Heritability of morphological and life history traits in a pelagic tunicate
Populations may adapt in response to selection pressures imposed by global environmental change. In marine zooplankton, measurements of the heritability of key life history characters, and thus the potential for evolution, are still rare. Here we demonstrate the feasibility of conducting controlled...
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Inglés |
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2011
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_01718630_v422_n_p145_Lobon |
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paperaa:paper_01718630_v422_n_p145_Lobon2023-06-12T16:47:03Z Heritability of morphological and life history traits in a pelagic tunicate Mar. Ecol. Prog. Ser. 2011;422:145-154 Lobón, C.M. Acuna, J.L. López-Álvarez, M. Capitanio, F.L. Heritability Individual variability Life history traits Oikopleura dioica genetic variation heritability individual variation invertebrate laboratory method life history trait morphology wild population zooplankton Oikopleura dioica Urochordata Populations may adapt in response to selection pressures imposed by global environmental change. In marine zooplankton, measurements of the heritability of key life history characters, and thus the potential for evolution, are still rare. Here we demonstrate the feasibility of conducting controlled mating experiments with the dioecious appendicularian Oikopleura dioica to explore the narrow-sense heritability and genetic correlation among morphological and life history traits. At our standard laboratory conditions (15 ± 1°C, 100 μg C l-1), mature females were larger (1.213 ± 0.19 mm, mean ± SD) and lived longer (8.5 ± 2.18 d) than did males (1.115 ± 0.15 mm, 7.6 ± 2.07 d). The heritability (±SE) of morphological characters was low (trunk size, 0.37 ± 0.25; house size, 0.39 ± 0.23) to moderate (tail length, 0.50 ± 0.31). In contrast, an important life history trait, lifespan, showed high heritability (0.89 ± 0.47) and may therefore respond rapidly to selection pressure, either in the laboratory or in the wild. © Inter-Research 2011. Fil:Capitanio, F.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01718630_v422_n_p145_Lobon |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| language |
Inglés |
| orig_language_str_mv |
eng |
| topic |
Heritability Individual variability Life history traits Oikopleura dioica genetic variation heritability individual variation invertebrate laboratory method life history trait morphology wild population zooplankton Oikopleura dioica Urochordata |
| spellingShingle |
Heritability Individual variability Life history traits Oikopleura dioica genetic variation heritability individual variation invertebrate laboratory method life history trait morphology wild population zooplankton Oikopleura dioica Urochordata Lobón, C.M. Acuna, J.L. López-Álvarez, M. Capitanio, F.L. Heritability of morphological and life history traits in a pelagic tunicate |
| topic_facet |
Heritability Individual variability Life history traits Oikopleura dioica genetic variation heritability individual variation invertebrate laboratory method life history trait morphology wild population zooplankton Oikopleura dioica Urochordata |
| description |
Populations may adapt in response to selection pressures imposed by global environmental change. In marine zooplankton, measurements of the heritability of key life history characters, and thus the potential for evolution, are still rare. Here we demonstrate the feasibility of conducting controlled mating experiments with the dioecious appendicularian Oikopleura dioica to explore the narrow-sense heritability and genetic correlation among morphological and life history traits. At our standard laboratory conditions (15 ± 1°C, 100 μg C l-1), mature females were larger (1.213 ± 0.19 mm, mean ± SD) and lived longer (8.5 ± 2.18 d) than did males (1.115 ± 0.15 mm, 7.6 ± 2.07 d). The heritability (±SE) of morphological characters was low (trunk size, 0.37 ± 0.25; house size, 0.39 ± 0.23) to moderate (tail length, 0.50 ± 0.31). In contrast, an important life history trait, lifespan, showed high heritability (0.89 ± 0.47) and may therefore respond rapidly to selection pressure, either in the laboratory or in the wild. © Inter-Research 2011. |
| format |
Artículo Artículo publishedVersion |
| author |
Lobón, C.M. Acuna, J.L. López-Álvarez, M. Capitanio, F.L. |
| author_facet |
Lobón, C.M. Acuna, J.L. López-Álvarez, M. Capitanio, F.L. |
| author_sort |
Lobón, C.M. |
| title |
Heritability of morphological and life history traits in a pelagic tunicate |
| title_short |
Heritability of morphological and life history traits in a pelagic tunicate |
| title_full |
Heritability of morphological and life history traits in a pelagic tunicate |
| title_fullStr |
Heritability of morphological and life history traits in a pelagic tunicate |
| title_full_unstemmed |
Heritability of morphological and life history traits in a pelagic tunicate |
| title_sort |
heritability of morphological and life history traits in a pelagic tunicate |
| publishDate |
2011 |
| url |
http://hdl.handle.net/20.500.12110/paper_01718630_v422_n_p145_Lobon |
| work_keys_str_mv |
AT loboncm heritabilityofmorphologicalandlifehistorytraitsinapelagictunicate AT acunajl heritabilityofmorphologicalandlifehistorytraitsinapelagictunicate AT lopezalvarezm heritabilityofmorphologicalandlifehistorytraitsinapelagictunicate AT capitaniofl heritabilityofmorphologicalandlifehistorytraitsinapelagictunicate |
| _version_ |
1769810333805838336 |