ﺷﻨﺎﺳﺎﻳﻲQTL ﻫﺎی ﻛﻨﺘﺮل ﻛﻨﻨﺪه ﺻﻔﺎت زراﻋﻲ در ﮔﻨﺪم ﻧﺎن ﺑﺎ اﺳﺘﻔﺎده از ﻧﺸﺎﻧﮕﺮ DArT

In order to recognize the quantitative genes controlling the agronomical traits in bread wheat, 76 recombinant inbred lines derived from the cross between Roshan and Superhead were used. Phenotypic evaluations were performed in an RCBD experimental with 2 replication conducted at the experimental field of Shahid Bahonar University of Kerman in normal condition. In this study, linkage map based on 347 DArT markers with a length of 630.5 cM and an average distance of 1.8 cM between adjusted markers was prepared in which chromosome 3D and 4D had the lowest and chromosome 7D had the highest numbers of markers. Based on Composite Interval Mapping were identificated 2, 1, 1, 1, 1, 1, 1 and 3 QTLs for plant height, number of nodes, main stem weight, number of grains per main stem, harvest index, number of total tillers, number of fertile tillers and 1000-grain weight, respectively.These QTLs were located on chromosome (7B, 2A), 3A, 5A, 5D, 3A, 4A, 7B and (1D, 5A, 5B). These QTLs were justified about 15 to 30 percent of phenotypic variance of mentioned traits, so considering the major effect of these QTLs can be used adjacent markers to marker- assisted selection.