DNA fingerprinting in botany: past, present, future.

Area of Science:

• Molecular Biology
• Genetics
• Plant Science

Background:

• DNA fingerprinting revolutionized individual identification across species since its 1985 debut.
• Early methods relied on restriction fragment analysis and Southern blotting.
• The field has seen rapid evolution with diverse techniques emerging and being replaced by more efficient ones.

Purpose of the Study:

• To review the historical development and technological phases of DNA fingerprinting.
• To highlight the transition from early methods to current PCR-based techniques and future sequencing approaches.
• To provide examples of plant DNA fingerprinting applications.

Main Methods:

• Review of historical DNA fingerprinting techniques.
• Analysis of technological advancements in DNA profiling.
• Categorization of methods into three distinct phases: past, present, and future.

Main Results:

• The past phase was dominated by restriction fragment analysis.
• The present phase utilizes PCR-based single- and multi-locus profiling, common in plant DNA fingerprinting.
• The future phase is characterized by high-throughput DNA sequencing technologies like genotyping-by-sequencing.

Conclusions:

• DNA fingerprinting methodologies have progressed through distinct technological phases.
• PCR-based markers remain crucial for routine plant DNA fingerprinting.
• Advanced sequencing technologies are poised to transform future DNA fingerprinting applications, especially in non-model species.