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Genetic diversity of Indian jujube cultivars using SCoT, ISSR, and rDNA markers

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Title Genetic diversity of Indian jujube cultivars using SCoT, ISSR, and rDNA markers
Not Available
 
Creator S. K. Singh
Sidhika Chhajer
Rakesh Pathak
R. K. Bhatt
Rajwant K. Kalia
 
Subject Ziziphus mauritiana
SCoT
ISSR
rDNA
Molecular markers
Indian jujube
 
Description Not Available
Genetic variation and relationships among 37 cultivars
of Ziziphus mauritiana (Lamk.) native of India were analyzed
using start codon targeted (SCoT), inter-simple sequence
repeats (ISSR), and ribosomal DNA (rDNA)markers.High level
of polymorphism among SCoT (61.6%) and ISSR (61%)
primers with higher PIC values ranging from 63.1 to 90.4% of
SCoT and 47.3 to 88.8% of ISSR primers was recorded. SCoT
and ISSR dendrograms revealed similarity coefficients ranging
from 0.80 to 0.92 and 0.79 to 0.96, respectively, and clearly
delineated all the cultivars of Z. mauritiana into well-supported
distinct clusters. Greater Gst signifies higher amount of differentiation
observed over multiple loci among seven Z. mauritiana
populations. On the other hand, higher gene flow demonstrating
a very high migration rate between Z. mauritiana populations
indicated higher rates of transfer of alleles or genes from one
population to another. The genetic diversity of population 1
(Rajasthan) was the richest among all the seven populations.
The largest genetic distance was measured between
Maharashtra and West Bengal and the least between Rajasthan
and Punjab cultivars. Most of the genetic diversity exists within
population rather than among populations. Substantial variation
in the ITS-1 region signifies its phylogenetic utility specifically in
assessing genetic diversity in Z. mauritiana. The clustering patterns
using three molecular marker systems vis-à-vis place of
origin exhibited no consistency in grouping of Z. mauritiana
cultivars as cultivars from the same place of origin were genetically
cataloged into different SCoT, ISSR, and ITS phylogram
clusters indicating wide genetic diversity and distribution across
agro-climatic zones validating the robustness of marker systems
tested.
Not Available
 
Date 2019-05-14T11:54:36Z
2019-05-14T11:54:36Z
2017-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/19485
 
Language English
 
Relation Not Available;
 
Publisher Springer