Symbiosis Islands
A symbiosis island is a genomic island that confers upon the bacterium carrying it the ability to form a mutualistic relationship with a eukaryotic host. The symbiosis island of Mesorhizobium loti strain R7A is a 501.8-kb chromosomally integrated element that is able to excise and transfer by conjug...
| Main Authors: | , , , |
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| Format: | Book Chapter |
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Elsevier
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/24143 |
| _version_ | 1848751347342508032 |
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| author | Ronson, C. Hynes, M. Ramsay, Joshua Sullivan, J. |
| author_facet | Ronson, C. Hynes, M. Ramsay, Joshua Sullivan, J. |
| author_sort | Ronson, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A symbiosis island is a genomic island that confers upon the bacterium carrying it the ability to form a mutualistic relationship with a eukaryotic host. The symbiosis island of Mesorhizobium loti strain R7A is a 501.8-kb chromosomally integrated element that is able to excise and transfer by conjugation to nonsymbiotic mesorhizobia in the environment. The recipients are converted to symbionts able to nodulate and fix nitrogen with Lotus species. The island integrates into a phe-tRNA gene, reconstructing the gene at one (left) end of the island and producing a 17-bp direct repeat of the 3′ end of the tRNA gene at the other end. The island has a mosaic structure suggesting that it evolved in a stepwise fashion via multiple recombination events. It is a member of an emerging class of acquired genetic elements termed ‘integrative and conjugative elements’ that contribute to the diversification and adaptation of bacteria to environmental niches. |
| first_indexed | 2025-11-14T07:51:17Z |
| format | Book Chapter |
| id | curtin-20.500.11937-24143 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:51:17Z |
| publishDate | 2013 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-241432017-09-13T13:56:22Z Symbiosis Islands Ronson, C. Hynes, M. Ramsay, Joshua Sullivan, J. Integrative and conjugative element Conjugation Symbiosis Nitrogen fixation Quorum sensing Horizontal gene transfer Nodulation Genomic island A symbiosis island is a genomic island that confers upon the bacterium carrying it the ability to form a mutualistic relationship with a eukaryotic host. The symbiosis island of Mesorhizobium loti strain R7A is a 501.8-kb chromosomally integrated element that is able to excise and transfer by conjugation to nonsymbiotic mesorhizobia in the environment. The recipients are converted to symbionts able to nodulate and fix nitrogen with Lotus species. The island integrates into a phe-tRNA gene, reconstructing the gene at one (left) end of the island and producing a 17-bp direct repeat of the 3′ end of the tRNA gene at the other end. The island has a mosaic structure suggesting that it evolved in a stepwise fashion via multiple recombination events. It is a member of an emerging class of acquired genetic elements termed ‘integrative and conjugative elements’ that contribute to the diversification and adaptation of bacteria to environmental niches. 2013 Book Chapter http://hdl.handle.net/20.500.11937/24143 10.1016/B978-0-12-374984-0.01497-2 Elsevier restricted |
| spellingShingle | Integrative and conjugative element Conjugation Symbiosis Nitrogen fixation Quorum sensing Horizontal gene transfer Nodulation Genomic island Ronson, C. Hynes, M. Ramsay, Joshua Sullivan, J. Symbiosis Islands |
| title | Symbiosis Islands |
| title_full | Symbiosis Islands |
| title_fullStr | Symbiosis Islands |
| title_full_unstemmed | Symbiosis Islands |
| title_short | Symbiosis Islands |
| title_sort | symbiosis islands |
| topic | Integrative and conjugative element Conjugation Symbiosis Nitrogen fixation Quorum sensing Horizontal gene transfer Nodulation Genomic island |
| url | http://hdl.handle.net/20.500.11937/24143 |