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- Title
Mapping QTLs related to salinity tolerance of rice at the young seedling stage.
- Authors
Lee, S. Y.; Ahn, J. H.; Cha, Y. S.; Yun, D. W.; Lee, M. C.; Ko, J. C.; Lee, K. S.; Eun, M. Y.
- Abstract
Using a population of recombinant inbred lines of the 164 genotypes derived from a cross between ‘Milyang 23’ (indica) and ‘Gihobyeo’ (japonica) in rice ( Oryza sativa L.), salt tolerance was evaluated at a young seedling stage in concentrations of 0.5% and 0.7% NaCl. Mapping quantitative trait loci (QTLs) related to salt tolerance was carried out by interval mapping using Qgene 3.0. Two QTLs ( qST1 and qST3) conferring salt tolerance at young seedling stage were mapped on chromosome 1 and 3, respectively, and explained 35.5–36.9% of the total phenotypic variation in 0.5% and 0.7% NaCl. The favourable allele of qST1 was contributed by ‘Gihobyeo’, and that of qST3 by ‘Milyang 23’. The results obtained in 0.5% and 0.7% NaCl for 2 years were similar in flanked markers and phenotypic variation.
- Subjects
RICE; SEEDLINGS; PLANT gene mapping; GENE mapping; PLANT genetics; PLANT breeding
- Publication
Plant Breeding, 2007, Vol 126, Issue 1, p43
- ISSN
0179-9541
- Publication type
Article
- DOI
10.1111/j.1439-0523.2007.01265.x