Duraisamy Mahamuni (2024) Genomic Profiling Reveals Intraspecific Divergence and Interspecific Diversity in Allium cepa L. Genomic Profiling Reveals Intraspecific Divergence and Interspecific Diversity in Allium cepa L.. pp. 1-31.

[thumbnail of 13.pdf] Text
13.pdf - Published Version
Download (1MB)

Abstract

Evolution of genus is accompanied by ecological diversification. The majority of species grow in open,
sunny, rather dry sites in arid and moderately humid climates. However, Allium species have adapted for
many other ecological niches. Classical approaches for the identification of Allium cultivars are based on
morphological traits. The assessment of these traits is difficult and their evaluation can be subjective
considering that most of these cultivars are closely related. Hence, this study of Internal Transcribed
Spacer (ITS) sequencing and four barcoding regions, matK, rbcL, trnH-psbA, trnL and Inter Simple
Sequence Repeats (ISSR) were researched in onion, Allium cepa L. (Alliaceae) collected from three
different cultivation sites. The results established noticeable hereditary divergence among the three
cultivars. In ITS and matK, BDUT 1453, BDUT 1454 and BDUT 1455 were independent of each other and
formed three clusters. In rbcL, BDUT 1453 formed an independent cluster from the cluster of BDUT 1454
and BDUT 1455. But in trnH-psbA, BDUT 1454 formed an independent cluster and BDUT 1453 and BDUT
1455 were closely placed whereas trnL showed all the three forming a cluster wherein BDUT 1453 and
BDUT 1454 were placed closely in a sub-cluster. In ISSR, BDUT 1454 and BDUT 1455 formed a single
cluster and BDUT 1453 diverged from it. Even though the tested cultivars belong to the same species they
showed genetic divergence among themselves.

Item Type: Article
Additional Information: his work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License
Uncontrolled Keywords: Allium cepa, Phylogeny, ITS, Barcoding, ISSR
Depositing User: Mr Team Mosys
Date Deposited: 18 Apr 2024 06:08
Last Modified: 18 Apr 2024 06:08
URI: http://ir.psgcas.ac.in/id/eprint/2134

Actions (login required)

View Item
View Item
Altmetric