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| Content Provider | Springer Nature Link |
|---|---|
| Author | Weeks, Stephen C. Brantner, Justin S. Astrop, Timothy I. Ott, Donald W. Rabet, Nicolas |
| Copyright Year | 2013 |
| Abstract | The evolution of reproductive systems has intrigued evolutionary biologists for well over a century. Recent empirical and theoretical work has elucidated the evolution of dioecy (separate males and females) from hermaphroditism in many plant species. The reverse transition, evolving hermaphroditism from dioecy, has occurred many times in animals, and yet is poorly studied relative to its reverse analog in plants. Crustaceans in the sub-order Spinicaudata have evolved hermaphroditism from dioecy three separate times, in some cases forming all-hermaphroditic species and in others forming androdioecious (males + hermaphrodites) species. Herein we report evidence of hermaphroditism in a fourth spinicaudatan genus: the newly described Calalimnadia. We present sex ratio and anatomical evidence that Calalimnadia mahei comprises selfing hermaphrodites, with no males being found in over 10,000 offspring reared. We combine these reproductive results with those of other Spinicaudata to estimate the evolution of hermaphroditism in this crustacean sub-order. We use these genetic data combined with anatomical evidence to suggest that C. mahei represents a fourth, independent derivation of hermaphroditism from dioecy in these reproductively labile crustaceans. |
| Starting Page | 251 |
| Ending Page | 261 |
| Page Count | 11 |
| File Format | |
| ISSN | 00713260 |
| Journal | Evolutionary Biology |
| Volume Number | 41 |
| Issue Number | 2 |
| e-ISSN | 19342845 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2013-12-13 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Sexual systems Mating system Calalimnadia mahei Self-fertilization Evolutionary Biology Ecology Developmental Biology Human Genetics Animal Genetics and Genomics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology, Evolution, Behavior and Systematics |
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