Abstract
Landraces are highly dynamic populations with historical origins. Several factors have influenced the evolution of landraces and some of them were selection by farmers, natural selection, gene-flow from various neighboring populations, genetic drifts, etc. In this study, we phenotyped 36 landraces and wild populations of sorghum conserved at ICRISAT genebank, Hyderabad, India, to assess the diversity among the populations of sorghum. Since landraces are diverse populations, we phenotyped more plants (over 100 plants) in each accession for nine economically important quantitative traits, thus capturing the entire variability. Our study revealed that the clustering pattern based on D2 statistics grouped the 36 accessions into 5 clusters, in which cluster 1 holds the maximum number of 15 accessions and cluster 3 with the least (2 accessions). Minimal intra cluster distance (3.66) was observed in cluster 3 followed by cluster 5 (9.52), while the maximum intra cluster distance was found in cluster 2 (12.50). The highest inter cluster distance was found between clusters 1 and 4 (16.29) indicating the presence of wide diversity between accessions of these two clusters. Accessions in cluster 1 were early maturing (67 days after sowing, DAS) while those in cluster 4 were late maturing (129 DAS) and high yielding (36.9 g). Results from this study provide information about the diversity of landraces and wild sorghum populations for their utilization in crop improvement
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Claims 8
Claim · model-written summary
The 36 sorghum accessions formed five clusters, with 15 in cluster 1 and two in cluster 3.
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the clustering pattern based on D2 statistics grouped the 36 accessions into 5 clusters, in which cluster 1 holds the maximum number of 15 accessions and cluster 3 with the least (2 accessions)”
t0“Genetic diversity analysis of geographically diverse landraces and wild accessions in sorghum”
Claim · model-written summary
Cluster 3 had the minimum intracluster distance of 3.66.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Minimal intra cluster distance (3.66) was observed in cluster 3”
t0“Genetic diversity analysis of geographically diverse landraces and wild accessions in sorghum”
Claim · model-written summary
Cluster 5 had an intracluster distance of 9.52.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cluster 5 (9.52)”
e1“Minimal intra cluster distance (3.66) was observed in cluster 3”
t0“Genetic diversity analysis of geographically diverse landraces and wild accessions in sorghum”
Claim · model-written summary
Cluster 2 had the maximum intracluster distance of 12.50.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the maximum intra cluster distance was found in cluster 2 (12.50)”
t0“Genetic diversity analysis of geographically diverse landraces and wild accessions in sorghum”
Claim · model-written summary
Clusters 1 and 4 had the highest intercluster distance, 16.29.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest inter cluster distance was found between clusters 1 and 4 (16.29)”
t0“Genetic diversity analysis of geographically diverse landraces and wild accessions in sorghum”
Claim · model-written summary
Accessions in cluster 1 matured early, at 67 days after sowing.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Accessions in cluster 1 were early maturing (67 days after sowing, DAS)”
t0“Genetic diversity analysis of geographically diverse landraces and wild accessions in sorghum”
Claim · model-written summary
Accessions in cluster 4 matured late, at 129 days after sowing.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“those in cluster 4 were late maturing (129 DAS)”
t0“Genetic diversity analysis of geographically diverse landraces and wild accessions in sorghum”
Claim · model-written summary
Accessions in cluster 4 were high yielding, at 36.9 g.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high yielding (36.9 g)”
t0“Genetic diversity analysis of geographically diverse landraces and wild accessions in sorghum”