Pattern of genetic variation of yellow catfish Pelteobagrus fulvidraco Richardso in Huaihe river and the Yangtze river revealed using mitochondrial DNA control region sequences

Abstract

Genetic variability and population genetic structure of the yellow catfish Pelteobagrus fulvidraco Richardso in the Huaihe river and the Yangtze river was examined with a 810-bp of the mitochondrial DNA control region. A total of 70 haplotypes were identified from 145 samples, which were characterized with high haplotype diversity (h = 0.9832 ± 0.0041) but low nucleotide diversity (π = 0.0415 ± 0.0201). The analysis of molecular variance and phylogenetic reconstructions detected significant geographic structure between Huaihe river and Yangtze with FST = 0.1183 (P = 0.0000). Neighbor-joining (NJ) phylogenetic analyses identified two distinct clades (bootstrap support 99 %). The medium joining network drawn using the complete data set was reticulated and also distinctly split the 70 haplotypes into two groups corresponding to those of the NJ tree. Departures from neutrality were not significant for the Huaihe river and the Yangtze river Pelteobagrus fulvidraco, concordant with the observed multimodal mismatch distributions (P > 0.05), which suggested that the effective size of this species has been large and stable for a long period. The question about the existence of significant genetic differentiation for Pelteobagrus fulvidraco in the Yangtze river and Huaihe river basins remains to be further studied with molecular nuclear markers and larger sample sizes from throughout the river basins.

Population genetic structure of the yellow catfish (Pelteobagrus fulvidraco) in China inferred from microsatellite analyses: implications for fisheries management and breeding

“…It has been reported that the Yangtze River system is the center of the natural distribution of yellow catfish, as well as the main culture region of yellow catfish together with the Pearl River system (Chu, Zheng, & Dai, 1999; Li et al, 2018). Population genetics studies based on microsatellites and mtDNA sequences in other studies also found high genetic diversity in the Yangtze River, as we report here (Guo, Guo, et al, 2019; Xiao et al, 2014). However, low or moderate genetic diversity has also been reported (Li et al, 2009; Liu et al, 2016; Liu, Zhong, & Pan, 2013; Zhong et al, 2013, 2018; Zhou et al, 2016).…”

“…The population genetic structure pattern among populations in this study is comparable with those reported previously for the yellow catfish. Based on the mtDNA sequences and microsatellite loci analyses, no obvious genetic differentiation was detected among the populations in the Yangtze River and the Pearl River systems, but significant genetic differentiation was detected between populations in Yangtze River and the other populations not in the Yangtze River (Guo, Guo, et al, 2019; Ku, Zhou, & He, 2010; Li et al, 2009; Xiao et al, 2014; Yang, Mayden, & He, 2009; Zhong et al, 2013, 2018; Zhou et al, 2016). The conclusions presented herein may be more accurate and confirm the population genetic structure of yellow catfish in China.…”

“…The yellow catfish in North China are a different genetic group and represent a potentially important genetic resource for fisheries management and breeding. Till now, most of the population genetic studies of yellow catfish focused on populations in the Yangtze River, with only a few including the populations in North China (Ku et al, 2010; Li et al, 2009; Xiao et al, 2014; Yang et al, 2009). According to previous reports, clear genetic differentiation was found between populations from the Yangtze River and all other populations in the North.…”

“…Several reports have already been made regarding the genetic structure of natural yellow catfish populations, but so far, these have all focused on a narrow geographic range and/or few locations with limited sample size (e.g., Fang et al, 2005; Guo, Guo, Wang, Hu, & Mei, 2019; Li, Yin, Hou, Sun, & Liang, 2009; Liu et al, 2013; Liu, Chen, & Fei, 2016; Wang et al, 2012; Xiao, Bao, & Cui, 2014; Zhang et al, 2015; Zhong et al, 2013, 2018; Zhou, Wang, Jin, Gao, & Song, 2016). Moreover, most of their results were based on only a few DNA markers (e.g., microsatellites or mtDNA regions), and no comprehensive results have been reported to date.…”

Parentage determination of yellow catfish (Pelteobagrus Fulvidraco) based on microsatellite DNA markers

“…The production of yellow catfish was about 300 thousand tons in 2013, with annual increase between 15 and 20 % in recent years. However, overfishing and pollutions from pesticides and industrial wastewater have seriously reduced the natural populations of yellow catfish (Xiao et al 2014). The breeding parents of yellow catfish are captured from the wild or from the population that has been cultured for several generations.…”