| No. | Title | Authors | Journal |
|---|---|---|---|
| 50 | The exceptionally large genome of the harmful red tide dinoflagellate Cochlodinium polykrikoides Margalef (Dinophyceae): determination by flow cytometry | 23. HH. Hong, HG. Lee, J. Jo, H. Kim, SM. Kim, J. Park, C. Jeon, HS Kang, M. Park, C. Park and K. Kim | ALGAE. (2016) 31(4): 373-378 |
Abstract
Cochlodinium polykrikoides is a red-tide forming dinoflagellate that causes significant worldwide impacts on aquacul- ture industries and the marine ecosystem. There have been extensive studies on managing and preventing C. polykrikoi- des blooms, but it has been difficult to identify an effective method to control the bloom development. There is also limited genome information on the molecular mechanisms involved in its various ecophysiology and metabolism pro- cesses. Thus, comprehensive genome information is required to better understand harmful algal blooms caused by C. polykrikoides. We estimated the C. polykrikoides genome size using flow cytometry, with detection of the fluorescence of DNA stained with propidium iodide (PI). The nuclear genome sizes of C. polykrikoides were 100.97 and 110.54 Gb, as calculated by comparing their mean fluorescence intensity (MFI) to the MFI of Mus musculus, which is 2.8 Gb. The ex- ceptionally large genome size of C. polykrikoides might indicate its complex physiological and metabolic characteristics. Our optimized protocol for estimating the nuclear genome size of a dinoflagellate using flow cytometry with PI can be applied in studies of other marine organisms.
Cochlodinium polykrikoides is a red-tide forming dinoflagellate that causes significant worldwide impacts on aquacul- ture industries and the marine ecosystem. There have been extensive studies on managing and preventing C. polykrikoi- des blooms, but it has been difficult to identify an effective method to control the bloom development. There is also limited genome information on the molecular mechanisms involved in its various ecophysiology and metabolism pro- cesses. Thus, comprehensive genome information is required to better understand harmful algal blooms caused by C. polykrikoides. We estimated the C. polykrikoides genome size using flow cytometry, with detection of the fluorescence of DNA stained with propidium iodide (PI). The nuclear genome sizes of C. polykrikoides were 100.97 and 110.54 Gb, as calculated by comparing their mean fluorescence intensity (MFI) to the MFI of Mus musculus, which is 2.8 Gb. The ex- ceptionally large genome size of C. polykrikoides might indicate its complex physiological and metabolic characteristics. Our optimized protocol for estimating the nuclear genome size of a dinoflagellate using flow cytometry with PI can be applied in studies of other marine organisms.