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Single Nucleotide Polymorphisms-SNPs

Single Nucleotide Polymorphisms-SNPs

A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...

Comparing Copy Number Variations and SNPs

Comparing Copy Number Variations and SNPs

Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...

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Updated: Jun 26, 2026

Identification of Post-translational Modifications of Plant Protein Complexes

Identification of Post-translational Modifications of Plant Protein Complexes

Published on: February 22, 2014

SNP identification in crop plants.

Martin W Ganal¹, Thomas Altmann, Marion S Röder

¹TraitGenetics GmbH, Am Schwabeplan 1b, D-06466 Gatersleben, Germany. ganal@traitgenetics.de

Current Opinion in Plant Biology

|February 3, 2009

Summary

Single nucleotide polymorphism (SNP) markers are crucial for crop plant research but are scarce. This review covers current SNP marker development technologies and future approaches for identifying these vital genetic markers.

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Area of Science:

Plant genetics and genomics
Molecular markers in agriculture

Background:

Single nucleotide polymorphism (SNP) markers are essential tools in plant science.
A significant gap exists in the availability of validated SNP markers for many crop plants.
These markers are critical for diverse applications including genetic variation studies, linkage mapping, and plant breeding.

Purpose of the Study:

To review the current state of SNP marker development technologies in major crop plants.
To provide an outlook on future SNP identification strategies.
To highlight the importance of SNP markers for advancing crop improvement and research.

Main Methods:

Literature review of existing SNP marker development technologies.
Analysis of current trends and challenges in SNP marker availability for crops.
Exploration of emerging technologies and approaches for SNP discovery.

Main Results:

Current SNP marker development technologies are summarized.
The review identifies a low number of validated SNP markers for many crop species.
Future SNP identification approaches are discussed, leveraging genome sequencing and next-generation sequencing (NGS).

Conclusions:

There is a pressing need to increase the number of validated SNP markers for crop plants.
Advancements in genome sequencing and NGS technologies will facilitate future SNP discovery.
Enhanced SNP marker resources will significantly benefit plant genetic research and breeding programs.