Mitochondrial D-loop DNA analyses of Norway lobster ( Nephrops norvegicus ) reveals genetic isolation between Atlantic and East Mediterranean populations
Abstract Nephrops norvegicus is a commercially valuable demersal fisheries species. Relatively little is understood about this species’ population dynamics across its distribution with previous mitochondrial and microsatellite studies failing to identify significant population-level differentiation....
| Published in: | Journal of the Marine Biological Association of the United Kingdom |
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| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Cambridge University Press (CUP)
2018
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1017/s0025315418000929 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315418000929 |
| Summary: | Abstract Nephrops norvegicus is a commercially valuable demersal fisheries species. Relatively little is understood about this species’ population dynamics across its distribution with previous mitochondrial and microsatellite studies failing to identify significant population-level differentiation. In this study, sequence variation in the mitochondrial (mtDNA) D-loop was analysed from samples across the distribution range, and compared with COI sequences for this species retrieved from GenBank. Analysis of a 375 bp fragment of the D-loop revealed significant genetic differentiation between samples from the North-east Atlantic and the east Mediterranean ( F ST = 0.107, P < 0.001). Tau (τ), theta (θ 0 and θ 1 ) and Fu's F S values suggest the species spread between 10,500 to 19,000 ybp and subsequently expanded rapidly across the Atlantic. |
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