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Demographic history and population genetic structure of Anisakis pegreffii in the cutlassfish Trichiurus japonicus along the coast of mainland China and Taiwan.
Ding, Fang; Gu, Sui; Yi, Mu-Rong; Yan, Yun-Rong; Wang, Wei-Kuang; Tung, Kwong-Chung.
Afiliación
  • Ding F; Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung, 402, Taiwan.
  • Gu S; College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China.
  • Yi MR; College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China.
  • Yan YR; College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China.
  • Wang WK; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, 524013, China.
  • Tung KC; Center of Marine Fisheries Information and Technology, Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518120, China.
Parasitol Res ; 121(10): 2803-2816, 2022 Oct.
Article en En | MEDLINE | ID: mdl-35918454
Studying the genetic diversity of nematode parasite populations is crucial to gaining insight into parasite infection dynamics and informing parasite phylogeography. Anisakiasis is a zoonotic disease caused by the consumption of infectious third-stage larvae (L3) of Anisakis spp. carried by marine fish. In the present study, a total of 206 mitochondrial DNA sequences (cytochrome c oxidase 2, cox2) were used to study the genetic diversity, genetic structure, and historical demography of twelve A. pegreffii populations from Trichiurus japonicas along the coast of mainland China and Taiwan. Two distinct evolutionary lineages of A. pegreffii and no significant genealogical structures corresponding to sampling localities suggested that isolation in the marginal seas shaped their patterns of phylogeographic distribution along the coast of mainland China and Taiwan during glaciation with lower sea levels. Furthermore, pairwise FST values and AMOVA did not indicate any significant genetic differentiation among groups with no relation to the geographic area, which might be attributed to fewer barriers to gene flow as well as large population sizes. The results of the neutrality test, mismatch distribution, and Bayesian skyline plot analyses showed that entire population underwent population expansion during the late Pleistocene. Analysis of the demographic history revealed that A. pegreffii underwent historical lineage diversification and admixture due to secondary contact based on ABC analysis. The present research represents the first definitive population structure and demographic history across sampling locations of A. pegreffii along the coast of mainland China and Taiwan.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Perciformes / Anisakis / Anisakiasis Tipo de estudio: Risk_factors_studies Límite: Animals País/Región como asunto: Asia Idioma: En Revista: Parasitol Res Asunto de la revista: PARASITOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Perciformes / Anisakis / Anisakiasis Tipo de estudio: Risk_factors_studies Límite: Animals País/Región como asunto: Asia Idioma: En Revista: Parasitol Res Asunto de la revista: PARASITOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Alemania