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Fig. 3 | BMC Genomics

Fig. 3

From: Swept away: ocean currents and seascape features influence genetic structure across the 18,000 Km Indo-Pacific distribution of a marine invertebrate, the black-lip pearl oyster Pinctada margaritifera

Fig. 3

Visualisation of population structure among 580 P. margaritifera individuals sampled. Fine-scale population networks constructed using the Netview P v.0.4.2.5 pipeline and selectively-neutral loci are shown in (a) organic; k-NN = 40 and (b) circular; k-NN = 10 topologies, with each dot representing a single individual. Oysters sampled from the Pacific Ocean had sufficiently low neutral F st levels to permit testing for outlier loci, and Neighbour-Joining trees generated based on 1-psa distance matrices for these individuals are shown in (c) and (d). The tree displayed in (c) was drawn using 89 putatively directional outlier loci detected by both Bayescan 2.1 and LOSITAN at an FDR = 0.05, while (d) was generated using 37 also jointly-identified putatively balancing loci, at an FDR = 0.05. e Shows the arrangement of population structure in these same individuals, but with all loci (9,624 SNPs). The scale bars for (c), (d) and (e) indicate 1-psa genetic distance

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BMC Genomics

ISSN: 1471-2164

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