Identification of salt-tolerant QTLs with strong genetic background effect using two sets of reciprocal introgression lines in rice
Effect of genetic background on detection of quantitative trait locus (QTL) governing salinity tolerance (ST) was studied using two sets of reciprocal introgression lines (ILs) derived from a cross between a moderately salinity tolerant japonica variety, Xiushui09 from China, and a drought tolerant...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Canadian Science Publishing
2012
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| Online Access: | https://hdl.handle.net/10568/165820 |
| _version_ | 1855520813748322304 |
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| author | Cheng, Lirui Wang, Yun Meng, Lijun Hu, Xia Cui, Yanru Sun, Yong Zhu, Ling-Hua Ali, Jauhar Xu, Jianlong Li, Zhikang |
| author_browse | Ali, Jauhar Cheng, Lirui Cui, Yanru Hu, Xia Li, Zhikang Meng, Lijun Sun, Yong Wang, Yun Xu, Jianlong Zhu, Ling-Hua |
| author_facet | Cheng, Lirui Wang, Yun Meng, Lijun Hu, Xia Cui, Yanru Sun, Yong Zhu, Ling-Hua Ali, Jauhar Xu, Jianlong Li, Zhikang |
| author_sort | Cheng, Lirui |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Effect of genetic background on detection of quantitative trait locus (QTL) governing salinity tolerance (ST) was studied using two sets of reciprocal introgression lines (ILs) derived from a cross between a moderately salinity tolerant japonica variety, Xiushui09 from China, and a drought tolerant but salinity susceptible indica breeding line, IR2061–520–6-9 from the Philippines. Salt toxicity symptoms (SST) on leaves, days to seedling survival (DSS), and sodium and potassium uptake by shoots were measured under salinity stress of 140 mmol/L of NaCl. A total of 47 QTLs, including 26 main-effect QTLs (M-QTLs) and 21 epistatic QTLs (E-QTLs), were identified from the two sets of reciprocal ILs. Among the 26 M-QTLs, only four (15.4%) were shared in the reciprocal backgrounds while no shared E-QTLs were detected, indicating that ST QTLs, especially E-QTLs, were very specific to the genetic background. Further, 78.6% of the M-QTLs for SST and DSS identified in the reciprocal ILs were also detected in the recombinant inbred lines (RILs) from the same cross, which clearly brings out the background effect on ST QTL detection and its utilization in ST breeding. The detection of ILs with various levels of pyramiding of nonallelic M-QTL alleles for ST from Xiushui09 into IR2061-520-6-9 allowed us to further improve the ST in rice. |
| format | Journal Article |
| id | CGSpace165820 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Canadian Science Publishing |
| publisherStr | Canadian Science Publishing |
| record_format | dspace |
| spelling | CGSpace1658202025-05-14T10:24:00Z Identification of salt-tolerant QTLs with strong genetic background effect using two sets of reciprocal introgression lines in rice Cheng, Lirui Wang, Yun Meng, Lijun Hu, Xia Cui, Yanru Sun, Yong Zhu, Ling-Hua Ali, Jauhar Xu, Jianlong Li, Zhikang alleles drought drought resistance drought stress gene interaction inbred lines introgression leaves nutrient uptake plant nutrition potassium quantitative trait loci salinity salt tolerance seedlings sodium sodium chloride Effect of genetic background on detection of quantitative trait locus (QTL) governing salinity tolerance (ST) was studied using two sets of reciprocal introgression lines (ILs) derived from a cross between a moderately salinity tolerant japonica variety, Xiushui09 from China, and a drought tolerant but salinity susceptible indica breeding line, IR2061–520–6-9 from the Philippines. Salt toxicity symptoms (SST) on leaves, days to seedling survival (DSS), and sodium and potassium uptake by shoots were measured under salinity stress of 140 mmol/L of NaCl. A total of 47 QTLs, including 26 main-effect QTLs (M-QTLs) and 21 epistatic QTLs (E-QTLs), were identified from the two sets of reciprocal ILs. Among the 26 M-QTLs, only four (15.4%) were shared in the reciprocal backgrounds while no shared E-QTLs were detected, indicating that ST QTLs, especially E-QTLs, were very specific to the genetic background. Further, 78.6% of the M-QTLs for SST and DSS identified in the reciprocal ILs were also detected in the recombinant inbred lines (RILs) from the same cross, which clearly brings out the background effect on ST QTL detection and its utilization in ST breeding. The detection of ILs with various levels of pyramiding of nonallelic M-QTL alleles for ST from Xiushui09 into IR2061-520-6-9 allowed us to further improve the ST in rice. 2012-01 2024-12-19T12:55:31Z 2024-12-19T12:55:31Z Journal Article https://hdl.handle.net/10568/165820 en Canadian Science Publishing Cheng, Lirui; Wang, Yun; Meng, Lijun; Hu, Xia; Cui, Yanru; Sun, Yong; Zhu, Linghua; Ali, Jauhar; Xu, Jianlong and Li, Zhikang. 2012. Identification of salt-tolerant QTLs with strong genetic background effect using two sets of reciprocal introgression lines in rice. Genome, Volume 55 no. 1 p. 45-55 |
| spellingShingle | alleles drought drought resistance drought stress gene interaction inbred lines introgression leaves nutrient uptake plant nutrition potassium quantitative trait loci salinity salt tolerance seedlings sodium sodium chloride Cheng, Lirui Wang, Yun Meng, Lijun Hu, Xia Cui, Yanru Sun, Yong Zhu, Ling-Hua Ali, Jauhar Xu, Jianlong Li, Zhikang Identification of salt-tolerant QTLs with strong genetic background effect using two sets of reciprocal introgression lines in rice |
| title | Identification of salt-tolerant QTLs with strong genetic background effect using two sets of reciprocal introgression lines in rice |
| title_full | Identification of salt-tolerant QTLs with strong genetic background effect using two sets of reciprocal introgression lines in rice |
| title_fullStr | Identification of salt-tolerant QTLs with strong genetic background effect using two sets of reciprocal introgression lines in rice |
| title_full_unstemmed | Identification of salt-tolerant QTLs with strong genetic background effect using two sets of reciprocal introgression lines in rice |
| title_short | Identification of salt-tolerant QTLs with strong genetic background effect using two sets of reciprocal introgression lines in rice |
| title_sort | identification of salt tolerant qtls with strong genetic background effect using two sets of reciprocal introgression lines in rice |
| topic | alleles drought drought resistance drought stress gene interaction inbred lines introgression leaves nutrient uptake plant nutrition potassium quantitative trait loci salinity salt tolerance seedlings sodium sodium chloride |
| url | https://hdl.handle.net/10568/165820 |
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