Abstract
The miiuy croaker (Miichthys miiuy) is an economically important fish species in China. However, information about population structure in this species is limited. In this study, the genetic diversity and population structure of four populations of Miichthys miiuy were investigated using a mitochondrial DNA (mtDNA) cytochrome c oxidase subunit I (COI) segment of 599 bp. A total of 35 polymorphic sites, and 31 haplotypes were defined in 109 individuals. High levels of haplotype diversity (0.731 ± 0.047) and low nucleotide diversity (0.00278 ± 0.0019) were observed in miiuy croaker populations. The results of AMOVA and pairwise fixation index (FST) analysis did not indicate any significant genetic differentiation among populations obtained from four sites (P > 0.05). In addition, no significant genealogical branches or clusters were recognized in the NJ tree. Analysis of neutral evolution and mismatch distribution suggested that the miiuy croaker might have experienced a recent population expansion.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
