Genetic gains in IRRI’s rice salinity breeding and elite panel development as a future breeding resource

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cg.contributor.donorBill & Melinda Gates Foundationen
cg.contributor.initiativeAccelerated Breeding
cg.creator.identifierMahender Anumalla: 0000-0003-4492-4005
cg.creator.identifierWaseem Hussain: 0000-0002-6861-0193
cg.creator.identifierGlenn Gregorio: 0000-0002-7512-9058
cg.creator.identifierShalabh Dixit: 0000-0002-6073-1249
cg.creator.identifierJauhar Ali or A. Jauhar Ali: 0000-0002-3177-2607
cg.creator.identifierVikas Kumar Singh: 0000-0002-1560-1648
cg.identifier.doihttps://doi.org/10.1007/s00122-024-04545-9en
cg.isijournalISI Journalen
cg.issn0040-5752en
cg.issue2en
cg.journalTheoretical and Applied Geneticsen
cg.reviewStatusPeer Reviewen
cg.volume137en
dc.contributor.authorKhanna, Apurvaen
dc.contributor.authorMahender, Anumallaen
dc.contributor.authorRamos, Joieen
dc.contributor.authorCruz, Ma Teresa Staen
dc.contributor.authorCatolos, Margareten
dc.contributor.authorSajise, Andres Godwinen
dc.contributor.authorGregorio, Glennen
dc.contributor.authorDixit, Shalabhen
dc.contributor.authorAli, Jauharen
dc.contributor.authorIslam, Md. Rafiqulen
dc.contributor.authorSingh, Vikas Kumaren
dc.contributor.authorRahman, Md. Akhlasuren
dc.contributor.authorKhatun, Hasinaen
dc.contributor.authorPisano, Daniel Josephen
dc.contributor.authorBhosale, Sankalpen
dc.contributor.authorHussain, Waseemen
dc.date.accessioned2024-12-19T12:53:05Zen
dc.date.available2024-12-19T12:53:05Zen
dc.identifier.urihttps://hdl.handle.net/10568/163848
dc.titleGenetic gains in IRRI’s rice salinity breeding and elite panel development as a future breeding resourceen
dcterms.abstractEstimating 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.en
dcterms.accessRightsOpen Access
dcterms.available2024-01-31
dcterms.bibliographicCitationKhanna, 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. 2en
dcterms.issued2024-02
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherSpringeren
dcterms.subjectsalt toleranceen
dcterms.subjecthigh-yielding varietiesen
dcterms.subjectgenetic gainen
dcterms.subjectexperimental designen
dcterms.subjectgenotypesen
dcterms.subjectbreeding programmesen
dcterms.subjectriceen
dcterms.typeJournal Article

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