Temporal genetic structure in a poecilogonous polychaete: the interplay of developmental mode and environmental stochasticity

Benni Winding Hansen, Jenni E Kesäniemi, Marina Mustonen, Christoffer Boström, K Emily Knott

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Temporal variation in the genetic structure of populations can be caused by multiple factors, including natural selection, stochastic environmental variation, migration, or genetic drift. In benthic marine species, the developmental mode of larvae may indicate a possibility for temporal genetic variation: species with dispersive planktonic larvae are expected to be more likely to show temporal genetic variation than species with benthic or brooded non-dispersive larvae, due to differences in larval mortality and dispersal ability. We examined temporal genetic structure in populations of Pygospio elegans, a poecilogonous polychaete with within-species variation in developmental mode. P. elegans produces either planktonic, benthic, or intermediate larvae, varying both among and within populations, providing a within-species test of the generality of a relationship between temporal genetic variation and larval developmental mode
Original languageEnglish
JournalB M C Evolutionary Biology
Volume14
Issue number12
Number of pages12
ISSN1471-2148
DOIs
Publication statusPublished - 2014

Keywords

  • Pygospio elegans
  • Poecilogony
  • Population genetics
  • Developmental mode
  • Genetic drift
  • Temporal
  • Sweepstakes reproductive success
  • Full-sibs

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