Although physiological and ecological characteristics of cyanobacteria have been studied extensively for decades, unknown areas still remain greater than the already known. Recently, the development of omics techniques based on molecular biology has made it possible to view the ecosystem from a new and holistic perspective. The molecular mechanism of toxin production is being widely investigated, by comparative genomics and the transcriptomic studies. Biological interaction between bacteria and cyanobacteria is also explored: how their interactions and genetic biodiversity change depending on seasons and environmental factors, and how these interactions finally affect each component of ecosystem. Bioinformatics techniques have combined with ecoinformatics and omics data, enabling us to understand the underlying complex mechanisms of ecosystems. Particularly omics started to provide a whole picture of biological responses, occurring from all layers of hierarchical processes from DNA to metabolites. The expectation is growing further that algal blooms could be controlled more effectively in the near future. And an important insight for the successful bloom control would come from a novel blueprint drawn by omics studies.

Abstract
 서 론
 Microcystis의 종 구분과 독 성/비독성종
 남조류 유전형 (genotype)의 다양성
 박테리아 상호작용과 오믹스 (Omics) 분석
 결 론
 적 요
 References

• 안치용(한국생명공학연구원 세포공장연구센터 책임연구원) | Ahn, Chi-Yong (Cell Factory Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB)) Corresponding author