Publication: Breeding Novel Short Grain Rice for Tropical Region to Combine Important Agronomical Traits, Biotic Stress Resistance and Cooking Quality in Koshihikari Background
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Issued Date
2021
Resource Type
Language
eng
File Type
application/pdf
ISSN
16726308
Other identifier(s)
2-s2.0-85113656976
Rights Holder(s)
Scopus
Bibliographic Citation
Rice Science. Vol 28, No.5 (2021), p.479-492
Suggested Citation
Saichompoo U., Narumol P., Nakwilai P., Thongyos P., Nanta A., Tippunya P., Ruengphayak S., Itthisoponkul T., Bueraheng N., Cheabu S., Malumpong C. Breeding Novel Short Grain Rice for Tropical Region to Combine Important Agronomical Traits, Biotic Stress Resistance and Cooking Quality in Koshihikari Background. Rice Science. Vol 28, No.5 (2021), p.479-492. doi:10.1016/j.rsci.2021.07.008 Retrieved from: https://hdl.handle.net/20.500.14740/4104
Abstract
Breeding program strategies to develop novel short grain white rice varieties such as japonica (short grain) that introgress biotic stress resistance and high grain quality have been developed using indica rice (Pin Kaset + 4 and Riceberry) for applications in japonica rice (Koshihikari) improvement. Four breeding lines showing promising agronomic performance with short grain and low amylose content (< 20%) were obtained. In addition, sensory testing of these breeding lines showed high scores that similar to Koshihikari. Two promising lines, KP48-1-5 and KP48-1-9, which possessed a combination of four genes resistance to different biotic stresses (Bph3 + TPS + Xa21 + Pi-ta) and four genes for grain quality (GS3 + SSIIa + wxb + badh2), were developed using marker-assisted selection (MAS) with the pedigree method. The current study clearly illustrated the successful use of MAS in combining resistance to multiple biotic stresses while maintaining a high yield potential and preferred grain quality. Moreover, the results indicated that this breeding program, which includes crossing temperate japonica with indica, can create novel short grain rice varieties adapted to a tropical environment, like the japonica type. © 2021 China National Rice Research Institute