This invention relates to a 3'RACE
library construction and sequencing method and its application based on third-generation sequencing technology. The method includes: S1, using primers containing anchor sequences and Oligo d(T) to reverse transcribe sample
RNA to obtain cDNA, which is then used as a template for specific amplification to obtain the
target gene; S2, designing
specific primers containing third-generation sequencing adapters and barcodes, using the
target gene as a template for amplification, and constructing a high-
throughput third-generation sequencing
library; S3, performing third-generation sequencing and analysis on the
library to obtain the complete 3' end sequence information of the target transcript. This invention abandons traditional vector construction and
Sanger sequencing methods, leveraging the high
throughput and long read length characteristics of third-generation sequencing to ensure that Race experiments obtain a large amount of long 3' end sequence information in a short period, improving the
overall efficiency and
data accuracy of the experiment, and laying the foundation for refined mRNA research.