eprintid: 11739
rev_number: 8
eprint_status: archive
userid: 3170
dir: disk0/00/01/17/39
datestamp: 2021-03-14 09:31:48
lastmod: 2021-03-14 09:33:53
status_changed: 2021-03-14 09:31:48
type: article
metadata_visibility: show
creators_name: Allan, V
creators_name: Geetha, S
creators_name: Vetriventhan, M
creators_name: Azevedo, C R
creators_gender: Female
creators_gender: Female
icrisatcreators_name: Vetriventhan, M
icrisatcreators_name: Azevedo, C R
affiliation: Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
affiliation: ICRISAT (Patancheru)
country: India
title: Genetic diversity analysis of geographically diverse
landraces and wild accessions in Sorghum
ispublished: pub
subjects: s1.4
subjects: s70
divisions: Genebank
full_text_status: public
keywords: Sorghum, Clustering, D2 Mahalanobis, Diversity, Landraces
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
date: 2020-09
date_type: published
publication: Electronic Journal of Plant Breeding
volume: 11
number: 3
pagerange: 760-764
id_number: 10.37992/2020.1103.125
refereed: TRUE
issn: 0975-928X
related_url_url: https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=10.37992%2F2020.1103.125&btnG=
related_url_type: pub
citation:   Allan, V and Geetha, S and Vetriventhan, M and Azevedo, C R  (2020) Genetic diversity analysis of geographically diverse landraces and wild accessions in Sorghum.  Electronic Journal of Plant Breeding, 11 (3).  pp. 760-764.  ISSN 0975-928X     
document_url: http://oar.icrisat.org/11739/1/3575-Article%20Text-10369-1-10-20201001.pdf