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Articles by Ahmad Arzani
Total Records ( 2 ) for Ahmad Arzani
  Abbas Ali Vahabi Sedehi , Mahmood Solooki , Ahmad Arzani , Ahmad Ghanbari , Asefeh Lotfi , Abbas Ali Imamjomeh and Shahram Bahrami
  This study was carried out to evaluate morphological traits of the grass pea landraces using a randomized complete block design with 3 replications at Research Farm of Isfahan University of Technology and evaluation genetic diversity of 20 grass pea landraces from various locations in Iran were investigated using 32 RAPD and ISJ primers at Institute of Agriculture of Biotechnology of University of Zabol. Analysis of variance indicated a highly significant differences among 20 grass pea landrace for the morphological traits. Average of polymorphism percentage of RAPD primer was 73.9%. Among used primer, 12 random primers showed polymorphism and a total of 56 different bands were observed in the genotypes. Jafar-Abad and Sar-Chahan genotypes with similarity coefficient of 66% and Khoram-Abad 2 and Khoram-Abad 7 genotypes with similarity coefficient of 3% were the most related and the most distinct genotypes, respectively. Fourteen primers out of 17 semi random primers produced 70 polymorphic bands which included 56% of the total 126 produced bands. Genetic relatedness among population was investigated using Jacard coefficient and Unweighted Pair Group Mean Analysis (UPGMA) algorithm. The result of this research verified possibility of use of RAPD and ISJ markers for estimation of genetic diversity, management of genetic resources and determination of repetitive accessions in grass pea.
  The objectives of this study were to estimate the narrow sense heritability of the examined characters and to find their linked simple sequence repeats (SSRs) using bulked segregant analysis (BSA) in rice (Oryza sativa L). F2:3 families of the cross between ‘Mousa-Tarom’ and ‘304’ were used in an augmented design with 6 replications. Narrow sense heritability of panicle length and the culm number were low (<0.18), and of the brown rice characteristics such as length, width, and shape were very high (>0.84). The SSR primers RM16589 and RM17166 on chromosome 4 showed linkage with the gene(s) controlling culm length, plant height, leaf width, culm number, grain width, and grain shape. On chromosome 11, the SSR primer RM26063 showed linkage with plant height, panicle length, leaf width, grain length, grain width, and grain shape. The SSR primer RM26291 showed linkage with culm number, grain width, culm, panicle, and leaf and grain length, and the RM26509 to the grain shape. Chromosomes 1, 4, 5, and 11 had genes effective on the grain shape. The chromosomes 3, 5, and 11 carried the genes that controlled the leaf width. The linked SSR primers to the corresponding characters are helpful to select the traits in breeding programs and to find more tightly linked markers with the controlling genes of the desirable traits.
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