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. 2016 Feb 22;6:21619. doi: 10.1038/srep21619

Figure 6.

Figure 6

Symbiodinium types detected in a subset of Porites astreoides corals from shallow (≤10 m), intermediate (15–20 m) or deep (≥25 m) depths, using denaturing gradient gel electrophoresis (a) versus high-sensitivity quantitative PCR (b). In (b), potential immigrants or individuals with immigrant ancestors were identified in STRUCTURE as having a probability of membership >0.90 to the deep cluster [denoted as ‘shallow (deep origin)’], or as having a probability of membership >0.90 to the shallow cluster [denoted as ‘deep (shallow origin)’]. No shallow individuals of deep-water origin were found in the U.S. Virgin Islands (denoted by nd) and no samples from Bermuda where included due to absence of patterns of depth zonation at this location. Numbers in bars indicate number of colonies assessed. USVI = U.S. Virgin Islands.