Artículo
Heritability of morphological and life history traits in a pelagic tunicate
Fecha de publicación:
01/2011
Editorial:
Inter-research
Revista:
Marine Ecology Progress Series
ISSN:
0171-8630
e-ISSN:
1616-1599
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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.
Palabras clave:
Life History Traits
,
Individual Variability
,
Heritability
,
Oikopleura Dioica
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Citación
Lobon, Carla M.; Acuña, José L.; López Alvarez, Marcos; Capitanio, Fabiana Lia; Heritability of morphological and life history traits in a pelagic tunicate; Inter-research; Marine Ecology Progress Series; 422; 1-2011; 145-154
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