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Evaluation of cultivated and wild genotypes of Lens species under alkalinity stress and their molecular collocation using microsatellite markers.

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Title Evaluation of cultivated and wild genotypes of Lens species under alkalinity stress and their molecular collocation using microsatellite markers.
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Creator Singh D, Singh CK, Singh YP, Singh V, Singh R, Tomar RSS.ble
 
Subject Lentil, alkalinity, microsatellite marker
 
Description Not Available
In this study, 285 lentil genotypes were phenotyped under hydroponic and alkaline field conditions.
Significant genotypic variation for alkalinity stress was observed among the six Lens
species screened hydroponically and in the field having pH up to 9.1. The crucial parameters,
like whole Na+ and K+ contents and the Na+/K+ ratio at 40 mM NaHCO3 were found significantly
correlated with seedling survivability under hydroponics (r = -0.95, r = 0.93 and
-0.97). Genotypes, ranked on the bases of seed yield, restricted uptake of Na+ with thick
pith area, increased vascular bundles, less H2O2 production and low Na+/K+ ratio, were
found important physio-anatomical traits for alkalinity stress tolerance. The proper regulation
of Na+ uptake was found for maintaining higher K+. This relationship is probably the
main factor responsible for a better mechanism for tolerance to high pH up to 9.1 in tolerant
breeding lines PDL-1 and PSL-9 (cultivars) and ILWL-15, ILWL-192 and ILWL-20 (wild
accessions). Based on UPGMA dendrogram, all the genotypes were clustered into four
diverse groups. DMRT was implied within the group to differentiate genotypes based on
phenotypic response under alkalinity stress. These results can be utilized for selecting
diverse parents for developing alkalinity tolerant genotypes.
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Date 2018-09-13T19:21:11Z
2018-09-13T19:21:11Z
2018-08-13
 
Type Research Paper
 
Identifier Singh D, Singh CK, Singh YP, Singh V, Singh R, Tomar RSS, et al. (2018) Evaluation of cultivated and wild genotypes of Lens species under alkalinity stress and their molecular collocation using microsatellite markers. PLoS ONE 13(8): e0199933. https://doi.org/10.1371/ journal.pone.0199933
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http://krishi.icar.gov.in/jspui/handle/123456789/6777
 
Language English
 
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