Domestication modulates the expression of genes involved in neurogenesis in high‐quality eggs of Sander lucioperca. Issue 9 (30th August 2020)

• Record Type: Journal Article
• Authors: Żarski, Daniel; Le Cam, Aurelie; Nynca, Joanna; Klopp, Christophe; Ciesielski, Sławomir; Sarosiek, Beata; Montfort, Jerome; Król, Jarosław; Fontaine, Pascal; Ciereszko, Andrzej; Bobe, Julien
• Is Part Of: Molecular reproduction and development. Volume 87:Issue 9(2020)
• Page Start: 934
• Page End: 951
• Publication Date: 2020-08-30
• Subjects: aquaculture -- microarray -- pikeperch -- transcriptomics; Reproduction -- Periodicals; Molecular biology -- Periodicals; Molecular genetics -- Periodicals; Embryology -- Periodicals; 571.8
• DOI: 10.1002/mrd.23414
• Languages: English
• ISSNs: 1040-452X

Abstract

Abstract: Pikeperch, Sander lucioperca, is a species of high interest to the aquaculture. The expansion of its production can only be achieved by furthering domestication level. However, the mechanisms driving the domestication process in finfishes are poorly understood. Transcriptome profiling of eggs was found to be a useful tool allowing understanding of the domestication process in teleosts. In this study, using next‐generation sequencing, the first pikeperch transcriptome has been generated as well as pikeperch‐specific microarray comprising 35, 343 unique probes. Next, we performed transcriptome profiling of eggs obtained from wild and domesticated populations. We found 710 differentially expressed genes that were linked mostly to nervous system development. These results provide new insights into processes that are directly involved in the domestication of finfishes. It can be suggested that all the identified processes were predetermined by the maternally derived set of genes contained in the unfertilized eggs. This allows us to suggest that fish behavior, along with many other processes, can be predetermined at the cellular level and may have significant implications on the adaptation of cultured fish to the natural environment. This also allows to suggest that fish behavior should be considered as a very important pikeperch aquaculture selection trait. Abstract : Comparative transcriptomic profiling of high‐quality eggs obtained from wild and domesticated pikeperch indicates that maternally derived genes involved in neurodevelopment of the embryo are important in adaptation of finfishes to captive conditions. This also allows to suggest that fish behavior should be considered as a very important pikeperch aquaculture selection trait.