Abstract
Avena sativa L., also known as Oat belongs to the Poaceae family, is one of the most significant crops that is grown for its seeds, fodder as well as for human consumption as oatmeal. In the current study, 236 genotypes of A. sativa were analysed for genetic diversity through agro-morphological and SDS-PAGE analysis. Cluster analysis based on agro-morphological characteristics grouped all the genotypes into nine clusters, whereas genotype numbers 537 and 728 were highly different from others. The seed yield production of cluster 9 genotypes was the highest per plant (38.2 ± 0.20 g), while cluster 2 genotypes produced maximum biomass per plant (122.5 ± 9.55 g) as compared to other clusters. In a principal component analysis where four variables were studied, and the observed total variations were 57.60%. Among the genotypes, a maximum grain yield of 38.2 g (each) was recorded for genotypes 22,350 and 728, followed by genotypes 737 and 22,390 (with 36.4 g and 35.6 g of seed productions, respectively). The SDS-PAGE analysis resulted in 13 bands and all the genotypes were grouped into seventeen clusters. At the extreme periphery of the dendrogram, genotype 537 and 22,332 were considered to be the most diverse genotypes. Our findings have implications for both understanding the diversity and relationships among these diverse genotypes of A. sativa and will provide a basis for obtaining the elite germplasm optimally adapted to local conditions. The selected genotypes based on agronomic performance may be potential breeding material to raise successful future cultivars.
Highlights
Avena sativa L. belongs to the family Poaceae is a highly nutritive plant cultivated globally [1]
Owing to the importance of genetic diversity among the germplasms, the current study aims to (i) characterise the local and exotic oat genotypes, (ii) to evaluate genetic diversity in oat germplasm through
Genetic variation within and between population crops species is of major interest for plant breeders
Summary
Avena sativa L. (oat) belongs to the family Poaceae is a highly nutritive plant cultivated globally [1]. The high lipid content in the seed makes it a potential oilseed crop [4] It is a major winter forage crop and is cultivated as a multi-purpose crop for silage and chaff for feed, pasture and forage straw. It is a fast-growing plant and as food, it is palatable, succulent and nutritious [5]. It is used as a medicinal plant as well and has exhibited anti-cancer activities. It has shown therapeutic effects in heart diseases. It can enhance body immunity and stabilises blood glucose levels in case of diabetes [6]
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