Characterizing the Saltol quantitative trait locus for salinity tolerance in rice
This study characterized Pokkali-derived quantitative trait loci (QTLs) for seedling stage salinity tolerance in preparation for use in marker-assisted breeding. An analysis of 100 SSR markers on 140 IR29/Pokkali recombinant inbred lines (RILs) confirmed the location of the Saltol QTL on chromosome...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Springer
2010
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| Online Access: | https://hdl.handle.net/10568/166006 |
| _version_ | 1855524314561904640 |
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| author | Thomson, Michael J. de Ocampo, Marjorie Egdane, James Rahman, M. Akhlasur Sajise, Andres Godwin Adorada, Dante L. Tumimbang-Raiz, Ellen Blumwald, Eduardo Seraj, Zeba I. Singh, Rakesh K. Gregorio, Glenn B. Ismail, Abdelbagi M. |
| author_browse | Adorada, Dante L. Blumwald, Eduardo Egdane, James Gregorio, Glenn B. Ismail, Abdelbagi M. Rahman, M. Akhlasur Sajise, Andres Godwin Seraj, Zeba I. Singh, Rakesh K. Thomson, Michael J. Tumimbang-Raiz, Ellen de Ocampo, Marjorie |
| author_facet | Thomson, Michael J. de Ocampo, Marjorie Egdane, James Rahman, M. Akhlasur Sajise, Andres Godwin Adorada, Dante L. Tumimbang-Raiz, Ellen Blumwald, Eduardo Seraj, Zeba I. Singh, Rakesh K. Gregorio, Glenn B. Ismail, Abdelbagi M. |
| author_sort | Thomson, Michael J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | This study characterized Pokkali-derived quantitative trait loci (QTLs) for seedling stage salinity tolerance in preparation for use in marker-assisted breeding. An analysis of 100 SSR markers on 140 IR29/Pokkali recombinant inbred lines (RILs) confirmed the location of the Saltol QTL on chromosome 1 and identified additional QTLs associated with tolerance. Analysis of a series of backcross lines and near-isogenic lines (NILs) developed to better characterize the effect of the Saltol locus revealed that Saltol mainly acted to control shoot Na+/K+ homeostasis. Multiple QTLs were required to acquire a high level of tolerance. Unexpectedly, multiple Pokkali alleles at Saltol were detected within the RIL population and between backcross lines, and representative lines were compared with seven Pokkali accessions to better characterize this allelic variation. Thus, while the Saltol locus presents a complex scenario, it provides an opportunity for marker-assisted backcrossing to improve salt tolerance of popular varieties followed by targeting multiple loci through QTL pyramiding for areas with higher salt stress. |
| format | Journal Article |
| id | CGSpace166006 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2010 |
| publishDateRange | 2010 |
| publishDateSort | 2010 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1660062024-12-19T14:12:31Z Characterizing the Saltol quantitative trait locus for salinity tolerance in rice Thomson, Michael J. de Ocampo, Marjorie Egdane, James Rahman, M. Akhlasur Sajise, Andres Godwin Adorada, Dante L. Tumimbang-Raiz, Ellen Blumwald, Eduardo Seraj, Zeba I. Singh, Rakesh K. Gregorio, Glenn B. Ismail, Abdelbagi M. alleles chromosomes genetic variation homeostasis inbred lines near-isogenic lines quantitative trait loci salinity salt tolerance simple sequence repeats This study characterized Pokkali-derived quantitative trait loci (QTLs) for seedling stage salinity tolerance in preparation for use in marker-assisted breeding. An analysis of 100 SSR markers on 140 IR29/Pokkali recombinant inbred lines (RILs) confirmed the location of the Saltol QTL on chromosome 1 and identified additional QTLs associated with tolerance. Analysis of a series of backcross lines and near-isogenic lines (NILs) developed to better characterize the effect of the Saltol locus revealed that Saltol mainly acted to control shoot Na+/K+ homeostasis. Multiple QTLs were required to acquire a high level of tolerance. Unexpectedly, multiple Pokkali alleles at Saltol were detected within the RIL population and between backcross lines, and representative lines were compared with seven Pokkali accessions to better characterize this allelic variation. Thus, while the Saltol locus presents a complex scenario, it provides an opportunity for marker-assisted backcrossing to improve salt tolerance of popular varieties followed by targeting multiple loci through QTL pyramiding for areas with higher salt stress. 2010-09 2024-12-19T12:55:45Z 2024-12-19T12:55:45Z Journal Article https://hdl.handle.net/10568/166006 en Open Access Springer Thomson, Michael J.; de Ocampo, Marjorie; Egdane, James; Rahman, M. Akhlasur; Sajise, Andres Godwin; Adorada, Dante L.; Tumimbang-Raiz, Ellen; Blumwald, Eduardo; Seraj, Zeba I.; Singh, Rakesh K.; Gregorio, Glenn B. and Ismail, Abdelbagi M. 2010. Characterizing the Saltol quantitative trait locus for salinity tolerance in rice. Rice, Volume 3 no. 2-3 p. 148-160 |
| spellingShingle | alleles chromosomes genetic variation homeostasis inbred lines near-isogenic lines quantitative trait loci salinity salt tolerance simple sequence repeats Thomson, Michael J. de Ocampo, Marjorie Egdane, James Rahman, M. Akhlasur Sajise, Andres Godwin Adorada, Dante L. Tumimbang-Raiz, Ellen Blumwald, Eduardo Seraj, Zeba I. Singh, Rakesh K. Gregorio, Glenn B. Ismail, Abdelbagi M. Characterizing the Saltol quantitative trait locus for salinity tolerance in rice |
| title | Characterizing the Saltol quantitative trait locus for salinity tolerance in rice |
| title_full | Characterizing the Saltol quantitative trait locus for salinity tolerance in rice |
| title_fullStr | Characterizing the Saltol quantitative trait locus for salinity tolerance in rice |
| title_full_unstemmed | Characterizing the Saltol quantitative trait locus for salinity tolerance in rice |
| title_short | Characterizing the Saltol quantitative trait locus for salinity tolerance in rice |
| title_sort | characterizing the saltol quantitative trait locus for salinity tolerance in rice |
| topic | alleles chromosomes genetic variation homeostasis inbred lines near-isogenic lines quantitative trait loci salinity salt tolerance simple sequence repeats |
| url | https://hdl.handle.net/10568/166006 |
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