Temporal variation of the population structure and genetic diversity of Farfantepenaeus notialis assessed by allozyme loci

  • Barcia A
  • López G
  • Hernández D
 et al. 
  • 34

    Readers

    Mendeley users who have this article in their library.
  • 28

    Citations

    Citations of this article.

Abstract

Population genetic studies carried out on penaeid shrimps have disclosed different patterns of population subdivision, revealing new aspects of shrimp biology as well as the effects of historical contingency molding those patterns. However, the stability of observed allele frequencies over time still remains untested. The objective of this article is to show the analysis of the temporal variation of allozymes in a shrimp species inhabiting Cuba which proves that the genetic structure of this species could significantly change in time. The study involves four populations of Farfantepenaeus notialis sampled in a period of 8 years. The significant statistics obtained from partitions observed in 1995 were not detected in 2003 (as suggested by AMOVA and F(ST)), whereas temporal genetic differentiation and heterozygosity became highly significant. The results strongly suggest that the effect of migrations could be the cause for the loss of F. notialis genetic structure in 2003. It is therefore imperative to call attention on the vulnerability of these populations when facing unstable environmental and habitat conditions.

Author-supplied keywords

  • Allozyme
  • F. notialis
  • Penaeid
  • Population structure
  • Shrimp
  • Temporal genetic variation

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Aymée Robainas Barcia

  • Georgina Espinosa López

  • Damir Hernández

  • Erik García-Machado

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free