Genetic variation and evolutionary demography of Fenneropenaeus chinensis populations, as revealed by the analysis of mitochondrial control region sequences

Abstract

Genetic variation and evolutionary demography of the shrimp Fenneropenaeus chinensis were investigated using sequence data of the complete mitochondrial control region (CR). Fragments of 993 bp of the CR were sequenced for 93 individuals from five localities over most of the species' range in the Yellow Sea and the Bohai Sea. There were 84 variable sites defining 68 haplotypes. Haplotype diversity levels were very high (0.95 ± 0.03-0.99 ± 0.02) in F. chinensis populations, whereas those of nucleotide diversity were moderate to low (0.66 ± 0.36%-0.84 ± 0.46%). Analysis of molecular variance and conventional population statistics (FST ) revealed no significant genetic structure throughout the range of F. chinensis. Mismatch distribution, estimates of population parameters and neutrality tests revealed that the significant fluctuations and shallow coalescence of mtDNA genealogies observed were coincident with estimated demographic parameters and neutrality tests, in implying important past-population size fluctuations or range expansion. Isolation with Migration (IM) coalescence results suggest that F. chinensis, distributed along the coasts of northern China and the Korean Peninsula (about 1000 km apart), diverged recently, the estimated time-split being 12,800 (7,400-18,600) years ago.

Mitochondrial DNA variation and population genetic structure of white shrimpFenneropenaeus indicusalong the coastal belt of Sri Lanka

“…The nucleotide diversity values (π) reported in this study are in the same range as those derived from mtDNA variation of tiger prawn (P. monodon) (Klinbunga et al 1999;Benzie et al 2002) (Kong et al 2010) populations; although Cui et al (2007), in contrast, reported relatively low haplotype diversity value (0.24) in P. chinensis. The nucleotide diversity observed in this study is interestingly close to the highest level of π observed for Penaeus monodon in Indonesia, which could be explained by migrations from the oceans to the east and west of the studied region (Benzie et al 2002).…”

Genetic population structure and recruitment patterns of three sympatric shallow-water penaeid prawns in Ungwana Bay, Kenya, with implication for fisheries management

“…(h ¼ 0.969-1.000; You et al 2008), Farfantepenaeus duorarum from the south-eastern United States (h ¼ 1.000; McMillen-Jackson and Bert 2004) and Fenneropenaeus chinensis from seas of northern China (h ¼ 0.9500-0.9900;Kong et al 2010). The microsatellite analysis confirmed the high genetic diversity of P. monodon, on the basis of heterozygosity (He ¼ 0.886-0.907) and allelic richness (AR ¼ 14.333-24.833).…”

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“…A pattern of genetic diversity in the population of V. litterata living along the Thailand coast presented high haplotype diversity but a low nucleotide diversity. This pattern was reported as a typical character of genetic variations of marine species (Chu et al 2012;Kong et al 2010). Regarding the population genetic theory, this pattern can be generated by an accumulation of new mutations in a rapidly expanding population (Watterson 1984).…”