Genetic gains in IRRI’s rice salinity breeding and elite panel development as a future breeding resource
Estimating genetic gains and formulating a future salinity elite breeding panel for rice pave the way for developing better high-yielding salinity tolerant lines with enhanced genetic gains. Genetic gain is a crucial parameter to check the breeding program's success and help optimize future breeding...
| Autores principales: | , , , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2024
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/163848 |
| _version_ | 1855534121990750208 |
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| author | Khanna, Apurva Mahender, Anumalla Ramos, Joie Cruz, Ma Teresa Sta Catolos, Margaret Sajise, Andres Godwin Gregorio, Glenn Dixit, Shalabh Ali, Jauhar Islam, Md. Rafiqul Singh, Vikas Kumar Rahman, Md. Akhlasur Khatun, Hasina Pisano, Daniel Joseph Bhosale, Sankalp Hussain, Waseem |
| author_browse | Ali, Jauhar Bhosale, Sankalp Catolos, Margaret Cruz, Ma Teresa Sta Dixit, Shalabh Gregorio, Glenn Hussain, Waseem Islam, Md. Rafiqul Khanna, Apurva Khatun, Hasina Mahender, Anumalla Pisano, Daniel Joseph Rahman, Md. Akhlasur Ramos, Joie Sajise, Andres Godwin Singh, Vikas Kumar |
| author_facet | Khanna, Apurva Mahender, Anumalla Ramos, Joie Cruz, Ma Teresa Sta Catolos, Margaret Sajise, Andres Godwin Gregorio, Glenn Dixit, Shalabh Ali, Jauhar Islam, Md. Rafiqul Singh, Vikas Kumar Rahman, Md. Akhlasur Khatun, Hasina Pisano, Daniel Joseph Bhosale, Sankalp Hussain, Waseem |
| author_sort | Khanna, Apurva |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Estimating genetic gains and formulating a future salinity elite breeding panel for rice pave the way for developing better high-yielding salinity tolerant lines with enhanced genetic gains. Genetic gain is a crucial parameter to check the breeding program's success and help optimize future breeding strategies for enhanced genetic gains. To estimate the genetic gains in IRRI’s salinity breeding program and identify the best genotypes based on high breeding values for grain yield (kg/ha), we analyzed the historical data from the trials conducted in the IRRI, Philippines and Bangladesh. A two-stage mixed-model approach accounting for experimental design factors and a relationship matrix was fitted to obtain the breeding values for grain yield and estimate genetic trends. A positive genetic trend of 0.1% per annum with a yield advantage of 1.52 kg/ha was observed in IRRI, Philippines. In Bangladesh, we observed a genetic gain of 0.31% per annum with a yield advantage of 14.02 kg/ha. In the released varieties, we observed a genetic gain of 0.12% per annum with a 2.2 kg/ha/year yield advantage in the IRRI, Philippines. For the Bangladesh dataset, a genetic gain of 0.14% per annum with a yield advantage of 5.9 kg/ha/year was observed in the released varieties. Based on breeding values for grain yield, a core set of the top 145 genotypes with higher breeding values of > 2400 kg/ha in the IRRI, Philippines, and > 3500 kg/ha in Bangladesh with a reliability of > 0.4 were selected to develop the elite breeding panel. Conclusively, a recurrent selection breeding strategy integrated with novel technologies like genomic selection and speed breeding is highly required to achieve higher genetic gains in IRRI’s salinity breeding programs. |
| format | Journal Article |
| id | CGSpace163848 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1638482025-10-23T09:36:17Z Genetic gains in IRRI’s rice salinity breeding and elite panel development as a future breeding resource Khanna, Apurva Mahender, Anumalla Ramos, Joie Cruz, Ma Teresa Sta Catolos, Margaret Sajise, Andres Godwin Gregorio, Glenn Dixit, Shalabh Ali, Jauhar Islam, Md. Rafiqul Singh, Vikas Kumar Rahman, Md. Akhlasur Khatun, Hasina Pisano, Daniel Joseph Bhosale, Sankalp Hussain, Waseem salt tolerance high-yielding varieties genetic gain experimental design genotypes breeding programmes rice Estimating genetic gains and formulating a future salinity elite breeding panel for rice pave the way for developing better high-yielding salinity tolerant lines with enhanced genetic gains. Genetic gain is a crucial parameter to check the breeding program's success and help optimize future breeding strategies for enhanced genetic gains. To estimate the genetic gains in IRRI’s salinity breeding program and identify the best genotypes based on high breeding values for grain yield (kg/ha), we analyzed the historical data from the trials conducted in the IRRI, Philippines and Bangladesh. A two-stage mixed-model approach accounting for experimental design factors and a relationship matrix was fitted to obtain the breeding values for grain yield and estimate genetic trends. A positive genetic trend of 0.1% per annum with a yield advantage of 1.52 kg/ha was observed in IRRI, Philippines. In Bangladesh, we observed a genetic gain of 0.31% per annum with a yield advantage of 14.02 kg/ha. In the released varieties, we observed a genetic gain of 0.12% per annum with a 2.2 kg/ha/year yield advantage in the IRRI, Philippines. For the Bangladesh dataset, a genetic gain of 0.14% per annum with a yield advantage of 5.9 kg/ha/year was observed in the released varieties. Based on breeding values for grain yield, a core set of the top 145 genotypes with higher breeding values of > 2400 kg/ha in the IRRI, Philippines, and > 3500 kg/ha in Bangladesh with a reliability of > 0.4 were selected to develop the elite breeding panel. Conclusively, a recurrent selection breeding strategy integrated with novel technologies like genomic selection and speed breeding is highly required to achieve higher genetic gains in IRRI’s salinity breeding programs. 2024-02 2024-12-19T12:53:05Z 2024-12-19T12:53:05Z Journal Article https://hdl.handle.net/10568/163848 en Open Access Springer Khanna, Apurva; Anumalla, Mahender; Ramos, Joie; Cruz, Ma Teresa Sta.; Catolos, Margaret; Sajise, Andres Godwin; Gregorio, Glenn; Dixit, Shalabh; Ali, Jauhar; Islam, Md. Rafiqul; Singh, Vikas Kumar; Rahman, Md. Akhlasur; Khatun, Hasina; Pisano, Daniel Joseph; Bhosale, Sankalp and Hussain, Waseem. 2024. Genetic gains in IRRI’s rice salinity breeding and elite panel development as a future breeding resource. Theor Appl Genet, Volume 137, no. 2 |
| spellingShingle | salt tolerance high-yielding varieties genetic gain experimental design genotypes breeding programmes rice Khanna, Apurva Mahender, Anumalla Ramos, Joie Cruz, Ma Teresa Sta Catolos, Margaret Sajise, Andres Godwin Gregorio, Glenn Dixit, Shalabh Ali, Jauhar Islam, Md. Rafiqul Singh, Vikas Kumar Rahman, Md. Akhlasur Khatun, Hasina Pisano, Daniel Joseph Bhosale, Sankalp Hussain, Waseem Genetic gains in IRRI’s rice salinity breeding and elite panel development as a future breeding resource |
| title | Genetic gains in IRRI’s rice salinity breeding and elite panel development as a future breeding resource |
| title_full | Genetic gains in IRRI’s rice salinity breeding and elite panel development as a future breeding resource |
| title_fullStr | Genetic gains in IRRI’s rice salinity breeding and elite panel development as a future breeding resource |
| title_full_unstemmed | Genetic gains in IRRI’s rice salinity breeding and elite panel development as a future breeding resource |
| title_short | Genetic gains in IRRI’s rice salinity breeding and elite panel development as a future breeding resource |
| title_sort | genetic gains in irri s rice salinity breeding and elite panel development as a future breeding resource |
| topic | salt tolerance high-yielding varieties genetic gain experimental design genotypes breeding programmes rice |
| url | https://hdl.handle.net/10568/163848 |
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