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Characterization of Single Nucleotide Polymorphism Marker in the Chinese Giant Salamander Andrias davidianus

DOI: 10.18805/ag.D-200    | Article Id: D-200 | Page : 476-483
Citation :- Characterization of Single Nucleotide Polymorphism Marker in the Chinese Giant Salamander Andrias davidianus.Agricultural Science Digest.2021.(41):476-483
Quanhe Wang, Lei Cheng, Haifeng Tian, Xiaoli Dong, Hanbing Xiao, Qiaomu Hu, Yumei Chang hqmu0806@163.com
Address : Department of Dairy Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.
Submitted Date : 12-09-2019
Accepted Date : 9-11-2020

Abstract

Background: Chinese giant salamander Andrias davidianus is called “baby fish” in China. Due to its palatability and nutritional value, it was widely cultured in China. The current study was to evaluate the genetic diversity of the farmed A. davidianus
Methods: 30 salamanders were collected from farm and DNA was extracted. Thirty contigs potentially containing SNPs were selected from the previously developed RAD-seq library. The primer was designed and PCR was performed, than the products was sequenced from different direction. At last the sequences were analyzed using the vector NTI 10.
Result: 5824bp high-quality sequences embodied in 16 contigs were sequenced and eighty SNP loci were identified which each SNP locus exhibited bi-alleles. The effective allele number from 1.03 to 2.00 and the minor allele frequency was 0.017 to 0.500. The expected heterozygosity was from 0.0333 to 0.5091 and the observed heterozygosity was 0.0333 to 1.0000. Sixty-six of the 80 loci significantly deviated from the Hardy-Weinberg equilibrium (P < 0.05). The results provide useful genomic resources to evaluate the genetic diversity of A. davidianus for conservation and aquaculture.

Keywords

Andrias davidianus Amphibian Genetic diversity SNP marker

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