Mutations in tomato 1-aminocyclopropane carboxylic acid synthase2 uncover its role in development beside fruit ripening Kapil Sharma, Soni Gupta, Supriya Sarma, Meenakshi Rai, Yellamaraju Sreelakshmi, et al. Plant Journal, 2021 The role of ethylene in plant development is mostly inferred from its exogenous application. The usage of the mutants affecting ethylene biosynthesis proffers a better alternative to decipher its role. In tomato, 1-aminocyclopropane carboxylic acid synthase2 (ACS2) is a key enzyme regulating ripening-specific ethylene biosynthesis. We characterized two contrasting acs2 mutants; acs2-1 overproduces ethylene, has higher ACS activity, and increased protein levels, while acs2-2 is an ethylene under-producer, displays lower ACS activity and protein levels than wild type. Consistent with high/low ethylene emission, the mutants show opposite phenotypes, physiological responses, and metabolomic profiles than the wild type. The acs2-1 showed early seed germination, faster leaf senescence, and accelerated fruit ripening. Conversely, acs2-2 had delayed seed germination, slower leaf senescence, and prolonged fruit ripening. The phytohormone profiles of mutants were mostly opposite in the leaves and fruits. The faster/slower senescence of acs2-1/acs2-2 leaves correlated with the endogenous ethylene/zeatin ratio. The genetic analysis showed that the metabolite profiles of respective mutants co-segregated with the homozygous mutant progeny. Our results uncover that besides ripening, ACS2 participates in the vegetative and reproductive development of tomato. The distinct influence of ethylene on phytohormone profiles indicates the intertwining of ethylene action with other phytohormones in regulating plant development.
Tomato fruits show wide phenomic diversity but fruit developmental genes show low genomic diversity Vijee Mohan, Soni Gupta, Sherinmol Thomas, Hanjabam Mickey, Chaitanya Charakana, et al. Plos One, 2016 Domestication of tomato has resulted in large diversity in fruit phenotypes. An intensive phenotyping of 127 tomato accessions from 20 countries revealed extensive morphological diversity in fruit traits. The diversity in fruit traits clustered the accessions into nine classes and identified certain promising lines having desirable traits pertaining to total soluble salts (TSS), carotenoids, ripening index, weight and shape. Factor analysis of the morphometric data from Tomato Analyzer showed that the fruit shape is a complex trait shared by several factors. The 100% variance between round and flat fruit shapes was explained by one discriminant function having a canonical correlation of 0.874 by stepwise discriminant analysis. A set of 10 genes (ACS2, COP1, CYC-B, RIN, MSH2, NAC-NOR, PHOT1, PHYA, PHYB and PSY1) involved in various plant developmental processes were screened for SNP polymorphism by EcoTILLING. The genetic diversity in these genes revealed a total of 36 non-synonymous and 18 synonymous changes leading to the identification of 28 haplotypes. The average frequency of polymorphism across the genes was 0.038/Kb. Significant negative Tajima’D statistic in two of the genes, ACS2 and PHOT1 indicated the presence of rare alleles in low frequency. Our study indicates that while there is low polymorphic diversity in the genes regulating plant development, the population shows wider phenotype diversity. Nonetheless, morphological and genetic diversity of the present collection can be further exploited as potential resources in future.
Fluorescent dye labeled DNA size standards for molecular mass detection in visible/infrared range Soni Gupta, Chaitanya Charakana, Yellamaraju Sreelakshmi, Rameshwar Sharma BMC Research Notes, 2011 BackgroundTargeting Induced Local Lesions in Genomes (TILLING) is a high throughput reverse genetics tool which detects mismatches (single point mutations or small indels) in large number of individuals of mutagenized populations. Currently, TILLING is intensively used for genomics assisted molecular breeding of several crop plants for desired traits. Most commonly used platform for mutation detection is Li-COR DNA Analyzer, where PCR amplified products treated with single strand mismatch specific nuclease are resolved on denaturing gels. The molecular size of any cut product can be easily estimated by comparing with IR dye labeled markers of known sizes. Similar fluorescent dye labeled size markers are also used for several genotyping experiments. Currently, commercially available size standards are expensive and are restricted up to only 700 bp which renders estimation of products of sizes greater than 700 bases inaccurate.FindingsA simple protocol was developed for labeling 5' end of multiple DNA size markers with fluorescent dyes. This method involves cloning a pool of different size markers of DNA in a plasmid vector. PCR amplification of plasmid using IR dye labeled universal primers generates 5' fluorescent labeled products of various sizes. The size of products constituting the ladder can be customized as per the need. The generated size markers can be used without any further purification and were found to be stable up to one year at -20°C.ConclusionsA simple method was developed for generating fluorescent dye labeled size standards. This method can be customized to generate different size standards as per experimental needs. The protocol described can also be adapted for developing labeled size standards for detection on platforms other than Li-COR i.e. other than infra red range of the spectrum.
Estimation of genetic diversity utilizing gene-targeted SCoT markers and morpho-chemotypic analyses in Senna alexandrina Mill.(Senna) A Kumar, AK Gupta, S Siddiqui, S Gupta, RK Lal, A Srivastava, ... Ecological Genetics and Genomics 31, 100252 , 2024 2024 Citations: 7
Industrial mint crop revolution, new opportunities, and novel cultivation ambitions: A review S Gupta, A Kumar, AK Gupta, AC Jnanesha, M Talha, A Srivastava, ... Ecological Genetics and Genomics 27, 100174 , 2023 2023 Citations: 29
Saussurea costus (Kust) and Senna alexandrina (Senna) A Dubey, S Gupta, M Khatoon, AK Gupta Herbs, shrubs, and trees of potential medicinal benefits, 261-290 , 2022 2022 Citations: 8
Integrated Approach of Nutrient Management for Improvement in Crop Productivity of Okra (Abelmoschus esculentus (L.) Moench) cv. Arka Anamika R Narwariya, A Sharma, S Gupta Biological Forum–An International Journal 14 (4), 479-483 , 2022 2022 Citations: 1
Genetic variability and elite line selection for high essential oil and nepetalactone content in catmint (Nepeta cataria L.) A Srivastava, S Gupta, S Singh, RS Verma, RK Srivastava, AK Gupta, ... Am. J. Plant Sci 12 (07), 1135-1154 , 2021 2021 Citations: 22
Mutations in tomato 1‐aminocyclopropane carboxylic acid synthase2 uncover its role in development beside fruit ripening K Sharma, S Gupta, S Sarma, M Rai, Y Sreelakshmi, R Sharma The Plant Journal 106 (1), 95-112 , 2021 2021 Citations: 59
Mutations in tomato 1-aminocyclopropane carboxylic acid synthase2 uncover its role in development beside system II responses K Sharma, S Gupta, S Sarma, M Rai, Y Sreelakshmi, R Sharma bioRxiv, 2020.05. 12.090431 , 2020 2020 Citations: 1
Genetic diversity in Indian poppy (P. somniferum L.) germplasm using multivariate and SCoT marker analyses A Srivastava, S Gupta, K Shanker, N Gupta, AK Gupta, RK Lal Industrial Crops and Products 144, 112050 , 2020 2020 Citations: 35
CIM-Sushil: a high vindoline yielding variety of Catharanthus roseus (L.) G. Don AK Gupta, AK Shukla, P Singh, M Mall, S Yadav, AK Shasany, K Shanker, ... J Med Arom Plant Sci 42 (1-2), 51-63 , 2020 2020 Citations: 10
Genetics, Cytogenetics, and Genetic Diversity in the Genus Ocimum S Gupta, A Srivastava, AK Shasany, AK Gupta The Ocimum Genome, 73-87 , 2018 2018 Citations: 27
Variability and heritability studies in floral homeotic mutants of Papaver somniferum L. SK Singh*, S Gupta*, N Ahmad, AK Shukla, AK Shasany, RK Lal, ... Industrial Crops and Products 95, 276–285 , 2017 2017 Citations: 9
Tomato fruits show wide phenomic diversity but fruit developmental genes show low genomic diversity V Mohan*, S Gupta*, S Thomas, H Mickey, C Charakana, VS Chauhan, ... PloS one 11 (4), e0152907 , 2016 2016 Citations: 60
First Report of Downy Mildew on Opium Poppy Caused by Peronospora meconopsidis in India S Gupta, A Khan, OP Dhawan Plant Disease 100 (15), 2525 , 2016 2016 Citations: 7
Fusarium oxysporum f. sp. ciceri Race 1 Induced Redox State Alterations Are Coupled to Downstream Defense S Gupta, A Bhar, M Chatterjee, S Das 2013
Fluorescent dye labeled DNA size standards for molecular mass detection in visible/infrared range S Gupta, C Charakana, Y Sreelakshmi, R Sharma BMC research notes 4 (1), 12 , 2011 2011 Citations: 3
NEATTILL: A simplified procedure for nucleic acid extraction from arrayed tissue for TILLING and other high-throughput reverse genetic applications Y Sreelakshmi, S Gupta, R Bodanapu, VS Chauhan, M Hanjabam, ... Plant methods 6 (1), 3 , 2010 2010 Citations: 50
Assessment of menthol mint collection for genetic variability and monoterpene biosynthetic potential AK Shasany, S Gupta, MK Gupta, AA Naqvi, JR Bahl, SPS Khanuja Flavour and fragrance journal 25 (1), 41-47 , 2010 2010 Citations: 11
Computer aided data acquisition tool for high-throughput phenotyping of plant populations RN Vankadavath, AJ Hussain, R Bodanapu, E Kharshiing, PO Basha, ... Plant methods 5 (1), 18 , 2009 2009 Citations: 41
Screening and analysis of expressed sequence tags from the trichome specific cDNA library of menthol mint (Mentha arvensis) SS Dhawan, AK Shasany, S Gupta, A Bakhla, S Pal, P Nair, SPS Khanuja Journal of Medicinal and Aromatic Plant Sciences 30, 281-285 , 2008 2008 Citations: 3
Chemotypic comparison of AFLP analyzed Indian Peppermint germplasm to selected peppermint oils of other countries AK Shasany, S Gupta, MK Gupta, AK Singh, AA Naqvi, SPS Khanuja Journal of Essential Oil Research 19 (2), 138-145 , 2007 2007 Citations: 9
MOST CITED SCHOLAR PUBLICATIONS
Use of RAPD and AFLP Markers to Identify Inter- and Intraspecific Hybrids of Mentha AK Shasany, MP Darokar, S Dhawan, AK Gupta, S Gupta, AK Shukla, ... Journal of Heredity 96 (5), 542-549 , 2005 2005 Citations: 125
Tomato fruits show wide phenomic diversity but fruit developmental genes show low genomic diversity V Mohan*, S Gupta*, S Thomas, H Mickey, C Charakana, VS Chauhan, ... PloS one 11 (4), e0152907 , 2016 2016 Citations: 60
Mutations in tomato 1‐aminocyclopropane carboxylic acid synthase2 uncover its role in development beside fruit ripening K Sharma, S Gupta, S Sarma, M Rai, Y Sreelakshmi, R Sharma The Plant Journal 106 (1), 95-112 , 2021 2021 Citations: 59
NEATTILL: A simplified procedure for nucleic acid extraction from arrayed tissue for TILLING and other high-throughput reverse genetic applications Y Sreelakshmi, S Gupta, R Bodanapu, VS Chauhan, M Hanjabam, ... Plant methods 6 (1), 3 , 2010 2010 Citations: 50
Computer aided data acquisition tool for high-throughput phenotyping of plant populations RN Vankadavath, AJ Hussain, R Bodanapu, E Kharshiing, PO Basha, ... Plant methods 5 (1), 18 , 2009 2009 Citations: 41
Genetic diversity in Indian poppy (P. somniferum L.) germplasm using multivariate and SCoT marker analyses A Srivastava, S Gupta, K Shanker, N Gupta, AK Gupta, RK Lal Industrial Crops and Products 144, 112050 , 2020 2020 Citations: 35
Industrial mint crop revolution, new opportunities, and novel cultivation ambitions: A review S Gupta, A Kumar, AK Gupta, AC Jnanesha, M Talha, A Srivastava, ... Ecological Genetics and Genomics 27, 100174 , 2023 2023 Citations: 29
Genetics, Cytogenetics, and Genetic Diversity in the Genus Ocimum S Gupta, A Srivastava, AK Shasany, AK Gupta The Ocimum Genome, 73-87 , 2018 2018 Citations: 27
First report of a 16SrVI group phytoplasma associated with witches'-broom disease on Withania somnifera A Samad, AK Shasany, S Gupta, PV Ajayakuar, MP Darokar, ... Plant Disease 90 (2), 248-248 , 2006 2006 Citations: 26
Genetic variability and elite line selection for high essential oil and nepetalactone content in catmint (Nepeta cataria L.) A Srivastava, S Gupta, S Singh, RS Verma, RK Srivastava, AK Gupta, ... Am. J. Plant Sci 12 (07), 1135-1154 , 2021 2021 Citations: 22
AFLP analysis for genetic relationships among Mentha species. AK Shasany, AK Shukla, S Gupta, S Rajkumar, SPS Khanuja 2005 Citations: 16
Assessment of menthol mint collection for genetic variability and monoterpene biosynthetic potential AK Shasany, S Gupta, MK Gupta, AA Naqvi, JR Bahl, SPS Khanuja Flavour and fragrance journal 25 (1), 41-47 , 2010 2010 Citations: 11
CIM-Sushil: a high vindoline yielding variety of Catharanthus roseus (L.) G. Don AK Gupta, AK Shukla, P Singh, M Mall, S Yadav, AK Shasany, K Shanker, ... J Med Arom Plant Sci 42 (1-2), 51-63 , 2020 2020 Citations: 10
Variability and heritability studies in floral homeotic mutants of Papaver somniferum L. SK Singh*, S Gupta*, N Ahmad, AK Shukla, AK Shasany, RK Lal, ... Industrial Crops and Products 95, 276–285 , 2017 2017 Citations: 9
Chemotypic comparison of AFLP analyzed Indian Peppermint germplasm to selected peppermint oils of other countries AK Shasany, S Gupta, MK Gupta, AK Singh, AA Naqvi, SPS Khanuja Journal of Essential Oil Research 19 (2), 138-145 , 2007 2007 Citations: 9
High menthofuran chemotype “CIM-Indus" of Mentha x piperita RK Upadhyay, TP Priya, AK Singh, MP Darokar, AK Singh Journal of Medicinal and Aromatic Plant Sciences 27, 721-726 , 2005 2005 Citations: 9
Saussurea costus (Kust) and Senna alexandrina (Senna) A Dubey, S Gupta, M Khatoon, AK Gupta Herbs, shrubs, and trees of potential medicinal benefits, 261-290 , 2022 2022 Citations: 8
Estimation of genetic diversity utilizing gene-targeted SCoT markers and morpho-chemotypic analyses in Senna alexandrina Mill.(Senna) A Kumar, AK Gupta, S Siddiqui, S Gupta, RK Lal, A Srivastava, ... Ecological Genetics and Genomics 31, 100252 , 2024 2024 Citations: 7
First Report of Downy Mildew on Opium Poppy Caused by Peronospora meconopsidis in India S Gupta, A Khan, OP Dhawan Plant Disease 100 (15), 2525 , 2016 2016 Citations: 7
A sweet smelling peppermint plant,'CIM-Madhuras'. SPS Khanuja, AK Shasany, AK Alok Kalra, NK Patra, MP Darokar, ... 2004 Citations: 5