The complete mitochondrial genome of the beef cattle hookworm Bunostomum phlebotomum (Nematoda: Bunostominae)

Yingxin Li; Yijun Chen; Lidan Wang; Yunjian Liu; Wei Wang; Xuan Zhou; Jun Yi; Zhicai Zuo; Yue Xie

doi:10.1080/23802359.2021.1875918

The complete mitochondrial genome of the beef cattle hookworm Bunostomum phlebotomum (Nematoda: Bunostominae)

Mitochondrial DNA B Resour. 2021 Feb 17;6(2):617-619. doi: 10.1080/23802359.2021.1875918.

Authors

Yingxin Li¹, Yijun Chen¹, Lidan Wang¹, Yunjian Liu¹, Wei Wang², Xuan Zhou^{1

3}, Jun Yi², Zhicai Zuo⁴, Yue Xie¹

Affiliations

¹ Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.
² Animal Husbandry Research Institute of Sichuan Province, Chengdu, China.
³ Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China.
⁴ Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.

Abstract

The bovine hookworm Bunostomum phlebotomum (Nematoda: Bunostominae) is a blood-feeding nematode with important socioeconomic impact in the cattle breeding industry. In the present study, the complete mitochondrial genome sequence of a representative individual of B. phlebotomum from beef cattle in Southwest China was determined using the next generation sequencing technology. The genome was 13,799 bp in size and encoded 12 protein-coding genes, 22 tRNA genes and two rRNA genes. The phylogeny revealed that although B. phlebotomum from Chinese beef cattle and yaks were more closely related to each other than to that from Australian cows, these three bovine-originated B. phlebotomum grouped together and formed paraphyletic relationships with Bunostomum trigonocephalum (goat/sheep hookworm) and Necator americanus (human hookworm), supporting their sister-species relationships within Bunostominae. The cumulative mitochondrial DNA data provides a better understanding of phylogenetic relationships of this species in cattle.

Keywords: Bovine hookworm; Bunostomum phlebotomum; mitochondrial genome; phylogeny.

Grants and funding

This study was supported by the Sichuan Beef Cattle Innovation Team of National Modern Agricultural Industry Technology System [No. 035Z2036], Sichuan International Science and Technology Innovation Cooperation/Hong Kong, Macao and Taiwan Science and Technology Innovation Cooperation Project, Sichuan, China [No. 2019YFH0065] and National Key Research and Development Project [No. 2018YFD0501800].