A5061440029- Chromosomal and Genetic Variations
- Plant tissue culture and regeneration
- Plant Reproductive Biology
- Plant Taxonomy and Phylogenetics
- Plant Molecular Biology Research
- Plant Genetic and Mutation Studies
- Plant Virus Research Studies
- Genetic diversity and population structure
- Plant Disease Resistance and Genetics
- Legume Nitrogen Fixing Symbiosis
- Agronomic Practices and Intercropping Systems
- Botanical Research and Chemistry
- Flowering Plant Growth and Cultivation
- Genomics and Phylogenetic Studies
- Plant Pathogens and Resistance
- Genomic variations and chromosomal abnormalities
- Genetic and Environmental Crop Studies
- Plant Parasitism and Resistance
- Photosynthetic Processes and Mechanisms
- DNA and Nucleic Acid Chemistry
- Plant Micronutrient Interactions and Effects
- Soil Carbon and Nitrogen Dynamics
- Potato Plant Research
- Plant Diversity and Evolution
- Genetic Mapping and Diversity in Plants and Animals
National Botanical Research Institute
2023-2024
University of Lucknow
2004-2022
Central Institute of Medicinal and Aromatic Plants
2006-2022
Osaka Kyoiku University
2004
University of Calcutta
1979-1985
Centre of Advanced Studies
1984
Presidency University
1981-1982
Chaudhary Charan Singh University
1982
Universidad del Valle
1978
Whole genome duplication leads to autopolyploidy and brings about an increase in cell size, concentration of secondary metabolites enhanced cytosine methylation. The increased size offers a positive advantage polyploids for cell-surface-related activities, but there is differential response change body across species taxonomic groups. Although polyploidy has been very extensively studied, having genetic, ecological evolutionary implications, no report that underscores the significance native...
Ocimum L. of family Lamiaceae is a well known genus for its ethnobotanical, medicinal and aromatic properties, which are attributed to innumerable phenylpropanoid terpenoid compounds produced by the plant. To enrich genomic resources understanding various pathways, de novo transcriptome sequencing two important species, O. sanctum basilicum, was carried out Illumina paired-end sequencing.The sequence assembly resulted in 69117 130043 transcripts with an average length 1646 ± 1210.1 bp 1363...
Polyploidization is often accompanied by increased cell size and conspicuous changes in secondary metabolism. Where vegetative plant organs are the source of metabolites, as case with most medicinal plants, ploidy manipulations such direct chromosome doubling or allopolyploidization provide a rapid means to realize enhanced production phyto-pharmaceuticals. Supported prospective examples, this article illustrates potential genomic manipulation enhance resourcing pharmaceuticals origin...
Abstract Vetiver, a perennial C 4 grass, has long been known for its multifarious uses in perfumery, medicine and environmental protection. Two distinct vetiver morphotypes have identified India, i.e., A. North Indian type characterized by thick smooth fast growing roots that produce superior quality of laevorotatory oil; B. South with more number thin hairy inferior dextrorotatory oil. The two were targeted transcriptome analysis to understand the contribution genetic background on oil root...
In 23 species of Papaver L., 2C nuclear DNA amounts range from 4.64 pg in persicum (2n = 14) to 22.43 orientale 42), revealing a fivefold variation within the genus. However, such is limited only twofold among that have same chromosome number 14). The distribution discontinuously spread over six groups A strong positive correlation exists between content and metaphase length. Viewed context evolutionary divergence, it revealed reduction has taken place conjunction with speciation. This...
Somatic karyotypes of nine diploid species Lathyrus (2n = 14) have been analyzed using the Giemsa C-banding technique. Distribution heterochromatic segments is characteristic Annual and perennial could be separated into two distinct groups on basis their unique C-band endowment Outbreeding are characterized by C bands distributed all over arms chromosomes, whereas inbreeding annual usually exhibit centromeric and/or terminally localized Species differ with respect to number position bands,...
Fluorescence In Situ Hybridization (FISH) technique has been applied on somatic chromosomes and extended DNA fibers in the medicinally important species of Chlorophytum to elucidate physical localization measurement rDNA sites using two rRNA multigene families homologous 45S 5S rDNA. The Chlorophytum, namely C. borivillianum comosum, both with 2n = 28, reveal diversity for copy number sites. is comprised five 45S-rDNA sites:one each secondary constriction region 7, 8, 9; one subtelomeric...
High pollen and seed fertility of induced autotetraploids the medicinal solanaceous plant Hyoscyamus muticus (4x = 56) could, at least in part, be attributed to low quadrivalent high bivalent frequencies metaphase I (MI). Mean configuration per cell were 3.45 ring quadrivalents, 0.49 chain 0.55 trivalents, 5.98 bivalents, 12.67 open (rod) 1.34 univalents. In diploid, bivalents most common with chiasmata predominantly distal diakinesis–MI. Different causes can explain tetraploids. Using a...
Artificial polyploidy that brings about increase in cell size confers changes histo-morphology leading to altered phenotype, causing physiological attributes and enhanced concentration of secondary metabolites. The phenotype is generally a manifestation tissue hardiness reflected as robust plant type. Based on case study undertaken an industrially important grass, Cymbopogon khasianus (2 n = 60) valued for its citral rich essential oil, here we report the artificial not only enhancement oil...
The conventional protocol for isolation of cell wall free nuclei release DNA fibers plants involves mechanical removal the and separation debris by sieve filtration. grinding pressure applied during process leaves only more tolerant G 1 intact, all other states active that may be present in target tissues (e.g., leaf) are simply crushed/disrupted process. Here we describe an alternative enzymatic from root tip tissue. Cell at a given stage cycle, any debris, could realized suspension fit...