Details

Autor(en) / Beteiligte

• Kinkar, Liina
• Laurimäe, Teivi
• Acosta-Jamett, Gerardo
• Andresiuk, Vanessa
• Balkaya, Ibrahim
• Casulli, Adriano
• Gasser, Robin B.
• van der Giessen, Joke
• González, Luis Miguel
• Haag, Karen L.
• Zait, Houria
• Irshadullah, Malik
• Jabbar, Abdul
• Jenkins, David J.
• Kia, Eshrat Beigom
• Manfredi, Maria Teresa
• Mirhendi, Hossein
• M'rad, Selim
• Rostami-Nejad, Mohammad
• Oudni-M'rad, Myriam
• Pierangeli, Nora Beatriz
• Ponce-Gordo, Francisco
• Rehbein, Steffen
• Sharbatkhori, Mitra
• Simsek, Sami
• Soriano, Silvia Viviana
• Sprong, Hein
• Šnábel, Viliam
• Umhang, Gérald
• Varcasia, Antonio
• Saarma, Urmas

Titel

Global phylogeography and genetic diversity of the zoonotic tapeworm Echinococcus granulosus sensu stricto genotype G1

Ist Teil von

• International journal for parasitology, 2018-08, Vol.48 (9-10), p.729-742

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2018

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• [Display omitted] •11,682 bp of mtDNA was analysed for 222 Echinococcus granulosus sensu stricto (s.s.) samples globally.•Based on a large dataset, G1 and G3 were confirmed as distinct mitochondrial genotypes.•The genetic diversity of E. granulosus s.s. G1 is extremely high globally.•The main diffusion routes of G1 originated from Turkey, Tunisia and Argentina.•Livestock trade has greatly influenced the current diversity of genotype G1. Echinococcus granulosus sensu stricto (s.s.) is the major cause of human cystic echinococcosis worldwide and is listed among the most severe parasitic diseases of humans. To date, numerous studies have investigated the genetic diversity and population structure of E. granulosus s.s. in various geographic regions. However, there has been no global study. Recently, using mitochondrial DNA, it was shown that E. granulosus s.s. G1 and G3 are distinct genotypes, but a larger dataset is required to confirm the distinction of these genotypes. The objectives of this study were to: (i) investigate the distinction of genotypes G1 and G3 using a large global dataset; and (ii) analyse the genetic diversity and phylogeography of genotype G1 on a global scale using near-complete mitogenome sequences. For this study, 222 globally distributed E. granulosus s.s. samples were used, of which 212 belonged to genotype G1 and 10 to G3. Using a total sequence length of 11,682 bp, we inferred phylogenetic networks for three datasets: E. granulosus s.s. (n = 222), G1 (n = 212) and human G1 samples (n = 41). In addition, the Bayesian phylogenetic and phylogeographic analyses were performed. The latter yielded several strongly supported diffusion routes of genotype G1 originating from Turkey, Tunisia and Argentina. We conclude that: (i) using a considerably larger dataset than employed previously, E. granulosus s.s. G1 and G3 are indeed distinct mitochondrial genotypes; (ii) the genetic diversity of E. granulosus s.s. G1 is high globally, with lower values in South America; and (iii) the complex phylogeographic patterns emerging from the phylogenetic and geographic analyses suggest that the current distribution of genotype G1 has been shaped by intensive animal trade.