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Article: Population- and sex-specific divergence in growth patterns between two ninespine stickleback (Pungitius pungitius L) populations
Title | Population- and sex-specific divergence in growth patterns between two ninespine stickleback (Pungitius pungitius L) populations |
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Authors | |
Keywords | Pungitius pungitius Maturation Growth rate Asymptotic length Common garden Von Bertalanffy |
Issue Date | 2013 |
Citation | Evolutionary Ecology Research, 2013, v. 15, n. 7, p. 793-808 How to Cite? |
Abstract | Background: Growth rate is an important life-history trait that often shows sex- and population-specific differentiation in many organisms. Yet the relative contributions of additive genetic, non-additive genetic, environmental, and maternal effects underlying these differences remain largely unknown, especially in wild animal populations. Goal: To determine the relative contributions of additive genetic, non-additive genetic, and environmental effects underlying population differences in growth rate between two stickleback populations differing markedly in their body size. Organism: Ninespine stickleback (Pungitius pungitius). Methods: We crossed two phenotypically and genetically distinct populations to produce 'pure' marine (Hel-Hel; small sized), 'pure' pond (Pyö-Py ö; large sized), and 'hybrid' (Hel-Pyö and Pyö-Hel) offspring. We reared them in standardized common garden settings until maturation. Results: Analyses of Von Bertalanffy growth curve parameters revealed that sexes and crosstypes differed in their intrinsic growth rates (k) and asymptotic sizes (L∞8). In general, males and marine fish (Hel-Hel) had higher k and smaller L∞8?than females and fish from the pond (Pyö-Pyö). Fish from 'hybrid' crosses exhibited k and L∞8?intermediate to the 'pure' crosses, but were more similar in both respects to the pure marine than to the pure pond fish. Thus population differentiation in k and L∞8?has a genetic basis, but additive genetic effects do not explain all the observed differences. k and L∞8?were negatively correlated within three cross-types (both 'hybrids' and Pyö-Pyö): low intrinsic growth rates were associated with increased asymptotic size. k and L∞8?were not correlated within the Hel-Hel cross: high intrinsic growth rate was not directly associated with reduced asymptotic size. Neither k nor L ∞8?predicted the age at maturation in Hel-Hel fish, and only poorly so in Pyö-Pyö fish. Conclusion: We discovered genetically based population differentiation in key growth-related life-history traits, but little or no evidence for a role of intrinsic growth rate or asymptotic size in determining the timing of maturation in ninespine stickleback. © 2013 Nurul Izza Ab Ghani. |
Persistent Identifier | http://hdl.handle.net/10722/292806 |
ISSN | 2019 Impact Factor: 1.094 2023 SCImago Journal Rankings: 0.200 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Ghani, Nurul Izza Ab | - |
dc.contributor.author | Kuparinen, Anna | - |
dc.contributor.author | Leinonen, Tuomas | - |
dc.contributor.author | Merilä, Juha | - |
dc.date.accessioned | 2020-11-17T14:57:15Z | - |
dc.date.available | 2020-11-17T14:57:15Z | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Evolutionary Ecology Research, 2013, v. 15, n. 7, p. 793-808 | - |
dc.identifier.issn | 1522-0613 | - |
dc.identifier.uri | http://hdl.handle.net/10722/292806 | - |
dc.description.abstract | Background: Growth rate is an important life-history trait that often shows sex- and population-specific differentiation in many organisms. Yet the relative contributions of additive genetic, non-additive genetic, environmental, and maternal effects underlying these differences remain largely unknown, especially in wild animal populations. Goal: To determine the relative contributions of additive genetic, non-additive genetic, and environmental effects underlying population differences in growth rate between two stickleback populations differing markedly in their body size. Organism: Ninespine stickleback (Pungitius pungitius). Methods: We crossed two phenotypically and genetically distinct populations to produce 'pure' marine (Hel-Hel; small sized), 'pure' pond (Pyö-Py ö; large sized), and 'hybrid' (Hel-Pyö and Pyö-Hel) offspring. We reared them in standardized common garden settings until maturation. Results: Analyses of Von Bertalanffy growth curve parameters revealed that sexes and crosstypes differed in their intrinsic growth rates (k) and asymptotic sizes (L∞8). In general, males and marine fish (Hel-Hel) had higher k and smaller L∞8?than females and fish from the pond (Pyö-Pyö). Fish from 'hybrid' crosses exhibited k and L∞8?intermediate to the 'pure' crosses, but were more similar in both respects to the pure marine than to the pure pond fish. Thus population differentiation in k and L∞8?has a genetic basis, but additive genetic effects do not explain all the observed differences. k and L∞8?were negatively correlated within three cross-types (both 'hybrids' and Pyö-Pyö): low intrinsic growth rates were associated with increased asymptotic size. k and L∞8?were not correlated within the Hel-Hel cross: high intrinsic growth rate was not directly associated with reduced asymptotic size. Neither k nor L ∞8?predicted the age at maturation in Hel-Hel fish, and only poorly so in Pyö-Pyö fish. Conclusion: We discovered genetically based population differentiation in key growth-related life-history traits, but little or no evidence for a role of intrinsic growth rate or asymptotic size in determining the timing of maturation in ninespine stickleback. © 2013 Nurul Izza Ab Ghani. | - |
dc.language | eng | - |
dc.relation.ispartof | Evolutionary Ecology Research | - |
dc.subject | Pungitius pungitius | - |
dc.subject | Maturation | - |
dc.subject | Growth rate | - |
dc.subject | Asymptotic length | - |
dc.subject | Common garden | - |
dc.subject | Von Bertalanffy | - |
dc.title | Population- and sex-specific divergence in growth patterns between two ninespine stickleback (Pungitius pungitius L) populations | - |
dc.type | Article | - |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.scopus | eid_2-s2.0-84894160330 | - |
dc.identifier.volume | 15 | - |
dc.identifier.issue | 7 | - |
dc.identifier.spage | 793 | - |
dc.identifier.epage | 808 | - |
dc.identifier.isi | WOS:000331380800005 | - |
dc.identifier.issnl | 1522-0613 | - |