QTL analysis in Barley Across Environments in Egypt | ||||
| Egyptian Journal of Agronomy | ||||
| Article 6, Volume 39, Issue 1, July 2017, Page 53-70 PDF (1.41 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/agro.2017.525.1052 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Mohamed Sayed1; Ashraf Elsadek  2; Bakry Bakry3; Mohamed Ali1; Jens Leon 4; Emad Salem 2
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| 1Agronomy Department, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt | ||||
| 2Desert Research Center, Cairo, Egypt. | ||||
| 3Field Crops Res. Dept., National Research Centre, Giza, Egypt. | ||||
| 4Plant Breeding, INRES, Faculty of Agriculture, Bonn University, Germany | ||||
| Abstract | ||||
| BARLEY is one of the most important cereal crops worldwide. An advanced backcross doubled haploid mapping population was grown in four locations across Egypt (Assuit, Al Wady Al Asuity, Matrouh and Nubaria). The population included 301 BC2DH lines derived from crossing between a German elite cultivar of H. vulgare ssp. vulgare ‘Scarlett’ with an exotic accession of H. vulgare ssp. spontaneum ‘ISR42-8’. A linkage map including 371 different types of genetic markers was used to perform QTL analysis. We detected 56 putative QTLs for traits of interest. In addition, the study identified four markers with marker main and marker × environment interaction effects. The exotic alleles of those four markers could be responsible for increasing their traits across environments. Furthermore, eight markers showed pleiotropic effect across locations. Some DH lines performed better than their parents and check varieties in each environment and across four environments as well. These results might be useful in MAS for barley breeding programs in Egypt. | ||||
| Keywords | ||||
| Barley; Epistatic effect; Multiple environments; Pleiotropic effect; Quantitative trait loci | ||||
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