2013•BIOINFOLET - A Quarterly Journal of Life SciencesRequires access

Studies on genetic relationships through morphological and molecular markers in Oat (Avena sativa L.)

Yogesh Ruwali, Praveen Kumar, Aneeta Yadav

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Abstract

Low range of genetic similarity (7.56 - 3.33) was observed in Oat (Avena sativa L.) on the basis of 15 morphological characters whereas; it was moderate (0.74–0.36) on the basis of 10 RAPD markers. Genotypes in RAPD based dendrogram were clustered in phylogenetic groups while, a random grouping was observed in dendrogram based on the morphological markers. A negative correlation (r = -0.01368) was found among morphological and molecular marker systems, but the latter was found effective in distinguishing the genotypes using specific band positions for them. The genotypic classification was in agreement with the RAPD based grouping.

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Low range of genetic similarity (7.56 - 3.33) was observed in Oat (Avena sativa L.) on the basis of 15 morphological characters whereas; it was moderate (0.74–0.36) on the basis of 10 RAPD markers. Genotypes in RAPD based dendrogram were clustered in phylogenetic groups while, a random grouping was observed in dendrogram based on the morphological markers. A negative correlation (r = -0.01368) was found among morphological and molecular marker systems, but the latter was found effective in distinguishing the genotypes using specific band positions for them. The genotypic classification was in agreement with the RAPD based grouping.

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Available abstract

Low range of genetic similarity (7.56 - 3.33) was observed in Oat (Avena sativa L.) on the basis of 15 morphological characters whereas; it was moderate (0.74–0.36) on the basis of 10 RAPD markers. Genotypes in RAPD based dendrogram were clustered in phylogenetic groups while, a random grouping was observed in dendrogram based on the morphological markers. A negative correlation (r = -0.01368) was found among morphological and molecular marker systems, but the latter was found effective in distinguishing the genotypes using specific band positions for them. The genotypic classification was in agreement with the RAPD based grouping.

Key concepts: RAPD, Avena, Dendrogram, Biology, Molecular marker, Similarity (geometry), Genotype, Genetic relationship

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