Genetic Diversity and Gene Flow Patterns in Pollicipes mitella in Korea Inferred from Mitochondrial DNA Sequence Analysis

Abstract

Genetic diversity and gene flow patterns in Pollicipes mitella were investigated with a nucleotide sequence analysis of 514 base pairs from the mitochondrial cytochrome c oxidase subunit I gene (COI) in 124 samples collected from six Korean populations. In total, 59 haplotypes were defined by 40 variable nucleotide sites in the COI region. The haplotypes had shallow haplotype genealogy and no geographic associations. All populations had high haplotype diversity (0.909 to 0.979) and low nucleotide diversity (0.0055 to 0.0098). The haplotypes with recently diverged nucleotides were distributed by long-range larvae dispersal among regional populations. The pairwise fixation indices (F ST ) estimated with the exact test and migration rates indicate that substantial gene flow has occurred among populations as a result of sea currents, except between the Uljin (East Sea coast) and other Korean populations. This suggests that significant genetic differentiation and low migration rates have affected the Uljin population.

Geographic variations of the mottled skate, Beringraja pulchra (Liu, 1932) (Rajidae) in the Yellow and East seas based on molecular and morphometric data

“…Although elasmobranch fish are highly mobile when adults (Gaither, Bowen, Rocha, & Briggs, ), thermal barriers (such as the Tsushima Warm Current) may preclude contemporary gene flow between the mottled skate populations in the East Sea and Yellow Sea. Similar examples of species affected by the biogeographic barrier between the East and Yellow Seas have been reported, including Hemigrapsus sanguineus (Hong et al., ), Pollicipes mitella (Yoon, Jung, & Kim, ), Konosirus punctatus (Myoung & Kim, , ), and Ammodytes personatus (Kim, Lee, Lee, Kim, & Kim, ).…”

Genetic diversity and population structure of Capitulum mitella (Linnaeus, 1767) in Fujian (China) revealed by mtDNA COI sequences

“…The results indicate that the C. mitella in Fujian province has a medium to high level of genetic diversity, with a low nucleotide diversity. This is comparable to the findings in other invertebrates, such as Portunus trituberculatus (h=0.582, π=0.00158) (Liu et al, 2009), but higher than those observed in China (h=0.490, π=0.00158), and lower than the Korean population (h=0.909, π=0.00550) (Yoon et al, 2013). The results of this study suggest that the C. mitella in Fujian province experienced a rapid population expansion from an ancestral population with a small effective size.…”

Genetic diversity and population structure of Capitulum mitella (Linnaeus, 1767) in Fujian (China) revealed by mtDNA COI sequences

“…The results indicate that the C. mitella in Fujian province has a medium to high level of genetic diversity, with a low nucleotide diversity. This is comparable to the findings in other invertebrates, such as Portunus trituberculatus (h=0.582, π=0.00158) (Liu et al, 2009), but higher than those observed in China (h=0.490, π=0.00158), and lower than the Korean population (h=0.909, π=0.00550) (Yoon et al, 2013). The results of this study suggest that the C. mitella in Fujian province experienced a rapid population expansion from an ancestral population with a small effective size.…”