eCite Digital Repository
The base composition of the krill genome and its potential susceptibility to damage by UV-B
Citation
Jarman, SN and Elliott, N and Nicol, S and McMinn, A and Newman, SJ, The base composition of the krill genome and its potential susceptibility to damage by UV-B, Antarctic Science, 11, (1) pp. 23-26. ISSN 0954-1020 (1999) [Refereed Article]
DOI: doi:10.1017/S0954102099000048
Abstract
We have determined the base composition (percentage of guanine-cytosine base pairs, GC%) of total DNA from Euphausia superba to be 32% ± 0.5%. This is the lowest GC% recorded for a metazoan. Low GC% DNA has high concentrations of thymine (T) residues and consequently a greater abundance of adjacent T residues [T(n) arrays]. Ultraviolet B (280-320 nm, UV-B) radiation damages DNA primarily at (T)n arrays, so we suggest that krill DNA may be more susceptible to damage from increased levels of UV-B radiation over the Southern Ocean than the DNA of other Antarctic organisms.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Research Division: | Biological Sciences |
| Research Group: | Genetics |
| Research Field: | Genome structure and regulation |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the environmental sciences |
| UTAS Author: | Jarman, SN (Dr Simon Jarman) |
| UTAS Author: | McMinn, A (Professor Andrew McMinn) |
| UTAS Author: | Newman, SJ (Mr Stuart Newman) |
| ID Code: | 16907 |
| Year Published: | 1999 |
| Web of Science® Times Cited: | 27 |
| Deposited By: | IASOS |
| Deposited On: | 1999-08-01 |
| Last Modified: | 2000-05-20 |
| Downloads: | 0 |
Repository Staff Only: item control page