PapersFlow Research Brief
Plant Genetic and Mutation Studies
Research Guide
What is Plant Genetic and Mutation Studies?
Plant Genetic and Mutation Studies is a research field that applies mutation breeding techniques such as TILLING and induced mutations, often using ionizing radiation, to enhance crops through functional genomics, genetic variation analysis, point mutation identification, and reverse genetics.
This field encompasses 35,267 works focused on genome-wide sequencing and methods for plant improvement. Techniques like TILLING target point mutations for functional analysis in crop species. Induced mutations via ionizing radiation generate genetic variation for breeding programs.
Topic Hierarchy
Research Sub-Topics
TILLING in Plants
Targeting Induced Local Lesions IN Genomes identifies EMS-induced point mutations via CEL1 mismatch cleavage. Researchers apply high-throughput TILLING for functional genomics in crops like wheat and tomato.
Mutation Breeding
This sub-topic covers chemical and radiation mutagenesis for crop trait improvement and variety registration. Studies evaluate induced variation in rice, barley, and banana breeding programs.
Reverse Genetics in Plants
Research employs TILLING, CRISPR, and RNAi to validate candidate gene functions from sequencing data. It focuses on abiotic stress tolerance and yield QTL dissection in maize and soybean.
Genome-wide Sequencing Mutations
Studies develop exome capture and deep sequencing detecting rare variants in mutant populations. Researchers characterize mutation spectra and density maps in mutagenized plant lines.
Induced Mutations Radiation
This area investigates gamma ray, X-ray, and ion beam mutagenesis spectrum and heritability. Research optimizes dosimetry for spike, seed, and callus treatments in cereals and ornamentals.
Why It Matters
Plant Genetic and Mutation Studies supports crop improvement by identifying mutations that enhance traits like stress resistance and yield. For example, reverse genetics methods enable precise functional genomics studies to develop varieties with improved nutritional profiles or pathogen resistance. Ionizing radiation-induced mutations have been applied in breeding programs for staple crops, addressing food security in agriculture. "Influence of abiotic stress signals on secondary metabolites in plants" by Akula Ramakrishna and G. A. Ravishankar (2011) shows how stress-induced genetic changes boost secondary metabolites used in pharmaceuticals and food additives.
Reading Guide
Where to Start
"Rapid isolation of high molecular weight plant DNA" by Michael G. Murray and William F. Thompson (1980), as it provides a foundational method for obtaining pure, high-quality plant DNA essential for all downstream mutation and genetic variation studies.
Key Papers Explained
"Rapid isolation of high molecular weight plant DNA" by Murray and Thompson (1980) establishes DNA extraction protocols (12,146 citations) used in subsequent works like "Nuclear DNA content of some important plant species" by Arumuganathan and Earle (1991), which quantifies genome sizes for mutation breeding targets (3,200 citations). "Influence of abiotic stress signals on secondary metabolites in plants" by Ramakrishna and Ravishankar (2011) builds on these by linking stress-induced genetic changes to metabolite pathways (2,399 citations), informing functional genomics applications.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Current work emphasizes integrating TILLING with genome-wide sequencing for reverse genetics in crop improvement, though no recent preprints are available. Focus remains on induced mutations and point mutation identification via established methods like those in the top-cited papers.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Rapid isolation of high molecular weight plant DNA | 1980 | Nucleic Acids Research | 12.1K | ✓ |
| 2 | Transformation of intact yeast cells treated with alkali cations | 1983 | Journal of Bacteriology | 7.7K | ✓ |
| 3 | A gene complex controlling segmentation in Drosophila | 1978 | Nature | 3.8K | ✕ |
| 4 | Efficient transfer of large DNA fragments from agarose gels to... | 1979 | Proceedings of the Nat... | 3.4K | ✓ |
| 5 | Nuclear DNA content of some important plant species | 1991 | Plant Molecular Biolog... | 3.2K | ✕ |
| 6 | Separation of yeast chromosome-sized DNAs by pulsed field grad... | 1984 | Cell | 2.8K | ✕ |
| 7 | High efficiency transformation of E.coli by high voltage elect... | 1988 | Nucleic Acids Research | 2.8K | ✓ |
| 8 | Hydrogen Ion Buffers for Biological Research<sup>*</sup> | 1966 | Biochemistry | 2.7K | ✕ |
| 9 | High resolution acrylamide gel electrophoresis of histones | 1969 | Archives of Biochemist... | 2.5K | ✕ |
| 10 | Influence of abiotic stress signals on secondary metabolites i... | 2011 | Plant Signaling & Beha... | 2.4K | ✓ |
Frequently Asked Questions
What is TILLING in plant genetic studies?
TILLING (Targeting Induced Local Lesions in Genomes) is a reverse genetics method that identifies point mutations in specific genes using high-throughput screening. It combines chemical mutagenesis with genome-wide sequencing to detect induced mutations in plants. This technique supports functional genomics for crop trait improvement.
How does ionizing radiation induce mutations in plants?
Ionizing radiation causes DNA damage leading to point mutations and genetic variation in plant genomes. It is used in mutation breeding to generate diverse mutants for selection in crop improvement programs. These mutations are then analyzed via genome-wide sequencing.
What role does functional genomics play in plant mutation studies?
Functional genomics in this field maps gene functions through mutation analysis and reverse genetics. Techniques like TILLING reveal how point mutations affect plant traits. It enables targeted improvements in crops such as yield and stress tolerance.
What are key methods for DNA isolation in plant genetic research?
"Rapid isolation of high molecular weight plant DNA" by Michael G. Murray and William F. Thompson (1980) describes a procedure yielding uncontaminated DNA over 50,000 base pairs long. This DNA supports complete restriction endonuclease digestion for genetic analysis. The method isolates total cellular DNA including nuclear, chloroplast, and mitochondrial components.
How do abiotic stresses influence plant genetics and mutations?
"Influence of abiotic stress signals on secondary metabolites in plants" by Akula Ramakrishna and G. A. Ravishankar (2011) demonstrates that stresses trigger accumulation of secondary metabolites via genetic responses. These metabolites serve as pharmaceuticals, food additives, and biochemicals. Mutation studies under stress reveal regulatory pathways for plant improvement.
Open Research Questions
- ? How can TILLING be optimized for polyploid crop genomes to improve mutation detection efficiency?
- ? What are the long-term stability outcomes of ionizing radiation-induced mutations across generations in major staple crops?
- ? How do point mutations identified via reverse genetics interact with abiotic stress signals to modulate secondary metabolite production?
- ? Which genome-wide sequencing approaches best resolve genetic variation from induced mutations in functional genomics?
Recent Trends
The field maintains 35,267 works with a focus on mutation breeding and functional genomics, but 5-year growth data is unavailable.
No recent preprints or news coverage from the last 12 months indicates steady reliance on established techniques like TILLING and ionizing radiation-induced mutations.
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