Why do velvet worm spermatozoa swim for years?
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| 作者: | |
|---|---|
| 格式: | artículo original |
| 狀態: | Versión publicada |
| Fecha de Publicación: | 2019 |
| 實物特徵: | The sperm of many onychophorans must cross body walls and swim for years before fertilizing an egg. We propose that the cause for such obstacles is the high cost of reproduction in these animals, which leads females to select eggs early in their development; and to invest heavily in their atypically large Golgi apparatus and in the production of glycogen. Velvet worm spermatozoa are subjected to a marathon that selects the most resistant. |
| País: | Portal de Revistas UCR |
| 機構: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| 語言: | Inglés Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/36240 |
| 在線閱讀: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/36240 |
| Access Level: | acceso abierto |
| Palabra clave: | female and male gametes high reproductive investment of onychophorans environmental pressure female selection gametos femeninos y masculinos alta inversión reproductiva de onicóforos presión ambiental selección femenina |