚基rDNA（18S rDNA）序列用于将该寄生虫归入艾美耳球虫属；它被命名为艾美耳球虫。我们从这种寄生虫中产生了完整的核18S rDNA和线粒体基因组序列，并使用新完成的18S rDNA和线粒体细胞色素c氧化酶亚单位I（COI）序列进行了更深入的系统发育分析。该寄生虫与感染赫氏球虫的霍乱伊蚊属和顶球虫属紧密聚集在一片支持良好的林间空地上，这是严格意义上的艾美球虫科的姐妹谱系。该寄生虫的线粒体基因组包含2个倒置片段，与严格感球虫科寄生虫的线粒体基因组相比（即，具有球虫和4个二代孢子囊的柄虫体）；这一线粒体基因组安排仅与公开序列数据的霍乱伊蚊物种共享。组织学检查和TEM图像发现了双壳类孢子囊，并证实了之前描述的寄生虫形态特征。基于我们的系统发育分析和组织学观察，我们建议将塔加蒂大肠杆菌重新分类为塔加蒂霍乱伊蚊。

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