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Association Mapping for Drought Tolerance and Stem Rust Resistance in a Spring Wheat Panel
| Content Provider | Semantic Scholar |
|---|---|
| Author | Abouzied, Hanaa Mahdy Morsy, Sabah Naser, Mahmoud M. |
| Copyright Year | 2018 |
| Abstract | In an attempt to detect QTL loci conferring drought tolerance and stem rust resistance in wheat, a genome-wide association study was carried out on a panel of 300 spring wheat accessions from different origins genotyped using single nucleotide polymorphism (SNP). The studied lines were phenotyped in Egypt under wellwatered and severe drought stressful conditions, while naturally exposed to several stem rust races. Several QTLs and drought tolerance genotypes were detected in this study. Under normal conditions, five SNPs on chromosome 2A, 6B, 6A, 5B and 4A were significantly associated with yield, six significant QTLs for plant height detected on chromosomes 6A and 2B and for stem rust resistance four significant QTLs on chromosomes 2B and 6A were identified. Under drought conditions six QTLs on chromosomes 6B, 5A, 2A, 5B, and 6A that were significantly associated with yield, eleven QTLs affecting plant height were detected on chromosomes 1B, 2B, 6A, , and 4A, while for stem rust resistance three QTLs on chromosomes 1B, 6A, and 4A were detected. QTLs identified in this research may be used for further studies as markers assisted selection in different breeding programs. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.idosi.org/aejaes/jaes18(2)18/6.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
