Comprehensive Characterization of Multitissue Expression Landscape, Co-Expression Networks and Positive Selection in Pikeperch.
Julien Alban Nguinkal,Marieke Verleih,Lidia de los Ríos-Pérez,Ronald M. Brunner,Arne Sahm,Saptarshi Bej,Alexander Rebl,Tom Goldammer +7 more
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TLDR
In this article, a trancriptome atlas for pikeperch (Sander lucioperca) was built using 10 vital tissues collected in eight animals to detect the tissue-specificity of gene expression and co-expression network modules, and investigate genome-wide selective signatures in the Percidae fish family.Abstract:
Promising efforts are ongoing to extend genomics resources for pikeperch (Sander lucioperca), a species of high interest for the sustainable European aquaculture sector. Although previous work, including reference genome assembly, transcriptome sequence, and single-nucleotide polymorphism genotyping, added a great wealth of genomic tools, a comprehensive characterization of gene expression across major tissues in pikeperch still remains an unmet research need. Here, we used deep RNA-Sequencing of ten vital tissues collected in eight animals to build a high-confident and annotated trancriptome atlas, to detect the tissue-specificity of gene expression and co-expression network modules, and to investigate genome-wide selective signatures in the Percidae fish family. Pathway enrichment and protein-protein interaction network analyses were performed to characterize the unique biological functions of tissue-specific genes and co-expression modules. We detected strong functional correlations and similarities of tissues with respect to their expression patterns-but also significant differences in the complexity and composition of their transcriptomes. Moreover, functional analyses revealed that tissue-specific genes essentially play key roles in the specific physiological functions of the respective tissues. Identified network modules were also functionally coherent with tissues' main physiological functions. Although tissue specificity was not associated with positive selection, several genes under selection were found to be involved in hypoxia, immunity, and gene regulation processes, that are crucial for fish adaption and welfare. Overall, these new resources and insights will not only enhance the understanding of mechanisms of organ biology in pikeperch, but also complement the amount of genomic resources for this commercial species.read more
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Systematic identification of smORFs in domestic silkworm (Bombyx mori)
Linrong Wan,Wenfu Xiao,Ziyan Huang,Anlian Zhou,Ya Juan Jiang,Bangxing Zou,Binbin Liu,Cao Deng,Youhong Zhang +8 more
TL;DR: In this article , the authors identified and analyzed smORFs in the Silkworm using comprehensive methods and found that at least 738 highly reliable SMORFs were found in B. mori and 34,401 possible SMORF were partially supported.
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