Shahid Bahonar University of Kerman and Iranian Biotechnology Society Agricultural Biotechnology Journal 2228-6705 11 2 2019 08 23 Mapping of QTLs Affecting Salinity Tolerance in Iranian Rice Population at Germination Stage Mapping of QTLs Affecting Salinity Tolerance in Iranian Rice Population at Germination Stage 1 22 2385 10.22103/jab.2019.12378.1058 FA Mohammad Javad Behrozbeh M.Sc. student of Biotechnology Crop, Department of Agronomy & Plant Breeding, Faculty of Agricultural Sciences, University of Gonbad, Iran. University Gonbad. Hossein Sabouri Associate professor of plant production department, Gonbad kavus University Hossein Hossein Moghaddam Horticulture biotechnology Ph.D, Assistant Professor, Department of Plant Production, Faculty of Agricultural and Natural resources Sciences, Gonbad Kavoos University.Iran. Ali Nakhzari Moghaddam Crop physiology Ph.D, Assistant Professor, Department of Plant Production, Faculty of Agricultural and Natural resources Sciences, Gonbad Kavoos University.Iran. Ali Rahemi Karizaki Crop physiology Ph.D, Assistant Professor, Department of Plant Production, Faculty of Agricultural and Natural resources Sciences, Gonbad Kavoos University.Iran. Mohsen Rezaei Department of Plant Production, Faculty of Agricultural and Natural resources Sciences, Gonbad Kavoos University.Gonbad Kavoos. Iran Journal Article 2019 03 16 <strong>Objective </strong> <br />This experiment was conducted for developing of linkage map using SSR and ISSR markers in Iranian rice population, mapping of QTLs involved in salinity tolerance, and also evaluation of salinity tolerance in studied genotype. <br />  <br /><strong>Materials</strong> <strong>and</strong> <strong>Methods</strong> <br />In order to determine the salinity tolerance QTLs in a germination stage on an Iranian rice population (caused Ahlami Tarom × Neda cross), a factorial experiment was performed based on a randomized complete block design with three replications under three salinity levels of NaCl (0, 12, 22 dS.m^-1). <br />  <br /><strong>Results</strong> <br />The difference between populations in different levels of salinity was significant for all germination traits. Under normal conditions, 4, 1, 2 and 1 QTLs were detected for radicle weight, plumule weight, germination percentage and germination rate, respectively. In 12 dS.m^-1, 1, 1, 1, 2, 1 and 1 QTL for seedling weights, plumule weight, radicle length, coleoptile, germination percentage and germination rate. In 22 dS.m^-1, 2, 1, 1 and 1 QTL were located for radicle weight, plant length, germination percentage and germination rate. <br /><strong> </strong> <br /><strong>Discussion</strong> <br />The major effects of QTLs in this study played an important role in salinity tolerance and can be studied in marker assisted selection programs in rice under saline conditions. <strong>Objective </strong> <br />This experiment was conducted for developing of linkage map using SSR and ISSR markers in Iranian rice population, mapping of QTLs involved in salinity tolerance, and also evaluation of salinity tolerance in studied genotype. <br />  <br /><strong>Materials</strong> <strong>and</strong> <strong>Methods</strong> <br />In order to determine the salinity tolerance QTLs in a germination stage on an Iranian rice population (caused Ahlami Tarom × Neda cross), a factorial experiment was performed based on a randomized complete block design with three replications under three salinity levels of NaCl (0, 12, 22 dS.m^-1). <br />  <br /><strong>Results</strong> <br />The difference between populations in different levels of salinity was significant for all germination traits. Under normal conditions, 4, 1, 2 and 1 QTLs were detected for radicle weight, plumule weight, germination percentage and germination rate, respectively. In 12 dS.m^-1, 1, 1, 1, 2, 1 and 1 QTL for seedling weights, plumule weight, radicle length, coleoptile, germination percentage and germination rate. In 22 dS.m^-1, 2, 1, 1 and 1 QTL were located for radicle weight, plant length, germination percentage and germination rate. <br /><strong> </strong> <br /><strong>Discussion</strong> <br />The major effects of QTLs in this study played an important role in salinity tolerance and can be studied in marker assisted selection programs in rice under saline conditions. https://jab.uk.ac.ir/article_2385_1728d1ac236d27f9b15e32515e1473bf.pdf