| Abstrakt: |
High night temperature stress in rice greatly reduces yield by reducing spikelet fertility and other yield-related traits. In our study, we used 297 F2,4 recombinant inbred lines (RILs) from a Diamond x N22 population and genotyped them using 1016 SNPs from the IRRI RiCA panel (Arbelaez et al., 2019). We detected a significant quantitative trait loci (QTL) for percent-filled grains on chromosome 12 with 9.9% phenotypic variation explained (PVE) and two minor QTL on chromosome 6 (6.3% and 5.0% PVE). Additionally, two QTL were detected in chromosome 4 for the number of tillers (6.0% and 5.0% PVE). Significant QTL for other agronomic traits such as chlorophyll content, number of branches on panicles, days to harvest, stalk diameter, height, exertion of panicles, length of flag leaf, and presence of awns were detected in chromosomes 1, 2, 3, 4, 5 and 7. [ABSTRACT FROM AUTHOR] |
