A genetic reconstruction of the invasion of the calanoid copepod Pseudodiaptomus inopinus across the North American Pacific Coast

Eric Dexter, Stephen M. Bollens, Jeffery Cordell, Ho Young Soh, Gretchen Rollwagen-Bollens, Susanne Pfeifer, Jérôme Goudet, Séverine Vuilleumier

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The rate of aquatic invasions by planktonic organisms has increased considerably in recent decades. In order to effectively direct funding and resources to control the spread of such invasions, a methodological framework for identifying high-risk transport vectors, as well as ruling out vectors of lesser concern will be necessary. A number of estuarine ecosystems on the North American Pacific Northwest coast have experienced a series of high impact planktonic invasions that have slowly unfolded across the region in recent decades, most notably, that of the planktonic copepod crustacean Pseudodiaptomus inopinus. Although introduction of P. inopinus to the United States almost certainly occurred through the discharge of ballast water from commercial vessels originating in Asia (the species’ native range), the mechanisms and patterns of subsequent spread remain unknown. In order to elucidate the migration events shaping this invasion, we sampled the genomes of copepods from seven invasive and two native populations using restriction-site associated DNA sequencing. This genetic data was evaluated against spatially-explicit genetic simulation models to evaluate competing scenarios of invasion spread. Our results indicate that invasive populations of P. inopinus exhibit a geographically unstructured genetic composition, likely arising from infrequent and large migration events. This pattern of genetic patchiness was unexpected given the linear geographic structure of the sampled populations, and strongly contrasts with the clear invasion corridors observed in many aquatic systems.

Original languageEnglish (US)
Pages (from-to)1577-1595
Number of pages19
JournalBiological Invasions
Volume20
Issue number6
DOIs
StatePublished - Jun 1 2018

Fingerprint

Copepoda
coasts
coast
ballast water
estuarine ecosystem
patchiness
funding
native species
crustacean
simulation models
population structure
indigenous species
vessel
sequence analysis
genome
Crustacea
DNA
ecosystems
organisms
resource

Keywords

  • ABC
  • Aquatic invasions
  • Copepod
  • Genetic simulation
  • Migration/colonization pattern
  • RADseq
  • Zooplankton

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

Cite this

A genetic reconstruction of the invasion of the calanoid copepod Pseudodiaptomus inopinus across the North American Pacific Coast. / Dexter, Eric; Bollens, Stephen M.; Cordell, Jeffery; Soh, Ho Young; Rollwagen-Bollens, Gretchen; Pfeifer, Susanne; Goudet, Jérôme; Vuilleumier, Séverine.

In: Biological Invasions, Vol. 20, No. 6, 01.06.2018, p. 1577-1595.

Research output: Contribution to journalArticle

Dexter, E, Bollens, SM, Cordell, J, Soh, HY, Rollwagen-Bollens, G, Pfeifer, S, Goudet, J & Vuilleumier, S 2018, 'A genetic reconstruction of the invasion of the calanoid copepod Pseudodiaptomus inopinus across the North American Pacific Coast', Biological Invasions, vol. 20, no. 6, pp. 1577-1595. https://doi.org/10.1007/s10530-017-1649-0
Dexter, Eric ; Bollens, Stephen M. ; Cordell, Jeffery ; Soh, Ho Young ; Rollwagen-Bollens, Gretchen ; Pfeifer, Susanne ; Goudet, Jérôme ; Vuilleumier, Séverine. / A genetic reconstruction of the invasion of the calanoid copepod Pseudodiaptomus inopinus across the North American Pacific Coast. In: Biological Invasions. 2018 ; Vol. 20, No. 6. pp. 1577-1595.
@article{d733bbaaf52e4b06a22c15189fe12b5b,
title = "A genetic reconstruction of the invasion of the calanoid copepod Pseudodiaptomus inopinus across the North American Pacific Coast",
abstract = "The rate of aquatic invasions by planktonic organisms has increased considerably in recent decades. In order to effectively direct funding and resources to control the spread of such invasions, a methodological framework for identifying high-risk transport vectors, as well as ruling out vectors of lesser concern will be necessary. A number of estuarine ecosystems on the North American Pacific Northwest coast have experienced a series of high impact planktonic invasions that have slowly unfolded across the region in recent decades, most notably, that of the planktonic copepod crustacean Pseudodiaptomus inopinus. Although introduction of P. inopinus to the United States almost certainly occurred through the discharge of ballast water from commercial vessels originating in Asia (the species’ native range), the mechanisms and patterns of subsequent spread remain unknown. In order to elucidate the migration events shaping this invasion, we sampled the genomes of copepods from seven invasive and two native populations using restriction-site associated DNA sequencing. This genetic data was evaluated against spatially-explicit genetic simulation models to evaluate competing scenarios of invasion spread. Our results indicate that invasive populations of P. inopinus exhibit a geographically unstructured genetic composition, likely arising from infrequent and large migration events. This pattern of genetic patchiness was unexpected given the linear geographic structure of the sampled populations, and strongly contrasts with the clear invasion corridors observed in many aquatic systems.",
keywords = "ABC, Aquatic invasions, Copepod, Genetic simulation, Migration/colonization pattern, RADseq, Zooplankton",
author = "Eric Dexter and Bollens, {Stephen M.} and Jeffery Cordell and Soh, {Ho Young} and Gretchen Rollwagen-Bollens and Susanne Pfeifer and J{\'e}r{\^o}me Goudet and S{\'e}verine Vuilleumier",
year = "2018",
month = "6",
day = "1",
doi = "10.1007/s10530-017-1649-0",
language = "English (US)",
volume = "20",
pages = "1577--1595",
journal = "Biological Invasions",
issn = "1387-3547",
publisher = "Springer Netherlands",
number = "6",

}

TY - JOUR

T1 - A genetic reconstruction of the invasion of the calanoid copepod Pseudodiaptomus inopinus across the North American Pacific Coast

AU - Dexter, Eric

AU - Bollens, Stephen M.

AU - Cordell, Jeffery

AU - Soh, Ho Young

AU - Rollwagen-Bollens, Gretchen

AU - Pfeifer, Susanne

AU - Goudet, Jérôme

AU - Vuilleumier, Séverine

PY - 2018/6/1

Y1 - 2018/6/1

N2 - The rate of aquatic invasions by planktonic organisms has increased considerably in recent decades. In order to effectively direct funding and resources to control the spread of such invasions, a methodological framework for identifying high-risk transport vectors, as well as ruling out vectors of lesser concern will be necessary. A number of estuarine ecosystems on the North American Pacific Northwest coast have experienced a series of high impact planktonic invasions that have slowly unfolded across the region in recent decades, most notably, that of the planktonic copepod crustacean Pseudodiaptomus inopinus. Although introduction of P. inopinus to the United States almost certainly occurred through the discharge of ballast water from commercial vessels originating in Asia (the species’ native range), the mechanisms and patterns of subsequent spread remain unknown. In order to elucidate the migration events shaping this invasion, we sampled the genomes of copepods from seven invasive and two native populations using restriction-site associated DNA sequencing. This genetic data was evaluated against spatially-explicit genetic simulation models to evaluate competing scenarios of invasion spread. Our results indicate that invasive populations of P. inopinus exhibit a geographically unstructured genetic composition, likely arising from infrequent and large migration events. This pattern of genetic patchiness was unexpected given the linear geographic structure of the sampled populations, and strongly contrasts with the clear invasion corridors observed in many aquatic systems.

AB - The rate of aquatic invasions by planktonic organisms has increased considerably in recent decades. In order to effectively direct funding and resources to control the spread of such invasions, a methodological framework for identifying high-risk transport vectors, as well as ruling out vectors of lesser concern will be necessary. A number of estuarine ecosystems on the North American Pacific Northwest coast have experienced a series of high impact planktonic invasions that have slowly unfolded across the region in recent decades, most notably, that of the planktonic copepod crustacean Pseudodiaptomus inopinus. Although introduction of P. inopinus to the United States almost certainly occurred through the discharge of ballast water from commercial vessels originating in Asia (the species’ native range), the mechanisms and patterns of subsequent spread remain unknown. In order to elucidate the migration events shaping this invasion, we sampled the genomes of copepods from seven invasive and two native populations using restriction-site associated DNA sequencing. This genetic data was evaluated against spatially-explicit genetic simulation models to evaluate competing scenarios of invasion spread. Our results indicate that invasive populations of P. inopinus exhibit a geographically unstructured genetic composition, likely arising from infrequent and large migration events. This pattern of genetic patchiness was unexpected given the linear geographic structure of the sampled populations, and strongly contrasts with the clear invasion corridors observed in many aquatic systems.

KW - ABC

KW - Aquatic invasions

KW - Copepod

KW - Genetic simulation

KW - Migration/colonization pattern

KW - RADseq

KW - Zooplankton

UR - http://www.scopus.com/inward/record.url?scp=85037725387&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85037725387&partnerID=8YFLogxK

U2 - 10.1007/s10530-017-1649-0

DO - 10.1007/s10530-017-1649-0

M3 - Article

AN - SCOPUS:85037725387

VL - 20

SP - 1577

EP - 1595

JO - Biological Invasions

JF - Biological Invasions

SN - 1387-3547

IS - 6

ER -