Phylogeny and population structure of Echinococcus granulosus (sensu stricto) based on full-length cytb-nad2-atp6 mitochondrial genes-First report from Sialkot District of Pakistan

文献类型： 外文期刊

第一作者： Alvi, Mughees Aizaz

作者： Alvi, Mughees Aizaz;Li, Li;Fu, Bao-Quan;Liu, Youyu;Yin, Hong;Yan, Hong -Bin;Jia, Wan-Zhong;Alvi, Mughees Aizaz;Ali, Rana Muhammad Athar;Saqib, Muhammad;Hassan, Ali;Ghafoor, Muzafar;Qamar, Warda;Rahman, Siddiq Ur;Khan, Muhammad Umar Zafar;Jia, Wan-Zhong

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关键词： Echinococcus granulosus; cytb; atp6; nad2; Pakistan; Genetic variation; Haplotype diversity; Phylogeny

期刊名称：MOLECULAR AND BIOCHEMICAL PARASITOLOGY （ 影响因子：1.5； 五年影响因子：1.7 ）

ISSN： 0166-6851

年卷期： 2023 年 253 卷

页码：

收录情况： SCI

摘要： Cystic echinococcosis is a zoonotic disease of livestock having serious economic setbacks. The etiological agents of the disease belong to Echinococcus granulosus sensu lato. Despite of worldwide distribution of the disease, the molecular studies mainly employ amplification of cox1, nad1 and nad5 genes. To further strengthen the knowledge about significance of other molecular markers and to investigate the genetic diversity and population structure of Echinococcus species in Pakistan, the current study was designed in which full length mitochondrial cytb, atp6 and nad2 genes were amplified. Based on BLAST searches of the generated cytb, atp6 and nad2 gene sequences from a total of 18 hydatid cysts collected from cattle, 12 isolates were identified as E. granulousus G3 and 6 as E. granulosus (G1). The phylogeny inferred by the Bayesian method using nucleotide sequences of cytb-atp6-nad2 further confirmed their identity. The diversity indices indicated a high haplotype and a low nucleotide diversity. The negative values of Tajima's D and Fu's Fs test demonstrated deviation from neutrality suggesting a recent population expansion. To the best of our knowledge, the present study described the genetic variation of E. granulosus population for the first time in Pakistan using full-length cytb, atp6 and nad2 mitochondrial genes. The findings on the genetic variation of E. granulosus in Pakistan will constitute useful baseline information for future studies on the prevalence and population structure of E. granulosus based on full-length cytb, atp6 and nad2.

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