Genetic structure of wild brown sole inferred from mitochondrial DNA analysis

Abstract

The population structure of brown sole was examined in a total of 308 samples collected from three geographical groups: one locality (Gangneung) on the east side of the Korean Peninsula, two localities (Erimo and Tomakomai) on the southeastern side and four localities (Onishika, Teshio, Tomamae and Yoichi) on the northwestern side of Hokkaido Island, Japan, by using sequences of 484 bp from the 5? end of the control region of mtDNA. We detected 225 haplotypes, but 183 of them were unique to an individual. A total of 116 nucleotide sites were variable. Haplotype diversity (h) was very high, ranging from 0.989 to 1.000, and nucleotide diversity (p) was detected between 0.015 and 0.022. Genetic distances (F ST ) within populations, among populations and among geographical groups were low (0.0002 to 0.0014). No significant difference was detected by the AMOVA test (PB0.05). Pairwise F ST values between sampling localities were also low and not significant. Genetic differentiation was not detected among sampling localities.

Population genetic structure and genetic variability of the marbled solePleuronectes yokohamaeon the coast of Gyeongsangnam-do, Korea

“…Therefore, marbled soles may have settled in the Southern Sea of Korea after its formation and we suggest that sufficient time may not have elapsed for population division to occur. The possibility that no population division has occurred cannot be ruled out based on high levels of genetic diversity (Kim et al 2010c). Saeki and Kikuchi (2000) considered that the differences between the spawning period of the marbled soles in the southern Oshika peninsula and northern Oshika peninsula, Miyazaki Prefecture, were caused more by the environment supporting their growth and development than by the existence of genetically different populations.…”

Genetic diversity of the Asian shore crab,Hemigrapsus sanguineus, in Korea and Japan inferred from mitochondrial cytochromecoxidase subunit I gene

“…The estimated pairwise F ST values calculated with an exact test and the determined migration rates indicate that substantial gene flow has occurred among these populations of H. sanguineus, except between the BUA and JPA populations, which showed some genetic differentiation and low migration rates. Generally, marine organisms with passively dispersed planktonic larvae have limited population substructures, and their dispersal may be strongly affected by sea currents (Lessios et al 2003;Kim et al 2010). The Tsushima Warm Current (TWC) branches off the Kuroshio Current, with part of the TWC running into the Yellow Sea and the main part entering the East Sea along the Korean Peninsula (Senjyu 1999;Ichikawa and Beardsley 2002) (Figure 1).…”

Feeding ecology of three tonguefishes, genus Cynoglossus (Cynoglossidae) in the Seto Inland Sea, Japan

“…However, the mechanisms of this are still unclear and further studies are needed to evaluate the effects of spatial and temporal partitioning in this area. Also, studies of geographical differences in their foraging ecology need to understand their population structure because flatfish species have a highly polymorphic population structure, large population size and wide distribution (Nielsen et al 2009;Kim et al 2010).…”