Assessing genetic variation and population structure of invasive North American beaver (Castor Canadensis Kuhl, 1820) in Tierra del Fuego (Argentina)

Marta Susana Lizarralde, Graciela Bailliet, Sebastián Poljak, Mariana Fasanella, Cecilia R Giulivi

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The North American beaver (Castor Canadensis) was introduced into Isla Grande de Tierra del Fuego, Argentina in 1946 as a potential source of wild fur. The species showed high growth potential, reaching close to 100,000 individuals from an original founding stock of 25 females and 25 males. Beavers adapted rapidly to their new environment and became invasive, providing an excellent model of successful adaptation of introduced populations to a new habitat. In this study, we used polymorphic mitochondrial (mt) DNA to evaluate genetic variation in the introduced beaver population from Tierra del Fuego. Nucleotide variation in partial sequences of Cytochrome b (500 bp) and 12S rRNA (421 bp) genes and the main non-coding D-loop region (521 bp) were analyzed. Our study allowed to identify 10 different mtDNA lineages in the invasive population, none of them shared among the source populations. The pattern observed is a consequence of cessation of gene flow following expansion of the founding beaver population since the time of its introduction. This approach contributes to the understanding of effects of genetic changes on survival ability and reproductive success of invasive species. It also has important management implications to invasive species.

Original languageEnglish (US)
Pages (from-to)673-683
Number of pages11
JournalBiological Invasions
Volume10
Issue number5
DOIs
StatePublished - Jun 2008

Fingerprint

Castor canadensis
Argentina
invasive species
population structure
genetic variation
Rodentia
Castoridae
Introduced Species
mitochondrial DNA
Population
gene flow
reproductive success
cytochrome
Mitochondrial DNA
gene
habitat
Cytochromes b
Gene Flow
cytochrome b
fur

Keywords

  • 12S rRNA
  • Castor Canadensis
  • Control region
  • Cytochrome b
  • D-loop
  • Genetic variation
  • Haplotype
  • Invasive population
  • Mitochondrial marker
  • Tierra del Fuego

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Plant Science
  • Ecology, Evolution, Behavior and Systematics

Cite this

Assessing genetic variation and population structure of invasive North American beaver (Castor Canadensis Kuhl, 1820) in Tierra del Fuego (Argentina). / Lizarralde, Marta Susana; Bailliet, Graciela; Poljak, Sebastián; Fasanella, Mariana; Giulivi, Cecilia R.

In: Biological Invasions, Vol. 10, No. 5, 06.2008, p. 673-683.

Research output: Contribution to journalArticle

Lizarralde, Marta Susana ; Bailliet, Graciela ; Poljak, Sebastián ; Fasanella, Mariana ; Giulivi, Cecilia R. / Assessing genetic variation and population structure of invasive North American beaver (Castor Canadensis Kuhl, 1820) in Tierra del Fuego (Argentina). In: Biological Invasions. 2008 ; Vol. 10, No. 5. pp. 673-683.
@article{3678ee22af694131a0394c305db3552d,
title = "Assessing genetic variation and population structure of invasive North American beaver (Castor Canadensis Kuhl, 1820) in Tierra del Fuego (Argentina)",
abstract = "The North American beaver (Castor Canadensis) was introduced into Isla Grande de Tierra del Fuego, Argentina in 1946 as a potential source of wild fur. The species showed high growth potential, reaching close to 100,000 individuals from an original founding stock of 25 females and 25 males. Beavers adapted rapidly to their new environment and became invasive, providing an excellent model of successful adaptation of introduced populations to a new habitat. In this study, we used polymorphic mitochondrial (mt) DNA to evaluate genetic variation in the introduced beaver population from Tierra del Fuego. Nucleotide variation in partial sequences of Cytochrome b (500 bp) and 12S rRNA (421 bp) genes and the main non-coding D-loop region (521 bp) were analyzed. Our study allowed to identify 10 different mtDNA lineages in the invasive population, none of them shared among the source populations. The pattern observed is a consequence of cessation of gene flow following expansion of the founding beaver population since the time of its introduction. This approach contributes to the understanding of effects of genetic changes on survival ability and reproductive success of invasive species. It also has important management implications to invasive species.",
keywords = "12S rRNA, Castor Canadensis, Control region, Cytochrome b, D-loop, Genetic variation, Haplotype, Invasive population, Mitochondrial marker, Tierra del Fuego",
author = "Lizarralde, {Marta Susana} and Graciela Bailliet and Sebasti{\'a}n Poljak and Mariana Fasanella and Giulivi, {Cecilia R}",
year = "2008",
month = "6",
doi = "10.1007/s10530-007-9161-6",
language = "English (US)",
volume = "10",
pages = "673--683",
journal = "Biological Invasions",
issn = "1387-3547",
publisher = "Springer Netherlands",
number = "5",

}

TY - JOUR

T1 - Assessing genetic variation and population structure of invasive North American beaver (Castor Canadensis Kuhl, 1820) in Tierra del Fuego (Argentina)

AU - Lizarralde, Marta Susana

AU - Bailliet, Graciela

AU - Poljak, Sebastián

AU - Fasanella, Mariana

AU - Giulivi, Cecilia R

PY - 2008/6

Y1 - 2008/6

N2 - The North American beaver (Castor Canadensis) was introduced into Isla Grande de Tierra del Fuego, Argentina in 1946 as a potential source of wild fur. The species showed high growth potential, reaching close to 100,000 individuals from an original founding stock of 25 females and 25 males. Beavers adapted rapidly to their new environment and became invasive, providing an excellent model of successful adaptation of introduced populations to a new habitat. In this study, we used polymorphic mitochondrial (mt) DNA to evaluate genetic variation in the introduced beaver population from Tierra del Fuego. Nucleotide variation in partial sequences of Cytochrome b (500 bp) and 12S rRNA (421 bp) genes and the main non-coding D-loop region (521 bp) were analyzed. Our study allowed to identify 10 different mtDNA lineages in the invasive population, none of them shared among the source populations. The pattern observed is a consequence of cessation of gene flow following expansion of the founding beaver population since the time of its introduction. This approach contributes to the understanding of effects of genetic changes on survival ability and reproductive success of invasive species. It also has important management implications to invasive species.

AB - The North American beaver (Castor Canadensis) was introduced into Isla Grande de Tierra del Fuego, Argentina in 1946 as a potential source of wild fur. The species showed high growth potential, reaching close to 100,000 individuals from an original founding stock of 25 females and 25 males. Beavers adapted rapidly to their new environment and became invasive, providing an excellent model of successful adaptation of introduced populations to a new habitat. In this study, we used polymorphic mitochondrial (mt) DNA to evaluate genetic variation in the introduced beaver population from Tierra del Fuego. Nucleotide variation in partial sequences of Cytochrome b (500 bp) and 12S rRNA (421 bp) genes and the main non-coding D-loop region (521 bp) were analyzed. Our study allowed to identify 10 different mtDNA lineages in the invasive population, none of them shared among the source populations. The pattern observed is a consequence of cessation of gene flow following expansion of the founding beaver population since the time of its introduction. This approach contributes to the understanding of effects of genetic changes on survival ability and reproductive success of invasive species. It also has important management implications to invasive species.

KW - 12S rRNA

KW - Castor Canadensis

KW - Control region

KW - Cytochrome b

KW - D-loop

KW - Genetic variation

KW - Haplotype

KW - Invasive population

KW - Mitochondrial marker

KW - Tierra del Fuego

UR - http://www.scopus.com/inward/record.url?scp=44049098059&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=44049098059&partnerID=8YFLogxK

U2 - 10.1007/s10530-007-9161-6

DO - 10.1007/s10530-007-9161-6

M3 - Article

AN - SCOPUS:44049098059

VL - 10

SP - 673

EP - 683

JO - Biological Invasions

JF - Biological Invasions

SN - 1387-3547

IS - 5

ER -