Abstract
Pampus argenteus is an economically important fish that is often erroneously identified as Pampus echinogaster. No population genetic analyses have been performed on the true P. argenteus species. Here, the mitochondrial control region (CR) was used to evaluate the population genetics and elaborate the historical demography of the Silver pomfret collected from six geographical locations in China, Pakistan, and Kuwait. A high level of genetic diversity was demonstrated in this species. Analysis of molecular variance (AMOVA) revealed that the genetic divergence was mainly derived from within the populations (P < 0.05). A historical demographic analysis indicated that the Silver pomfret experienced a recent population expansion during the late Pleistocene. The phylogeographical structure revealed two obvious lineages that diverged in the late Pleistocene, during which the Silver pomfret populations historically experienced exotic divergence and mixed again with differentiated populations. Currently, Silver pomfret populations have insufficient time to attain migration-drift equilibrium. Population genetic data of the Silver pomfret can provide preliminary genetic knowledge for its fishery management.
Highlights
The Silver pomfret Pampus argenteus (Euphrasen, 1788) is an economically important species that plays a vital role in commercial fisheries (Divya et al 2017)
The genetic diversity in species is a result of the long-term evolution of organisms, and the level of genetic diversity is closely related to the survival and evolutionary potential of the species, of which h and π are two important indicators
High h and low π were detected in six P. argenteus populations, and the results supported the second population rapid growth hypothesis of marine fishes as interpreted by Grant and Bowen (1998)
Summary
The Silver pomfret Pampus argenteus (Euphrasen, 1788) is an economically important species that plays a vital role in commercial fisheries (Divya et al 2017). Euphrasen (1788) provided a general morphological description of P. argenteus based on only one individual, and the original description did not include critical diagnostic characteristics that could be used to identify the species. Because of their high morphological similarity, P. argenteus and Pampus echinogaster (Basilewsky, 1855) are typically mistaken as the same species (Peng et al 2010a, b; Zhao et al 2010, 2011; Wu et al 2012). Li et al (2017) proposed the diagnostic characteristics of P. echinogaster, which were significantly different from those of P. argenteus
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