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- W2057632336 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 357:245-253 (2008) - DOI: https://doi.org/10.3354/meps07296 Multiple paternity and maintenance of genetic diversity in the live-bearing rockfishes Sebastes spp. John R. Hyde1,2,*, Carol Kimbrell2, Larry Robertson2, Kevin Clifford3, Eric Lynn2, Russell Vetter2 1Scripps Institution of Oceanography, 9500 Gilman Drive, La Jolla, California 92093-0203, USA 2Southwest Fisheries Science Center, NOAA/NMFS, 8604 La Jolla Shores Dr., La Jolla, California 92037, USA 3Oregon Coast Aquarium, 2820 SE Ferry Slip Rd, Newport, Oregon 97365, USA *Email: jrhyde@ucsd.edu ABSTRACT: The understanding of mating systems is key to the proper management of exploited species, particularly highly fecund, r-selected fishes, which often show strong discrepancies between census and effective population sizes. The development of polymorphic genetic markers, such as codominant nuclear microsatellites, has made it possible to study the paternity of individuals within a brood, helping to elucidate the species’ mating system. In the present study, paternity analysis was performed on 35 broods, representing 17 species of the live-bearing scorpaenid genus Sebastes. We report on the finding of multiple paternity from several species of Sebastes and show that at least 3 sires can contribute paternity to a single brood. A phylogenetically and ecologically diverse sample of Sebastes species was examined, with multiple paternity found in 14 of the 35 broods and 10 of the 17 examined species, we suggest that this behavior is not a rare event within a single species and is likely common throughout the genus. Despite high variance in reproductive success, Sebastes spp., in general, show moderate to high levels of genetic diversity. We suggest that multiple paternity may be a form of bet hedging that serves to maximize genetic diversity within broods and that, regardless of the selective value at the level of individual fitness, the net effect at the population level may be a genetic buffer to the consequences of severe overexploitation. KEY WORDS: Multiple paternity · Sebastes · Rockfish · Mating system · Polyandry · Polygynandry Full text in pdf format PreviousNextCite this article as: Hyde JR, Kimbrell C, Robertson L, Clifford K, Lynn E, Vetter R (2008) Multiple paternity and maintenance of genetic diversity in the live-bearing rockfishes Sebastes spp.. Mar Ecol Prog Ser 357:245-253. https://doi.org/10.3354/meps07296 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 357. Online publication date: April 07, 2008 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2008 Inter-Research." @default.
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- W2057632336 title "Multiple paternity and maintenance of genetic diversity in the live-bearing rockfishes Sebastes spp." @default.
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