AI Article Synopsis
- The study utilized a population of 247 recombination inbreed lines (RILs) from an indica cross to create a linkage map with 250 DNA markers for QTL mapping related to plant height and root traits under both normal and salt stress conditions.
- Six QTLs linked to the studied traits were identified under salt stress, explaining 6.01% to 16.50% of the phenotypic variation, while six additional QTLs were found under normal conditions, with variations ranging from 4.39% to 18.50%.
- Significant QTLs affecting root length and relative water content were located in specific intervals on chromosomes 1 and 3, indicating overlapping genetic influences.
Article Abstract
By employing a recombination inbreed line (RIL) population of 247 lines derived from an inidca-inidca cross Zhenshan 97Bx Milyang 46, a linkage map consisting of 250 DNA markers was used for QTL mapping of plant height, maximum root length, root dry weight and relative water content under normal and salt stress (0.7% NaCl). Six QTLs for these traits were identified under salt stress, with 6.01%-16.50% phenotypic variations. Six QTLs for these traits were identified under normal conditions, with 4.39%-18.50% phenotypic variations. Meanwhile, root length and relative water content were simultaneously affected by two QTLs located in the interval RM246-RG101 on chromosome 1 and the interval RZ399-RG393 on chromosome 3.
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