Genetic diversity of two color morphs of Northern snakehead (Channa argus) unveiled by the mitochondrial DNA D-loop region

文献类型： 外文期刊

第一作者： Fan, Wei

作者： Fan, Wei;Su, Jian;Luo, Yu;Jiao, Xiao-Lei;Zhuo, Ting;Su, Quan-Sen;Wu, Jun;Zhang, Lu;Huang, Zhi-Peng;Zhao, Han;Zhao, Zhong-Meng;Duan, Yuan-Liang;Li, Qiang;Du, Jun;Zhou, Jian

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关键词： Channa argus; D-loop region; Genetic diversity

期刊名称：MITOCHONDRIAL DNA PART B-RESOURCES （ 影响因子：0.61； 五年影响因子：0.628 ）

ISSN：

年卷期： 2022 年 7 卷 3 期

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收录情况： SCI

摘要： To analyze the genetic background of 'white' type Northern snakehead (Channa argus), and provide atheoretical basis for breeding of C. argus, the investigation of genetic diversity and population structure were investigated based on the complete sequences of mitochondrial DNA D-loop region for three cultured 'white' type C. argus populations, and four 'bicolor' type C. argus populations were used to compare with them; 28 mutation loci and 30 haplotypes were found in the D-loop sequence of all individuals with a total length of 907 bp. The highest haplotype diversity (H-d ) and nucleotide diversity (P-i ) in the 'white' type C. argus populations were 0.505 and 0.00057, respectively, which lower than those in the 'bicolor' type C. argus populations (H-d = 0.911, P-i = 0.00326). Population differentiation values (F (ST)) show that the four 'bicolor' type C. argus populations had obvious genetic differentiation (Fst: 0.21902-0.49428. p < 0.01), but not in the three 'white' type C. argus populations (Fst: -0.00571 to 0.07261. p > 0.05). The phylogenetic tree and Median Joining (MJ) network showed that the genetic distance among 'white' type C. argus populations is very close. Therefore, much attention should be paid to protecting population genetic diversity and avoiding inbreeding in the breeding of 'white' type C. argus.

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