Abstract
Genotypic differences and inheritance of ozone (O3) resistance in rice were tested in a chamber with an O3-producing and monitoring system. Most of the indica cultivars were more resistant than the japonica cultivars based on leaf injury to O3. The segregation for O3 resistance in the F2 of a cross between resistant and susceptible cultivars revealed a nearly normal distribution. Three significant QTLs associated with O3 resistance in rice were mapped using the National Institute of Agricultural Science and Technology (NIAST) map and the 164 recombinant inbred lines (MG RILs, F13) derived from Milyang23 (indica/ japonica)/Gihobyeo (japonica). These QTLs conferring O3 resistance were linked to RZ569A-RG109 on chromosome 1, C507- KCD405 on chromosome 7, and RG119-E13M60.348 on chromosome 11, explaining 20.5% of the total phenotypic variation. The relationship between O3 resistance and RFLP markers was analyzed in the F2 populations derived from Milyang 23/ Chucheongbyeo and Milyang 23/Daeribbyeo 1. The RFLP marker RG109 turned out to be polymorphic and significantly distinguished resistance and susceptibility to O3 of the F2 populations.
Original language | English |
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Title of host publication | Advances In Rice Genetics (In 2 Parts) |
Publisher | World Scientific Publishing Co. |
Pages | 302-304 |
Number of pages | 3 |
ISBN (Electronic) | 9789812814319 |
DOIs | |
State | Published - 1 Jan 2008 |