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Polymorphism analysis in advanced mutant population of oat (Avena sativa L.) using ISSR markers
Pawan Sharma1, Sharad Tiwari1, Niraj Tripathi1
1Biotechnology Centre, Jawaharlal Nehru Agricultural University, Jabalpur, 482004 India.
Abstract:
Present investigation was carried out to evaluate genetic diversity among 38 M6 population of oat cv. JO-1. To validate the observed morpho-physiological variations, these lines were analyzed with 21 ISSR primers. A total of 132 loci were amplified by these 21 ISSR markers and 116 loci were found to be polymorphic (87.87 %). The genetic similarity coefficient values among 39 oat genotypes based on ISSR analysis ranged from 0.305 to 0.957. The cluster analysis divided the oat genotypes into two groups. Mutants JMO 81 and JMO 82 were found to be most divergent, hence can be used as parents in breeding program for the development of superior cultivars.
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01:05Single Nucleotide Polymorphisms-SNPs
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Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...