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A genetic assessment of parentage in a natural population of dollar sunfish (Lepomis marginatus) based on microsatellite markers.

  • Author(s): MacKiewicz, M
  • Fletcher, DE
  • Wilkins, SD
  • DeWoody, JA
  • Avise, JC
  • et al.
Abstract

We employ microsatellite markers to assess mating tactics in Lepomis marginatus. Genetic assignments for 1015 progeny in 23 nests indicate that about 95% of the offspring were sired by their respective nest-guardians, a finding consistent with the apparent absence of a brood parasitic morphotype in this species. Allopaternal care was documented in two nests, one resulting from a nest takeover, the other from cuckoldry by an adjoining nest-tender. Clustered de novo mutations also were identified. About 2.5 females (range 1-7) contributed to the offspring pool within a typical nest. Results are compared to those for other Lepomis species.

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