Phylogenetic Position of Whitefish Coregonus lavaretus (L.) from Teletskoye Lake (Siberia) Based on Complete Mitochondrial DNA

Solovyev, Mikhail; Bochkarev, N. A.; Орешкова, Н. В.; Kashinskaya, E. N.; Simonov, Evgeniy

doi:10.1134/s1022795422020120

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…Teletskoye Lake (Western Siberia) is inhabited by a sympatric pair of whitefish: small “dwarf” planktivorous form/species Coregonus lavaretus pravdinellus (Dulkeit, 1949) and a large “normal” benthivorous form/species C. l. pidschian (Gmelin, 1789) ( Bochkarev and Zuikova, 2006 ; Bochkarev, 2009 ; Solovyev et al, 2022 ). These whitefishes are infected by mature stages of Proteocephalus sp.…”

Section: Introductionmentioning

confidence: 99%

Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of whitefish

et al. 2023

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IntroductionThe impact of parasites on gut microbiota of the host is well documented, but the role of the relationship between the parasite and the host in the formation of the microbiota is poorly understood. This study has focused on the influence that trophic behavior and resulting parasitism has on the structure of the microbiome.MethodsUsing 16S amplicon sequencing and newly developed methodological approaches, we characterize the gut microbiota of the sympatric pair of whitefish Coregonus lavaretus complex and the associated microbiota of cestodes parasitizing their intestine. The essence of the proposed approaches is, firstly, to use the method of successive washes of the microbiota from the cestode’s surfaces to analyze the degree of bacterial association to the tegument of the parasite. Secondly, to use a method combining the sampling of intestinal content and mucosa with the washout procedure from the mucosa to understand the real structure of the fish gut microbiota.Results and discussionOur results demonstrate that additional microbial community in the intestine are formed by the parasitic helminths that caused the restructuring of the microbiota in infected fish compared to those uninfected. Using the desorption method in Ringer’s solution, we have demonstrated that Proteocephalus sp. cestodes possess their own microbial community which is put together from “surface” bacteria, and bacteria which are weakly and strongly associated with the tegument, bacteria obtained after treatment of the tegument with detergent, and bacteria obtained after removal of the tegument from the cestodes.

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Section: Introductionmentioning

confidence: 99%

Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of whitefish

et al. 2023

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show abstract

“…Teletskoye Lake (Western Siberia) is inhabited by a sympatric pair of whitefish: small "dwarf" planktivorous form Coregonus lavaretuspravdinellus (Dulkeit, 1949) and a large "normal" benthivorous form C. l. pidschian (Gmelin, 1789) (Bochkarev & Zuikova, 2006;Bochkarev, 2009;Solovyev et al, 2022). These whitefishes are infected by mature stages of Proteocephalus sp.…”

Section: Introductionmentioning

confidence: 99%

Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of a sympatric pair of whitefish

Kashinskaya

Simonov

Poddubnaya

et al. 2022

Preprint

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The impact of parasites on gut microbiota of the host is well documented, but the role of the relationship between the parasite and the host in the formation of the microbiota is poorly understood. Using 16S amplicon sequencing and newly developed methodological approaches, we characterize the gut microbiota of the sympatric pair of whitefish Coregonus lavaretus complex and the associated microbiota of cestodes parasitizing their intestine. The essence of the proposed approaches is, firstly, to use the method of successive washes of the microbiota from the cestode’s surfaces to analyze the degree of bacterial association to the tegument of the parasite. Secondly, to use a method combining the sampling of intestinal content and mucosa with the wash-out procedure from the mucosa to understand the real structure of the fish gut microbiota. Our results demonstrate that the trophic diversification of a sympatric pair of whitefish predetermines a segregation by ecological niches of their respective microbial communities within their intestine. Additional environmental niches for settlement of bacteria in the intestine are formed by the parasitic helminths that caused the restructuring of the bacterial community in infected fish compared to those uninfected. Using the desorption method in Ringer’s solution, we have demonstrated that Proteocephalus sp. cestodes possess their own microbial community which is put together from “surface” bacteria received from the host, bacteria which are weakly and strongly associated with the tegument, and microbiota obtained after removal of the tegument from the cestodes.

show abstract

Phylogenetic Position of Whitefish Coregonus lavaretus (L.) from Teletskoye Lake (Siberia) Based on Complete Mitochondrial DNA

Cited by 2 publications

References 25 publications

Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of whitefish

Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of whitefish

Trophic diversification and parasitic invasion as ecological niche modulators for gut microbiota of a sympatric pair of whitefish

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