Abstract:
:Species of Centrorhynchus (Polymorphida: Centrorhynchidae) commonly parasitize various falconiform and strigiform birds worldwide. In the present study, the complete mitochondrial (mt) genome sequences of Centrorhynchus clitorideus was sequenced and annotated for the first time based on specimens collected from the little owl Athene noctua (Scopoli) (Strigiformes: Strigidae) in Pakistan. The complete mt genome sequences of C. clitorideus is 15,884 bp in length, and contained 36 genes [two rRNA genes (rrnL and rrnS), 22 tRNA genes and 12 protein-coding genes (PCGs) (lacking atp8)] and two non-coding regions (NCR1 and NCR2), which represents the largest mt genome of acanthocephalan reported so far. In order to assess the systematic position of C. clitorideus and the interrelationship of the family Centrorhynchidae and the other families in order Polymorphida, the phylogenetic tree was constructed using Bayesian inference (BI) based on amino acid sequences of 12 PCGs. Phylogenetic results supported C. clitorideus formed a sister relationship to C. milvus in Centrorhynchidae, which has a sister relationship to the representatives of Polymorphidae + Plagiorhynchidae. Our results revealed the monophyly of Polymorphida and paraphyly of Echinorhynchida in the class Palaeacanthocephala. The validity of the genus Sphaerirostris (Polymorphida: Centrorhynchidae) was also challenged by our phylogenetic results, which seems to be a synonym of Centrorhynchus. Moreover, the present phylogenetic analysis indicated that the family Quadrigyridae and subfamily Pallisentinae (A. cheni and P. celatus) are polyphyletic.
journal_name
Mol Biochem Parasitoljournal_title
Molecular and biochemical parasitologyauthors
Muhammad N,Suleman,Khan MS,Li L,Zhao Q,Ullah H,Zhu XQ,Ma Jdoi
10.1016/j.molbiopara.2020.111274subject
Has Abstractpub_date
2020-05-01 00:00:00pages
111274eissn
0166-6851issn
1872-9428pii
S0166-6851(20)30038-4journal_volume
237pub_type
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