Genetic Characterization and Phylogenetic Analysis of Fasciola Species Isolated From Yaks on Qinghai-Tibet Plateau, China
文献类型： 外文期刊
作者： Gao, Xing 1 ; Wang, Dongjing 2 ; Zhang, Zhao 1 ; Quan, Chuxian 1 ; Zhou, Shimeng 1 ; Li, Kewei 1 ; Li, Yan 1 ; Zhao, Suonan 4 ; Kong, Xiangying 4 ; Kulyar, Muhammad Fakhar-e-Alam 1 ; Zeng, Jiangyong 2 ; Li, Jiakui 1 ;
作者机构： 1.Huazhong Agr Univ, Coll Vet Med, Wuhan, Peoples R China
2.Tibet Acad Agr & Anim Husb Sci, Tibet Livestock Res Inst, Lhasa, Peoples R China
3.State Key Lab Hulless Barley & Yak Germplasm Resou, Lhasa, Peoples R China
4.Haibei Agr & Anim Husb Sci Inst, Haibei, Peoples R China
5.Tibet Agr & Anim Husb Univ, Coll Anim Husb & Vet Med, Linzhi, Peoples R China
关键词： yaks; Fasciola intermediate; mitogenome; gene order; phylogenetic
期刊名称：FRONTIERS IN VETERINARY SCIENCE （ 影响因子：3.471； 五年影响因子：3.821 ）
ISSN：
年卷期： 2022 年 9 卷
页码：
收录情况： SCI
摘要： The present study determined the complete mitochondrial DNA (mt DNA) sequence of Fasciola intermediate (isolated from yaks) based on gene content and genome organization. According to our findings, the genome of Fasciola intermediate was 13,960 bp in length, containing 2 ribosomal RNA (rRNA) genes, 12 protein-coding genes (PCGs), and 22 transfer RNA (tRNA) genes. The A+T content of genomes was 63.19%, with A (15.17%), C (9.31%), G (27.51%), and T as the nucleotide composition (48.02%). Meanwhile, the results showed negative AT-skew (-0.52) and positive GC-skew (0.494). The AT bias significantly affected both the codon usage pattern and amino acid composition of proteins. There were 2715 codons in all 12 protein-coding genes, excluding termination codons. Leu (16.72%) was the most often used amino acid, followed by Val (12.74%), Phe (10.90%), Ser (10.09%), and Gly (8.39%). A phylogenetic tree was built using Maximum-Likelihood (ML) through MEGA 11.0 software. The entire mt DNA sequence of Fasciola intermediate gave more genetic markers for investigating Trematoda population genetics, systematics, and phylogeography. Hence, for the first time, our study confirmed that yaks on the Qinghai-Tibet plateau have the infestation of Fasciola intermediate parasite.
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