Breeding by selective introgression: Theory, practices, and lessons learned from rice
Future demands for increased productivity and resilience to abiotic/biotic stresses of major crops require new technologies of breeding by design (BBD) built on massive information from functional and population genomics research. A novel strategy of breeding by selective introgression (BBSI) has be...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Elsevier
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/164258 |
| _version_ | 1855518927229026304 |
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| author | Zhang, Fan Shi, Yingyao Ali, Jauhar Xu, Jianlong Li, Zhikang |
| author_browse | Ali, Jauhar Li, Zhikang Shi, Yingyao Xu, Jianlong Zhang, Fan |
| author_facet | Zhang, Fan Shi, Yingyao Ali, Jauhar Xu, Jianlong Li, Zhikang |
| author_sort | Zhang, Fan |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Future demands for increased productivity and resilience to abiotic/biotic stresses of major crops require new technologies of breeding by design (BBD) built on massive information from functional and population genomics research. A novel strategy of breeding by selective introgression (BBSI) has been proposed and practiced for simultaneous improvement, genetic dissection and allele mining of complex traits to realize BBD. BBSI has three phases: a) developing large numbers of trait-specific introgression lines (ILs) using backcross breeding in elite genetic backgrounds as the material platform of BBD; b) efficiently identifying genes or quantitative trait loci (QTL) and mining desirable alleles affecting different target traits from diverse donors as the information platform of BBD; and c) developing superior cultivars by BBD using designed QTL pyramiding or marker assisted recurrent selection. Phase (a) has been implemented massively in rice by many Chinese research institutions and IRRI, resulting in the development of many new green super rice cultivars plus large numbers of ILs in 30 + elite genetic backgrounds. Phase (b) has been demonstrated in a series of proof-of-concept studies of high-efficiency genetic dissection of rice yield and tolerance to abiotic stresses using ILs and DNA markers. Phase (c) has also been implemented by designed QTL pyramiding, resulting in a prototype of BBD in several successful cases. The BBSI strategy can be easily extended for simultaneous trait improvement, efficient gene and QTL discovery and allele mining of complex traits using advanced breeding lines from crosses between a common ‘‘backbone” parent and a set of elite parents in conventional pedigree breeding programs. BBSI can be relatively easily adopted by breeding programs with small budgets, but the BBSI-based BBD strategy can be fully and more efficiently implemented by large seed companies with sufficient capacity. |
| format | Journal Article |
| id | CGSpace164258 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1642582024-12-19T14:12:08Z Breeding by selective introgression: Theory, practices, and lessons learned from rice Zhang, Fan Shi, Yingyao Ali, Jauhar Xu, Jianlong Li, Zhikang agronomy and crop science plant science Future demands for increased productivity and resilience to abiotic/biotic stresses of major crops require new technologies of breeding by design (BBD) built on massive information from functional and population genomics research. A novel strategy of breeding by selective introgression (BBSI) has been proposed and practiced for simultaneous improvement, genetic dissection and allele mining of complex traits to realize BBD. BBSI has three phases: a) developing large numbers of trait-specific introgression lines (ILs) using backcross breeding in elite genetic backgrounds as the material platform of BBD; b) efficiently identifying genes or quantitative trait loci (QTL) and mining desirable alleles affecting different target traits from diverse donors as the information platform of BBD; and c) developing superior cultivars by BBD using designed QTL pyramiding or marker assisted recurrent selection. Phase (a) has been implemented massively in rice by many Chinese research institutions and IRRI, resulting in the development of many new green super rice cultivars plus large numbers of ILs in 30 + elite genetic backgrounds. Phase (b) has been demonstrated in a series of proof-of-concept studies of high-efficiency genetic dissection of rice yield and tolerance to abiotic stresses using ILs and DNA markers. Phase (c) has also been implemented by designed QTL pyramiding, resulting in a prototype of BBD in several successful cases. The BBSI strategy can be easily extended for simultaneous trait improvement, efficient gene and QTL discovery and allele mining of complex traits using advanced breeding lines from crosses between a common ‘‘backbone” parent and a set of elite parents in conventional pedigree breeding programs. BBSI can be relatively easily adopted by breeding programs with small budgets, but the BBSI-based BBD strategy can be fully and more efficiently implemented by large seed companies with sufficient capacity. 2021-06 2024-12-19T12:53:39Z 2024-12-19T12:53:39Z Journal Article https://hdl.handle.net/10568/164258 en Open Access Elsevier Zhang, Fan; Shi, Yingyao; Ali, Jauhar; Xu, Jianlong and Li, Zhikang. 2021. Breeding by selective introgression: Theory, practices, and lessons learned from rice. The Crop Journal, Volume 9 no. 3 p. 646-657 |
| spellingShingle | agronomy and crop science plant science Zhang, Fan Shi, Yingyao Ali, Jauhar Xu, Jianlong Li, Zhikang Breeding by selective introgression: Theory, practices, and lessons learned from rice |
| title | Breeding by selective introgression: Theory, practices, and lessons learned from rice |
| title_full | Breeding by selective introgression: Theory, practices, and lessons learned from rice |
| title_fullStr | Breeding by selective introgression: Theory, practices, and lessons learned from rice |
| title_full_unstemmed | Breeding by selective introgression: Theory, practices, and lessons learned from rice |
| title_short | Breeding by selective introgression: Theory, practices, and lessons learned from rice |
| title_sort | breeding by selective introgression theory practices and lessons learned from rice |
| topic | agronomy and crop science plant science |
| url | https://hdl.handle.net/10568/164258 |
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