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Updated: Jun 24, 2026

Genotyping of Plant and Animal Samples without Prior DNA Purification

Genotyping of Plant and Animal Samples without Prior DNA Purification

Published on: September 24, 2012

[ABO genotyping by PCR-direct sequencing method].

X Jiang¹, G Hou, J Yu

¹Liaoning Province Criminal Science and Technology Institute, Shenyang, Liaoning, 110032 P.R.China.

Zhonghua Yi Xue Yi Chuan Xue Za Zhi = Zhonghua Yixue Yichuanxue Zazhi = Chinese Journal of Medical Genetics

|December 9, 2000

Summary

This summary is machine-generated.

This study introduces PCR-direct sequencing for ABO genotyping, identifying specific nucleotide differences in the A transferase gene. This method accurately distinguishes all ABO genotypes, offering a new approach for genetic analysis.

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Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing

Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing

Published on: February 10, 2023

Area of Science:

Molecular Biology
Genetics
Biochemistry

Context:

The ABO blood group system is crucial for transfusion medicine and human identification.
Accurate ABO genotyping is essential for clinical diagnostics and population genetics.
Existing genotyping methods may have limitations in distinguishing certain alleles.

Purpose:

To analyze sequence variations within the human A transferase gene corresponding to ABO alleles.
To develop and validate a Polymerase Chain Reaction (PCR)-direct sequencing method for precise ABO genotyping.
To establish a reliable method for differentiating between human A, B, and O alleles based on genetic markers.

Summary:

PCR-direct sequencing was employed to examine two critical regions (233-433 and 660-788) of the A transferase gene cDNA.
Nucleotide substitutions at positions 258, 297, and 700 were identified, enabling the differentiation of A, B, and O alleles.
The analysis revealed that specific variations in the 233-433 region are sufficient to determine eight ABO genotypes, with the 660-788 region resolving the remaining two.

Impact:

Provides an effective and novel PCR-direct sequencing technique for ABO blood group genotyping.
Enhances the accuracy and efficiency of determining individual ABO genotypes.
Facilitates advancements in transfusion compatibility, forensic science, and anthropological studies.