Population genetic structure and geographic differentiation in butter catfish, Ompok bimaculatus , from Indian waters inferred by cytochrome b mitochondrial gene

Abstract

Documentation of genetic differentiation among the populations of a species can provide useful information that has roles in conservation, breeding, and management plans. In the present study, we examined the genetic structure and phylogenetic relationships among the 149 individuals of Ompok bimaculatus belonging to 24 populations, collected from Indian waters, using cytochrome b gene. The combined analyses of data suggested that the Indian O. bimaculatus consist of three distinct mtDNA lineages with star-like haplotypes network, which exhibited high genetic variation and haplotypic diversity. Analysis of molecular variance indicated that most of the observed genetic variation was found among the populations suggesting restricted gene flow. Long-term interruption of gene flow was also evidenced by high overall Fst values (0.82367) that could be favored by the discontinuous distributions of the lineages.

Revealing Spanish mackerel’s diversity in Indonesian through local commodities in the fish market

“…The cytochrome b gene has been used to evaluate the fish genetic diversity and phylogeny. Investigations across closely related species are viable because CYT B markers develop fast (Zhu et al 2016;Kumar et al 2017;Megarani et al 2020;Ibrahim 2021).…”

A new species of genus Psalidodon Eigenmann, 1911relatedto the P. paranae complex (Characiformes Characidae) fromUpper Paranaíba river basin, Brazil, supported by genetic andmorphometric data

“…Rocha et al (2019) used morphometrics and cytochrome b (cyt b) sequence to demonstrate the distinctiveness between P. paranae and P. rivularis Lütken, 1875, both formerly subspecies of P. scabripinnis from Upper Parana and São Francisco river basins, respectively. Kumar et al (2017) also used cytB to show three mitochondrial lineages with high genetic variation and haplotypic diversity in Ompok bimaculatus Bloch, 1974. Using the same tool, Zhu et al (2016) found moderate to high levels of genetic differentiation in 11 populations of Scomber japonicus Houttuyn, 1782, with two of them well structured, showing high diversity besides the other nine with low ones.…”

Determination of genetic structure in Barbus tauricus Kessler, 1877 populations inhabiting a few streams along the Black Sea Region (Turkey) inferred from mtDNA Cytochrome b gene sequence analysis

“…Cyt b gene has been preferred for both in-species and interspecific variations in many studies (Berrebi, 1995;Callejas and Ochando, 2002;Kartavtsev and Lee, 2006;Sakai et al, 2009;Markovà et al, 2010;Zheng et al, 2016;Behera et al, 2017;Kumar et al, 2017). There are some studies about genetic structure of Barbus species from different regions performed on understanding the phylogeny among the species.…”

“…The results of AMOVA showed the presence of high (40.69%) within population variation which favored the haplotype differentiation. Livi et al (2013) evaluated the molecular and morphometric properties of the Barbus species sampled from Italy and reported 29.80% of Barbus spp. diversity within populations and 63.78% among groups.…”

“…It has been reported that cyt b genes differ in population level. Consequently, this region was preferred for a lot of studies (Gilles et al, 1998;Aboim et al, 2005;Sevilla et al, 2007;Rylková et al, 2013;Kartavtsev et al, 2017;Kumar et al, 2017).…”