ARS | Publication request: Registration of 'RU9101001'/'Katy' recombinant inbred lines of rice

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: December 8, 2009
Publication Date: April 15, 2010
Citation: Jia, Y., Moldenhauer, K.A. 2010. Development of morogenic and digenic rice lines for blast resistance genes of Pi-ta, Pi-kh/Pi-ks. Journal of Plant Registrations. 4:163-166.

Interpretive Summary: The development and characterization of a mapping population using an adapted US rice breeding line and a commercial cultivar not only benefit genetic studies of quantitative traits but also facilitate develoment of molecular markers that will increase breeding efficiency for rice breeding programs in the USA. The cross RU9101001/'Katy' rice (Oryza sativa L.) was used to develop a mapping population consisting of 238 F9 generation recombinant lines of rice (Oryza sativa L.) (GSOR100361 to GSOR100600). This population has been used to map major genes that provide resistance to the rice blast pathogen (Magnaporthe oryzae, formerly Magnaporthe grisea), and is expected to be useful for mapping additional genes that are segregating in the population. This population is also very diverse for days to heading and plant height. Thus, the genes underlining these traits can be identified and used in marker assisted selection.

Technical Abstract: The cross of RU9101001/'Katy' rice (Oryza sativa L.) was used to develop a mapping population consisting of 238 F9 generation recombinant inbred lines of rice (Oryza sativa L.) (GSOR100361 to GSOR100600). This population has been used to map major genes that provide resistance to the rice blast pathogen (Magnaporthe oryzae, formerly Magnaporthe grisea), and is expected to be useful for mapping additional genes that are segregating in the population. This population is also very diverse for days to heading and plant height.