Gene expression profiling of a cold-shocked earthworm Eisenia andrei

Hyeng Soo Kim, Chi Hyun Ahn, Yong Soo Park, Hum Dai Park, Ki Seok Koh, Zae Young Ryoo, Soon Cheol Park, Sanggyu Lee

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


To identify genes that are modulated under cold-stress conditions in the earthworm Eisenia andrei, we performed a genome-wide analysis of gene expression in cold-shocked earthworms by using Serial Analysis of Gene Expression (SAGE). We identified 5,977 and 5,407 unique SAGE tags under normal and cold-stressed conditions, respectively. The majority of the SAGE tags did not match to any known expressed sequences, due to a paucity of expression data in earthworms. We converted the statistically significant SAGE tags for the cold-stressed condition into expressed sequence tags (ESTs), and the results showed that particular genes associated with energy homeostasis, cellular defense mechanisms, and ion balance were up-regulated or down-regulated. We constructed a regulatory network of some of these genes and identified rps-6 as a core gene in the cold-response regulatory-gene network. Our data provide a baseline for gene expression studies of cold shock in the Lumbricidae.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
Issue number1
StatePublished - Jan 2012


  • Cold stress
  • Earthworm
  • Eisenia andrei
  • Gene expression
  • SAGE
  • Transcription


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