Background: Diatoms play a great role in carbon fixation with about 20% of the whole fixation in the world. However, harmful algal bloom as known as red tide is a major problem in environment and fishery industry. Even though intensive studies have been conducted so far, the molecular mechanism behind harmful algal bloom was not fully understood. There are two major diatoms have been sequenced, but more diatoms should be examined at the whole genome level, and evolutionary genome studies were required to understand the landscape of molecular mechanism of the harmful algal bloom. Results: Here we sequenced the genome of Skeletonema costatum, which is the dominant diatom in Japan causing a harmful algal bloom, and also performed RNA-sequencing analysis for conditions where harmful algal blooms often occur. As results, we found that both evolutionary genomic and comparative transcriptomic studies revealed genes for oxidative stress response and response to cytokinin is a key for the proliferation of the diatom. Conclusions: Diatoms causing harmful algal blooms have gained multi-copy of genes related to oxidative stress response and response to cytokinin and obtained an ability to intensive gene expression at the blooms.
|Original language||English (US)|
|State||Published - Oct 22 2018|
Bibliographical noteFunding Information:
This work was funded by Grants-in-Aid for Scientific Research (KAKENHI) 17H06399 and Grant for Basic Science Research Projects from the Sumitomo Foundation to AO, and Science and Technology Research Partnership for sustainable Development to SN. This work has been supported partly by funding from King Abdullah University of Science and Technology (KAUST) to TG.
© 2018 The Author(s).
- Harmful algal bloom
- Oxidative stress response
- Red tide
- Response to cytokinin
ASJC Scopus subject areas
FingerprintDive into the research topics of 'Comparative genome and transcriptome analysis of diatom, Skeletonema costatum, reveals evolution of genes for harmful algal bloom'. Together they form a unique fingerprint.
Comparative genome and transcriptome analysis of diatom, Skeletonema costatum, reveals evolution of genes for harmful algal bloom
Ogura, A. (Creator), Akizuki, Y. (Creator), Imoda, H. (Creator), Mineta, K. (Creator), Gojobori, T. (Creator), Nagai, S. (Creator), Ogura, A. (Creator), Akizuki, Y. (Creator), Imoda, H. (Creator) & Nagai, S. (Creator), figshare, 2018
DOI: 10.6084/m9.figshare.c.4275500.v1, http://hdl.handle.net/10754/664220