Abstract
With 2 figures and 4 tablesAbstractA recombinant inbred line (RIL) population, consisting of 238 F12lines derived from ‘R9308’/’Xieqingzao B’, the parents of a super hybrid rice in China, was developed for mapping quantitative trait locus (QTL) for nitrogen deficiency tolerance. A genetic linkage map with 198 simple sequence repeat (SSR) markers was constructed. Six traits of shoot dry weight (SW), root dry weight (RW), plant dry weight (PW), maximum root length (RL), chlorophyll content (Chl), plant height (PH) were used to assess the N‐deficiency tolerance. The ratio of the parameters from the two treatments was calculated as derived parameters. QTL analysis detected seven QTLs on chromosomes 1, 2, 3 and 8 associated with N‐deficiency tolerance in this mapping population. These QTLs explained 9.07–14.45% of the phenotypic variation. The ‘R9308’ alleles increased the relative traits except that of locus on chromosome 8. One of the major QTL clusters was detected in the interval RM5385–RM7192 on chromosome 1, which was associated with N recycling in rice. This chromosomal region may be enriched with the key N metabolism genes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
