Rapid mosaic brain evolution under artificial selection for relative telencephalon size in the guppy (Poecilia reticulata)
| العنوان: | Rapid mosaic brain evolution under artificial selection for relative telencephalon size in the guppy (Poecilia reticulata) |
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| المؤلفون: | Alexander Kotrschal, Stephanie Fong, Mirjam Amcoff, Björn Rogell, W. van der Bijl, Niclas Kolm, Severine D. Buechel |
| المصدر: | Science Advances, 7(46) Science Advances Science Advances 7 (2021) 46 |
| بيانات النشر: | Cold Spring Harbor Laboratory, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Evolutionary Biology, Earth, Environmental, Ecological, and Space Sciences, biology, Cerebrum, Cognitive evolution, fungi, Morphological variation, SciAdv r-articles, Vertebrate, biology.organism_classification, Guppy, Behavioral Ecology, Gedragsecologie, medicine.anatomical_structure, Poecilia, Evolutionary biology, Cellular Neuroscience, biology.animal, Brain size, WIAS, medicine, Life Science, reproductive and urinary physiology, Selection (genetic algorithm), Research Article |
| الوصف: | Description Experimental evidence shows that mosaic evolution can drive brain morphology variation and potentially cognitive evolution. The mosaic brain evolution hypothesis, stating that brain regions can evolve relatively independently during cognitive evolution, is an important idea to understand how brains evolve with potential implications even for human brain evolution. Here, we provide the first experimental evidence for this hypothesis through an artificial selection experiment in the guppy (Poecilia reticulata). After four generations of selection on relative telencephalon volume (relative to brain size), we found substantial changes in telencephalon size but no changes in other regions. Further comparisons revealed that up-selected lines had larger telencephalon, while down-selected lines had smaller telencephalon than wild Trinidadian populations. Our results support that independent evolutionary changes in specific brain regions through mosaic brain evolution can be important facilitators of cognitive evolution. |
| وصف الملف: | application/pdf |
| تدمد: | 2375-2548 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1183e6493b533072972e3cbb86a38535 https://doi.org/10.1101/2021.03.31.437806 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....1183e6493b533072972e3cbb86a38535 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 23752548 |
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