GWAS Analysis Indicated Importance of NF-κB Signaling Pathway in Host Resistance Against Motile Aeromonas Septicemia Disease in Catfish

Wenwen Wang, Suxu Tan, Jian Luo, Huitong Shi, Tao Zhou, Yujia Yang, Yulin Jin, Xiaozhu Wang, Donghong Niu, Zihao Yuan, Dongya Gao, Rex Dunham, Zhanjian "John" Liu

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Motile Aeromonas septicemia (MAS) disease caused by a bacterial pathogen, Aeromonas hydrophila, is an emerging but severe disease of catfish. Genetic enhancement of disease resistance is considered to be effective to control the disease. To provide an insight into the genomic basis of MAS disease resistance, in this study, we conducted a genome-wide association study (GWAS) to identify quantitative trait loci (QTL). A total of 1820 interspecific backcross catfish of 7 families were challenged with A. hydrophila, and 382 phenotypic extremes were selected for genotyping with the catfish 690 K SNP arrays. Three QTL on linkage group (LG) 2, 26 and 29 were identified to be significantly associated with MAS resistance. Within these regions, a total of 24 genes had known functions in immunity, 10 of which were involved in NF-κB signaling pathway, suggesting the importance of NF-κB signaling pathway in MAS resistance. In addition, three suggestively significant QTL were identified on LG 11, 17, and 20. The limited numbers of QTL involved in MAS resistance suggests that marker-assisted selection may be a viable approach for catfish breeding.

Original languageEnglish (US)
JournalMarine Biotechnology
DOIs
StatePublished - Jan 1 2019

Keywords

  • Disease resistance
  • Genome
  • GWAS
  • NF-κB
  • QTL

ASJC Scopus subject areas

  • Biotechnology
  • Aquatic Science

Fingerprint Dive into the research topics of 'GWAS Analysis Indicated Importance of NF-κB Signaling Pathway in Host Resistance Against Motile Aeromonas Septicemia Disease in Catfish'. Together they form a unique fingerprint.

  • Cite this