Detection of diversity in germplasm collection of sorghum (Sorghum bicolor) using RAPD analysis
2010
Sah, Shivjee | Khanna, V. K.
Eighteen accessions of Sorghum bicolor used for the present study consisted of 4 genotypes of forage sorghum i.e. UPFS-34, Pant Chari 4, UP Chari 2 and UP Chari 3 and 14 genotypes of grain sorghum. The seed of most of the genotypes of forage sorghum was reddish brown but the colour of the seed of grain sorghum was grayish. However, genetic variation at DNA level among 18 accessions of sorghum revealed that 3 forage sorghum out of 4 may have diverged long time back in evolution but one of these i.e. UP Chari 2 may have evolved as a forage variety much later. The results suggest that forage sorghum might have evolved by gene arrangement of grain sorghum. In UP Chari and Swathi most of the genotypic characters are the same but there might be changes in gene patterns responsible for forage characters. However, three forage sorghums which got diversified indicate that most of the genotypes of forage sorghum were distantly related to grain sorghum.
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