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The complete mitochondrial genome of Prosthogonimus cuneatus and Prosthogonimus pellucidus (Trematoda: Prosthogonimidae), their features and phylogenetic relationships in the superfamily Microphalloidea

文献类型： 外文期刊

作者： Guo, Xin-ru 1 ; Li, Ye 2 ; Gao, Yuan 1 ; Qiu, Yang-yuan 1 ; Jin, Zhen-hua 2 ; Gao, Zhong-yan 4 ; Zhang, Xian-guang 4 ; An, Qi 1 ; Chang, Qiao-cheng 1 ; Gao, Jun-feng 1 ; Wang, Chun-ren 1 ;

作者机构： 1.Heilongjiang Bayi Agr Univ, Coll Anim Sci & Vet Med, Heilongjiang Prov Key Lab Prevent & Control Bovin, Daqing 163319, Heilongjiang, Peoples R China

2.Heilongjiang Acad Agr Sci, Branch Anim Husb, Qiqihar 161005, Heilongjiang, Peoples R China

3.Heilongjiang Acad Agr Sci, Vet Branch, Qiqihar 161005, Heilongjiang, Peoples R China

4.Heilongjiang Zhalong Natl Nat Reserve Adm, Qiqihar 161005, Heilongjiang, Peoples R China

关键词： Prosthogonimus cuneatus; Prosthogonimus pellucidus; Prosthogonimidae; Mitochondrial genome; Sequence analysis; Phylogenetic analysis

期刊名称：ACTA TROPICA （ 影响因子：3.222； 五年影响因子：3.095 ）

ISSN： 0001-706X

年卷期： 2022 年 232 卷

页码：

收录情况： SCI

摘要： Prosthogonimus cuneatus and Prosthogonimus pellucidus (Trematoda: Prosthogonimidae) are common flukes of poultry and other birds which can cause severe impacts on animal health and losses to the poultry industry. However, there are limited studies on the molecular epidemiology, population genetics, and systematics of Prosthogonimus species. In the present study, the complete mitochondrial (mt) genomes of P. cuneatus and P. pellucidus were determined to be 14,829 bp and 15,013 bp in length, respectively. Both mt genomes contain 12 protein-coding genes (PCGs) (cox1-3, nad1-6, nad4L, cytb, and atp6), 22 transfer RNA genes, two ribosomal RNA genes, and one non-coding region. Our comparative analysis shows that the atp6 genes of P. cuneatus and P. pellucidus are longer than any previously published atp6 genes of other trematodes. The lengths of the atp6 genes of P. cuneatus and P. pellucidus in this study seem unusual, and should therefore be studied further. The mt genes of P. cuneatus and P. pellucidus are transcribed in the same direction, and the gene arrangements are identical to those of Plagiorchis maculosus, Tamerlania zarudnyi, and Tanaisia sp., but different from those of Eurytrema pancreaticum, Dicrocoelium chinensis, and Brachycladium goliath. The mt genome A + T contents of P. cuneatus and P. pellucidus are 64.47% and 65.34%, respectively. In the 12 PCGs, ATG is the most common initiation codon, whereas TAG is the most common termination codon. The sequence identity of the same 12 PCGs among the eight trematodes (P. cuneatus, P. pellucidus, Pl. maculosus, D. chinensis, E. pancreaticum, B. goliath, T. zarudnyi, Tanaisia sp.) of Xiphidiata are 55.5%-81.7% at the nucleotide level and 43.9%-82.5% at the amino acid level. The nucleotide similarities among the complete mt genomes of the eight trematodes range from 54.1%-81.5%. Phylogenetic analysis based on the aligned concatenated amino acid sequences of the 12 PCGs shows that P. cuneatus and P. pellucidus cluster together and are sister to T. zarudnyi and Tanaisia sp., and this clade is more closely related to E. pancreaticum, Dicrocoelium spp. and Lyperosomum longicauda in the family Dicrocoeliidae, than it is to species in the families Plagiorchiidae and Brachycladiidae. These are the first reported complete mt genomes of Prosthogonimidae, and these data will provide additional molecular resources for further studies of Prosthogonimidae taxonomy, population genetics, and systematics.

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