Indian Society of Genetics & Plant Breeding

Analysis of genetic diversity in grain amaranth (Amaranthus spp.)

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The genetic divergence in 100 genotypes and germplasm
lines of grain amaranth (Amaranthus spp.) was assessed
by using non-hierarchical Euclidean cluster analysis.The
genotypes were grouped into 15 distinct clusters revealing
wide diversity in the experimental material. Cluster XV was
largest with 18 followed by cluster XIV with 15 and cluster
VIII with 11 genotypes, while cluster VI was solitary.
Clustering pattern of genotypes showed lack of any
relationship between geographic origin and genetic
diversity. Intra cluster values ranged from 0.00 to 23.81 and
cluster VII was the most diverse group. The inter cluster
values ranged from 22.30 to 133.55. Maximum divergence
was noticed between clustersVI and XIII (133.55) followed
by clusters I and IV (132.74).The diverse clusters derived
could be used in hybridization programme to develop high
yielding grain amaranth varieties.

Keywords: Grain amaranth, genetic divergence, non hierarchical Euclidian cluster


Year: 2014
Volume: 74
Issue: 4
Article DOI: 10.5958/0975-6906.2014.00882.7
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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