Introgression of tsv1 improves tungro disease resistance of a rice variety BRRI dhan71

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dc.creatorHore, Tapas Kumer
dc.creatorInabangan-Asilo, Mary Ann
dc.creatorWulandari, Ratna
dc.creatorLatif, Mohammad Abdul
dc.creatorNihad, Sheikh Arafat Islam
dc.creatorHernandez, Jose E.
dc.creatorGregorio, Glenn B.
dc.creatorDalisay, Teresita U.
dc.creatorDiaz, Maria Genaleen Q.
dc.creatorCh., Balachiranjeevi
dc.creatorSwamy, B.P. Mallikarjuna
dc.date2022-11-05
dc.date2024-12-19T12:53:20Z
dc.date2024-12-19T12:53:20Z
dc.date.accessioned2026-06-27T04:12:34Z
dc.descriptionRice Tungro disease poses a threat to rice production in Asia. Marker assisted backcross breeding is the most feasible approach to address the tungro disease. We targeted to introgress tungro resistance locus tsv1 from Matatag 1 into a popular but tungro susceptible rice variety of Bangladesh, BRRI dhan71. The tsv1 locus was traced using two tightly linked markers RM336 and RM21801, and background genotyping was carried out using 7 K SNPs. A series of three back crosses followed by selfing resulted in identification of plants similar to BRRI dhan71. The background recovery varied at 91–95% with most of the lines having 95%. The disease screening of the lines showed moderate to high level of tungro resistance with a disease index score of ≤ 5. Introgression Lines (ILs) had medium slender grain type, and head rice recovery (59.2%), amylose content (20.1%), gel consistency (40.1 mm) and gelatinization temperature were within the acceptable range. AMMI and Kang’s stability analysis based on multi-location data revealed that multiple selected ILs outperformed BRRI dhan71 across the locations. IR144480-2-2-5, IR144483-1-2-4, IR144484-1-2-2 and IR144484-1-2-5 are the most promising lines. These lines will be further evaluated and nominated for varietal testing in Bangladesh.
dc.identifierhttps://hdl.handle.net/10568/164021
dc.identifier.urihttp://hdl.handle.net/123456789/25167
dc.languageen
dc.publisherSpringer
dc.rightsOpen Access
dc.sourceHore, Tapas Kumer; Inabangan-asilo, Mary Ann; Wulandari, Ratna; Latif, Mohammad Abdul; Nihad, Sheikh Arafat Islam; Hernandez, Jose E.; Gregorio, Glenn B.; Dalisay, Teresita U.; Diaz, Maria Genaleen Q.; Ch., Balachiranjeevi and Swamy, B. P. Mallikarjuna. 2022. Introgression of tsv1 improves tungro disease resistance of a rice variety BRRI dhan71. Sci Rep, Volume 12, no. 1
dc.titleIntrogression of tsv1 improves tungro disease resistance of a rice variety BRRI dhan71
dc.typeJournal Article

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Instituto Internacional de Investigación del Arroz (IRRI)