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首页> 外文期刊>Parasitology >Mitochondrial DNA dataset suggest that the genus Sphaerirostris Golvan, 1956 is a synonym of the genus Centrorhynchus Luhe, 1911
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Mitochondrial DNA dataset suggest that the genus Sphaerirostris Golvan, 1956 is a synonym of the genus Centrorhynchus Luhe, 1911

机译:线粒体DNA数据集表明,Sphaerirostris Golvan,1956年是Centrorhynchus Luhe,1911年的同义词

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摘要

Our present genetic data of Acanthocephala, especially the mitochondrial (mt) genomes, remains very limited. In the present study, the nearly complete mt genome sequences of Sphaerirostris lanceoides (Petrochenko, 1949) was sequenced and determined for the first time based on specimens collected from the Indian pond heron Ardeola grayii (Sykes) (Ciconiiformes: Ardeidae) in Pakistan. The mt genome of S. lanceoides is 13 478bp in size and contains 36 genes, including 12 protein-coding genes (PCGs), 22 transfer RNA genes (tRNAs) and two ribosomal RNA genes (rRNAs). Moreover, in order to clarify the phylogen-etic relationship of the genera Centrorhynchus and Sphaerirostris, and to test the systematic position of S. lanceoides in the Centrorhynchidae, the phylogenetic analyses were performed using Bayesian inference and maximum likelihood methods, based on concatenated nucleo-tide sequences of 12 PCGs, rRNAs and tRNAs. The phylogenetic results further confirmed the monophyly of the order Polymorphida and the paraphyly of the order Echinorhynchida in the class Palaeacanthocephala. Our results also challenged the validity of the genus Sphaerirostris (Polymorphida: Centrorhynchidae) and showed a sister relationship between S. lanceoides and S. picae (Rudolphi, 1819).
机译:我们目前关于棘头类的遗传数据,尤其是线粒体(mt)基因组,仍然非常有限。在本研究中,根据从巴基斯坦的印度池鹭Ardeola grayii(Sykes)(蝉形目:鹭科)采集的标本,首次对几乎完整的披针形石(Sphaerirostris lanceides,Petrogenko,1949)mt基因组序列进行了测序和测定。杉木的mt基因组大小为13478bp,包含36个基因,包括12个蛋白质编码基因(PCGs)、22个转移RNA基因(tRNA)和两个核糖体RNA基因(rRNA)。此外,为了阐明狼尾草属和狼尾草属的系统发育关系,并测试狼尾草在狼尾草科中的系统位置,基于12个PCGs、rRNAs和tRNAs的串联核苷酸序列,采用贝叶斯推断和最大似然法进行了系统发育分析。系统发育的结果进一步证实了多形目的单系性和棘突目在Palaaccanthocephala类中的近系性。我们的结果还质疑了Sphaerirostris属(多形目:中心棘科)的有效性,并显示了柳叶钩虫和异食钩虫之间的姐妹关系(Rudolphi,1819)。

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