Integrated Analysis of Long Non-Coding RNA and mRNA Expression in Different Colored Skin of Koi Carp

The study conducted an integrated analysis of long non-coding RNA (lncRNA) and mRNA expression in the black, white, and red skin of Koi carp, identifying 92 differentially expressed lncRNAs and 722 mRNAs. It revealed complex co-expression networks, suggesting that lncRNAs played a significant role in skin pigmentation through pathways such as melanogenesis and tyrosine metabolism. The research highlighted specific lncRNAs and mRNAs involved in pigmentation, such as Ccr_lnc5622441 and Pmela, and explored their roles through Gene Ontology and KEGG pathway analyses. The findings provided insights into the genetic mechanisms of skin color in koi carp and expanded the understanding of lncRNA functions in fish, offering valuable resources for future research.