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Article

A Genetic Assessment of Parentage in the Blackspot Sergeant Damselfish, Abudefduf sordidus (Pisces: Pomacentridae)

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Department of Science, Middlesex Community College, 591 Spring Rd., Bedford, MA 01730, USA
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Department of Biology, Boston University, 5 Cummington Mall, Boston, MA 02215, USA
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Institute of Arctic Biology, University of Alaska Fairbanks, 902 N. Koyukuk Dr., Fairbanks, AK 99775, USA
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Department of Ecology and Evolutionary Biology, University of California, 621 Charles E. Young Dr. South, Los Angeles, CA 90095, USA
*
Author to whom correspondence should be addressed.
Fishes 2019, 4(4), 53; https://doi.org/10.3390/fishes4040053
Received: 10 August 2019 / Revised: 1 October 2019 / Accepted: 11 October 2019 / Published: 24 October 2019
Microsatellite markers were used to investigate the reproductive behavior of the damselfish Abudefduf sordidus at Johnston Atoll, Central Pacific Ocean. Genetic results indicated that ten males maintained guardianship over their nest territories for up to nine nest cycles during a 3.5 month period. Genotypes of 1025 offspring sampled from 68 nests (composed of 129 clutches) were consistent with 95% of the offspring being sired by the guardian male. Offspring lacking paternal alleles at two or more loci were found in 19 clutches, indicating that reproductive parasitism and subsequent alloparental care occurred. Reconstructed maternal genotypes allowed the identification of a minimum of 74 different females that spawned with these ten territorial males. Males were polygynous, mating with multiple females within and between cycles. Genetic data from nests, which consisted of up to four clutches during a reproductive cycle, indicated that each clutch usually had only one maternal contributor and that different clutches each had different dams. Females displayed sequential polyandry spawning with one male within a cycle but switched males in subsequent spawning cycles. These results highlight new findings regarding male parasitic spawning, polygyny, and sequential polyandry in a marine fish with exclusive male paternal care. View Full-Text
Keywords: reproductive behavior; paternity; microsatellite; alloparental care; alternative reproductive tactic; polyandry; fish spawning reproductive behavior; paternity; microsatellite; alloparental care; alternative reproductive tactic; polyandry; fish spawning
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MDPI and ACS Style

Kerr Lobel, L.; Drown, D.M.; Barber, P.H.; Lobel, P.S. A Genetic Assessment of Parentage in the Blackspot Sergeant Damselfish, Abudefduf sordidus (Pisces: Pomacentridae). Fishes 2019, 4, 53. https://doi.org/10.3390/fishes4040053

AMA Style

Kerr Lobel L, Drown DM, Barber PH, Lobel PS. A Genetic Assessment of Parentage in the Blackspot Sergeant Damselfish, Abudefduf sordidus (Pisces: Pomacentridae). Fishes. 2019; 4(4):53. https://doi.org/10.3390/fishes4040053

Chicago/Turabian Style

Kerr Lobel, Lisa; Drown, Devin M.; Barber, Paul H.; Lobel, Phillip S. 2019. "A Genetic Assessment of Parentage in the Blackspot Sergeant Damselfish, Abudefduf sordidus (Pisces: Pomacentridae)" Fishes 4, no. 4: 53. https://doi.org/10.3390/fishes4040053

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