The E-W strike-slip brittle faults are reported from the margin of South East Deccan Volcanic Pro... more The E-W strike-slip brittle faults are reported from the margin of South East Deccan Volcanic Province (SEDVP) near Kinwat where we detail faulting, folding and boudinaging from the Adampur-Bhaisa profile along the SEDVP margin further SW of the Kinwat region. The present study focusses deformations in the basement granite from the SEDVP around Degloor/Diglur. The NE trending strike-slip faults, W-dipping steep normal faults, and W verging thrusts are documented in this study in the granitic rocks. NE trending strike-slip tectonics dominates the study area, which does not corroborate with ~E trending Western Boundary East Dharwar Craton Strike-Slip Zone (WBEDCSZ). The concentrated strike-slip deformation at Degloor lies between (micro)seismically active Killari-Nanded-Kaddam regions. The present study suggests that the stretch of >75 km, from Degloor to Bhaisa, along the SEDVP margin within the EDC, is a tectonic zone and is designated as Western Boundary East Dharwar Craton Defo...
The purpose of this study is to better understand the tectonics of the Deccan trap, India, for wh... more The purpose of this study is to better understand the tectonics of the Deccan trap, India, for which we perform field studies and geomorphic analyses. The contact between the Eastern Dharwar Craton with the South East Deccan Volcanic province around Kinwat lineament (Maharashtra, India) is NW extension of the Kaddam fault. We study this contact in the present work. The region is predominantly NE-SW strike-slip faulted along with minor folds and boudins. These structures are confined to the granitic-gneissic basement. The faults reported in this study do not match with the earlier reported—E strike-slip faults, from Gokunda region near Kinwat city. The difference in the trend of faults indicates heterogeneity in the fault regime at local-scale. Different stress-axes at Gokunda and the study area led to the development of these two differently trending (NE-SW trending faults and—E strike-slip faults near Gokunda) fault regimes. Geomorphometric analyses connote that most of the study area is moderately tectonically active and tilted.
We identified a G-nucleotide insertion in a maize FatB responsible for reducing saturated fatty a... more We identified a G-nucleotide insertion in a maize FatB responsible for reducing saturated fatty acids through QTL mapping and map-based cloning and developed an allele-specific DNA marker for molecular breeding. Vegetable oils with reduced saturated fatty acids have signficant health benefits. SRS72NE, a Dow AgroSciences proprietory maize inbred line, was found to contain signficantly reduced levels of palmitic acid and total saturated fatty acids in seed oil when compared to other common inbreds. Using F2 and F3 populations derived from a cross between SRS72NE and a normal inbred SLN74, we have demonstrated that the reduced saturated fatty acid phenotype in SRS72NE is controlled by a single QTL on chromosome 9 that explains 79.1 % of palmitic acid and 79.6 % total saturated fatty acid variations. The QTL was mapped to an interval of 105 kb that contains one single gene, a type B fatty acyl-ACP thioesterase (ZmFatB; GRMZM5G829544). ZmFatB alleles from SRS72NE and common inbreds were cloned and sequenced. SRS72NE fatb allele contains a single nucleotide (G) insertion in the 6th exon, which creates a premature stop codon 22 base pairs down stream. As a result, ZmFatB protein from SRS72NE is predicted to contain eight altered and 90 deleted amino acids at its C-terminus. Because the affected region is part of the conserved acyl-ACP thioesterase catalytic domain, the truncated ZmFatB in SRS72NE is likely non-functional. We also show that fatb RNA level in SRS72NE is reduced by 4.4-fold when compared to the normal allele SNL74. A high throughput DNA assay capable of differentiating the normal and reduced saturate fatty acid alleles has been developed and can be used for accelerated molecular breeding.
Geological Society, London, Special Publications, 2016
We geomorphometrically characterize the tectonics near the microseismically active Nanded region,... more We geomorphometrically characterize the tectonics near the microseismically active Nanded region, Maharashtra, India. We used the geomorphic indices of active tectonics in 32 sub-basins to evaluate the relationship between tectonics and basin morphology. The area is divided into three different zones (1, 2 and 3). Microseismicity is concentrated along the NW–SE-trending Urvashi Ghat Lineament. The anomalous drainages and lineaments are also confined to the region where microseismicity is associated with thrust. Spatial analysis of the elongation ratio and hypsometric integral of the basins provide valuable information on their distribution and relationship to the structure and tectonics. This study suggests neotectonic control on the evolution of the basins close to Nanded City.
The E-W strike-slip brittle faults are reported from the margin of South East Deccan Volcanic Pro... more The E-W strike-slip brittle faults are reported from the margin of South East Deccan Volcanic Province (SEDVP) near Kinwat where we detail faulting, folding and boudinaging from the Adampur-Bhaisa profile along the SEDVP margin further SW of the Kinwat region. The present study focusses deformations in the basement granite from the SEDVP around Degloor/Diglur. The NE trending strike-slip faults, W-dipping steep normal faults, and W verging thrusts are documented in this study in the granitic rocks. NE trending strike-slip tectonics dominates the study area, which does not corroborate with ~E trending Western Boundary East Dharwar Craton Strike-Slip Zone (WBEDCSZ). The concentrated strike-slip deformation at Degloor lies between (micro)seismically active Killari-Nanded-Kaddam regions. The present study suggests that the stretch of >75 km, from Degloor to Bhaisa, along the SEDVP margin within the EDC, is a tectonic zone and is designated as Western Boundary East Dharwar Craton Defo...
The purpose of this study is to better understand the tectonics of the Deccan trap, India, for wh... more The purpose of this study is to better understand the tectonics of the Deccan trap, India, for which we perform field studies and geomorphic analyses. The contact between the Eastern Dharwar Craton with the South East Deccan Volcanic province around Kinwat lineament (Maharashtra, India) is NW extension of the Kaddam fault. We study this contact in the present work. The region is predominantly NE-SW strike-slip faulted along with minor folds and boudins. These structures are confined to the granitic-gneissic basement. The faults reported in this study do not match with the earlier reported—E strike-slip faults, from Gokunda region near Kinwat city. The difference in the trend of faults indicates heterogeneity in the fault regime at local-scale. Different stress-axes at Gokunda and the study area led to the development of these two differently trending (NE-SW trending faults and—E strike-slip faults near Gokunda) fault regimes. Geomorphometric analyses connote that most of the study area is moderately tectonically active and tilted.
We identified a G-nucleotide insertion in a maize FatB responsible for reducing saturated fatty a... more We identified a G-nucleotide insertion in a maize FatB responsible for reducing saturated fatty acids through QTL mapping and map-based cloning and developed an allele-specific DNA marker for molecular breeding. Vegetable oils with reduced saturated fatty acids have signficant health benefits. SRS72NE, a Dow AgroSciences proprietory maize inbred line, was found to contain signficantly reduced levels of palmitic acid and total saturated fatty acids in seed oil when compared to other common inbreds. Using F2 and F3 populations derived from a cross between SRS72NE and a normal inbred SLN74, we have demonstrated that the reduced saturated fatty acid phenotype in SRS72NE is controlled by a single QTL on chromosome 9 that explains 79.1 % of palmitic acid and 79.6 % total saturated fatty acid variations. The QTL was mapped to an interval of 105 kb that contains one single gene, a type B fatty acyl-ACP thioesterase (ZmFatB; GRMZM5G829544). ZmFatB alleles from SRS72NE and common inbreds were cloned and sequenced. SRS72NE fatb allele contains a single nucleotide (G) insertion in the 6th exon, which creates a premature stop codon 22 base pairs down stream. As a result, ZmFatB protein from SRS72NE is predicted to contain eight altered and 90 deleted amino acids at its C-terminus. Because the affected region is part of the conserved acyl-ACP thioesterase catalytic domain, the truncated ZmFatB in SRS72NE is likely non-functional. We also show that fatb RNA level in SRS72NE is reduced by 4.4-fold when compared to the normal allele SNL74. A high throughput DNA assay capable of differentiating the normal and reduced saturate fatty acid alleles has been developed and can be used for accelerated molecular breeding.
Geological Society, London, Special Publications, 2016
We geomorphometrically characterize the tectonics near the microseismically active Nanded region,... more We geomorphometrically characterize the tectonics near the microseismically active Nanded region, Maharashtra, India. We used the geomorphic indices of active tectonics in 32 sub-basins to evaluate the relationship between tectonics and basin morphology. The area is divided into three different zones (1, 2 and 3). Microseismicity is concentrated along the NW–SE-trending Urvashi Ghat Lineament. The anomalous drainages and lineaments are also confined to the region where microseismicity is associated with thrust. Spatial analysis of the elongation ratio and hypsometric integral of the basins provide valuable information on their distribution and relationship to the structure and tectonics. This study suggests neotectonic control on the evolution of the basins close to Nanded City.
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Papers by MD Babar