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Mapping QTLs with additive effects and additive × additive epistatic interactions for harvest index in wheat (Triticum aestivum L.) | ||
| Journal of Plant Physiology and Breeding | ||
| مقاله 7، دوره 9، شماره 2، اسفند 2019، صفحه 67-76 اصل مقاله (605.34 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22034/jppb.2019.10575 | ||
| نویسندگان | ||
| Hamza Hamza1؛ Ali Asghari* 2؛ Seyyed Abolghasem Mohammadi3؛ Omid Sofalian2؛ Soleiman Mohammadi4؛ Mojtaba Nouraein5 | ||
| 1Sugar Beet Research Department, Agricultural and Natural Resources Research Center of Hamedan, Agricultural Research, Education and Extension Organization (AREEO), Hamedan, Iran. | ||
| 2Department of Agronomy and Plant Breeding, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran. | ||
| 3Department of Plant Breeding and Biotechnology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran. | ||
| 4Seed and Plant Improvement Research Department, West Azerbaijan Agricultural and Natural Resources Research Center, AREEO, Urmia, Iran. | ||
| 5Department of Agronomy and Plant Breeding, Faculty of Agriculture University of Maragheh, Maragheh Iran. | ||
| چکیده | ||
| To map quantitative trait loci (QTL) for harvest index, 148 recombinant inbred lines and their parents, Yecora Rojo and an Iranian landrace line (No. 49), were evaluated under normal and terminal water deficit stress conditions in the research stations of Mahabad University and Miyandoab Agricultural Research Center, Iran, during 2014 and 2015. The experiment was carried out as design alpha lattice design with two replications. A linkage map of 51 retrotransposon and 177 microsatellite markers was used in this investigation. Quantitative trait loci (QTL) for additive effects and additive × additive interactions were determined by QTL Network 2.0 software using CIM and mixed-linear methods. QTL analysis revealed that under normal condition, six QTLs (R2A= 0.04 to 12.0%), two QTL × environment (E) interactions (R2AE= 6.28%), five additive × additive epistatic effects (R2AA= 0.7 to 8.68%) and 12 additive × additive × E (R2AAE= 3.76 to 11.4%) were significant. Under water deficit stress conditions, two QTLs (R2A= 5.0 to 7.0%), two additive × additive interactions (R2AA= 3.72 to 5.48%) and seven additive × additive × E interactions (R2AAE= 8.04 to 9.58) were identified. Among the eight QTLs identified, three QTLs were located on chromosome 2D, suggesting the importance of this chromosome in controlling harvest index, which may be used for marker assisted selection in breeding programs. | ||
| کلیدواژه‌ها | ||
| Epistasis؛ Harvest index؛ Microsatellite marker؛ QTL؛ Retrotransposon؛ Wheat | ||
| مراجع | ||
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