Sexual reproductive biology of Brachionus quadridentatus Hermanns (Rotifera: Monogononta)
This study examined important aspects of the sexual reproductive biology of the monogonont rotifer Brachionusquadridentatus Hermanns. Observations on the following was made: 1) Morphological description of the male, 2) Ananalysis of mating behavior, 3) An analysis of female and male life-span at 25o...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2006 |
| País: | México |
| Institución: | Universidad Autónoma de Baja California |
| Repositorio: | Redalyc-UABC |
| OAI Identifier: | oai:redalyc.org:57816108 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=57816108 |
| Access Level: | acceso abierto |
| Palabra clave: | Biología rotifer taxonomy evolution Rotifer mating behavior |
| Sumario: | This study examined important aspects of the sexual reproductive biology of the monogonont rotifer Brachionusquadridentatus Hermanns. Observations on the following was made: 1) Morphological description of the male, 2) Ananalysis of mating behavior, 3) An analysis of female and male life-span at 25oC, and 4) Morphometric characterizationof the three types of eggs known in this species and determination of hatching percentages of sexual eggs at 20 and25oC. SEM photographs of the male are included, the female and parthenogenetic and sexual eggs. Somecomplementary photographs with the light microscope are also included. The mating behavior of B. quadridentatus issimilar to those of other brachionids. Attempted copulations lasted on average 12.4 s, and completed copulationslasted on average 71.4 s. B. quadridentatus is the Brachionus species with the longest duration of copulation recordedso far. Photographs showing episodes of mating attempts and copulations are included. Mating attempts andcopulations are similar to those of other members of Brachionus. A comparison of the mating of B. quadridentatus withthat of other brachionids is also included |
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