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

Autor: MacKiewicz, M., Fletcher, D. E., Wilkins, S. D., DeWoody, J. A., Avise, J. C.
Předmět:
Zdroj: Molecular Ecology; Sep2002, Vol. 11 Issue 9, p1877-1883, 7p
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index