TY - JOUR

T1 - New data support phylogeographic patterns in a marine parasite Tristriata anatis Digenea

T2 - Notocotylidae

AU - Gonchar, Anna

AU - Galaktionov, Kirill V.

PY - 2020

Y1 - 2020

N2 - Intraspecific diversity in parasites with heteroxenous life cycles is guided by reproduction mode, host vagility and dispersal, transmission features and many other factors. Studies of these factors in Digenea have highlighted several important patterns. However, little is known about intraspecific variation for digeneans in the marine Arctic ecosystems. Here we analyse an extended dataset of partial cox1 and nadh1 sequences for Tristriata anatis Notocotylidae and confirm the preliminary findings on its distribution across Eurasia. Haplotypes are not shared between Europe and the North Pacific, suggesting a lack of current connection between these populations. Periwinkle distribution and anatid migration routes are consistent with such a structure of haplotype network. The North Pacific population appears ancestral, with later expansion of T. Anatis to the North Atlantic. Here the parasite circulates widely, but the direction of haplotype transfer from the north-east to the south-west is more likely than the opposite. In the eastern Barents Sea, the local transmission hotspot is favoured.

AB - Intraspecific diversity in parasites with heteroxenous life cycles is guided by reproduction mode, host vagility and dispersal, transmission features and many other factors. Studies of these factors in Digenea have highlighted several important patterns. However, little is known about intraspecific variation for digeneans in the marine Arctic ecosystems. Here we analyse an extended dataset of partial cox1 and nadh1 sequences for Tristriata anatis Notocotylidae and confirm the preliminary findings on its distribution across Eurasia. Haplotypes are not shared between Europe and the North Pacific, suggesting a lack of current connection between these populations. Periwinkle distribution and anatid migration routes are consistent with such a structure of haplotype network. The North Pacific population appears ancestral, with later expansion of T. Anatis to the North Atlantic. Here the parasite circulates widely, but the direction of haplotype transfer from the north-east to the south-west is more likely than the opposite. In the eastern Barents Sea, the local transmission hotspot is favoured.

KW - cox1

KW - geographic diversity

KW - haplotype network

KW - intraspecific diversity

KW - Key wordsDigenea

KW - nadh1

KW - Notocotylidae

KW - phylogeography

KW - population structure

KW - Tristriata anatis

KW - two-host life cycle

KW - Haplotypes

KW - Cyclooxygenase 1/genetics

KW - DNA, Mitochondrial

KW - Phylogeny

KW - Life Cycle Stages

KW - Genetic Variation

KW - Genetics, Population

KW - Europe

KW - Phylogeography

KW - Sequence Analysis, DNA

KW - Animals

KW - Arctic Regions

KW - NAD/genetics

KW - Trematoda/genetics

KW - EIDER SOMATERIA-MOLLISSIMA

KW - Digenea

KW - TRAITS

KW - LIFE-CYCLE

KW - COMMUNITIES

KW - DISPERSAL

KW - POPULATION GENETIC-STRUCTURE

KW - ECOLOGY

KW - HISTORY

KW - RANGE

UR - http://www.scopus.com/inward/record.url?scp=85071906606&partnerID=8YFLogxK

U2 - 10.1017/S0022149X19000786

DO - 10.1017/S0022149X19000786

M3 - Article

C2 - 31462333

AN - SCOPUS:85071906606

VL - 94

JO - Journal of Helminthology

JF - Journal of Helminthology

SN - 0022-149X

M1 - e79

ER -