Microsatellite genetic diversity and differentiation of native and introduced grass carp populations in three continents

Qin Chen, Chenghui Wang, Guoqing Lu, Jinliang Zhao, Duane C. Chapman, Z. Jeney, Sifa Li

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Grass carp (Ctenopharyngodon idella), a freshwater species native to China, has been introduced to about 100 countries/regions and poses both biological and environmental challenges to the receiving ecosystems. In this study, we analyzed genetic variation in grass carp from three introduced river systems (Mississippi River Basin in US, Danube River in Hungary, and Tone River in Japan) as well as its native ranges (Yangtze, Pearl, and Amur Rivers) in China using 21 novel microsatellite loci. The allelic richness, observed heterozygosity, and within-population gene diversity were found to be lower in the introduced populations than in the native populations, presumably due to the small founder population size of the former. Significant genetic differentiation was found between all pairwise populations from different rivers. Both principal component analysis and Bayesian clustering analysis revealed obvious genetic distinction between the native and introduced populations. Interestingly, genetic bottlenecks were detected in the Hungarian and Japanese grass carp populations, but not in the North American population, suggesting that the Mississippi River Basin grass carp has experienced rapid population expansion with potential genetic diversification during the half-century since its introduction. Consequently, the combined forces of the founder effect, introduction history, and rapid population expansion help explaining the observed patterns of genetic diversity within and among both native and introduced populations of the grass carp.

Original languageEnglish
Pages (from-to)115-123
Number of pages9
JournalGenetica
Volume140
Issue number4-6
DOIs
Publication statusPublished - Jun 2012

Fingerprint

Ctenopharyngodon idella
Carps
Microsatellite Repeats
microsatellite repeats
Rivers
genetic variation
Population
Mississippi
rivers
Mississippi River
founder effect
China
Founder Effect
Danube River
Bayes Theorem
pearls
Hungary
Population Density
Principal Component Analysis
Fresh Water

Keywords

  • Bottleneck effect
  • Ctenopharyngodon idella
  • Genetic differentiation
  • Microsatellite

ASJC Scopus subject areas

  • Genetics
  • Insect Science
  • Animal Science and Zoology
  • Plant Science

Cite this

Microsatellite genetic diversity and differentiation of native and introduced grass carp populations in three continents. / Chen, Qin; Wang, Chenghui; Lu, Guoqing; Zhao, Jinliang; Chapman, Duane C.; Jeney, Z.; Li, Sifa.

In: Genetica, Vol. 140, No. 4-6, 06.2012, p. 115-123.

Research output: Contribution to journalArticle

Chen, Qin ; Wang, Chenghui ; Lu, Guoqing ; Zhao, Jinliang ; Chapman, Duane C. ; Jeney, Z. ; Li, Sifa. / Microsatellite genetic diversity and differentiation of native and introduced grass carp populations in three continents. In: Genetica. 2012 ; Vol. 140, No. 4-6. pp. 115-123.
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