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1 Online-Ressource (176 Seiten, 8351 KB)
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Content:
The African weakly electric fishes (Mormyridae) exhibit a remarkable adaptive radiation possibly due to their species-specific electric organ discharges (EODs). It is produced by a muscle-derived electric organ that is located in the caudal peduncle. Divergence in EODs acts as a pre-zygotic isolation mechanism to drive species radiations. However, the mechanism behind the EOD diversification are only partially understood. The aim of this study is to explore the genetic basis of EOD diversification from the gene expression level across Campylomormyrus species/hybrids and ontogeny. I firstly produced a high quality genome of the species C. compressirostris as a valuable resource to understand the electric fish evolution. The next study compared the gene expression pattern between electric organs and skeletal muscles in Campylomormyrus species/hybrids with different types of EOD duration. I identified several candidate genes with an electric organ-specific expression, e.g. KCNA7a, KLF5, KCNJ2, SCN4aa, NDRG3, MEF2. The overall genes ...
Note:
Dissertation Universität Potsdam 2024
Additional Edition:
Erscheint auch als Druck-Ausgabe Cheng, Feng Evolution and ontogeny of electric organ discharge in African weakly electric fish genus Campylomormyrus Potsdam, 2023
Language:
English
Keywords:
Hochschulschrift
DOI:
10.25932/publishup-63017
URN:
urn:nbn:de:kobv:517-opus4-630172
Author information:
Kirschbaum, Frank
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