Comparison between DNA concentrations obtained by different DNA extraction procedures from free-living and cultured nematodes.

<p>Upper panel: comparison of DNA concentrations obtained using NaOH and QIAGEN kit extraction procedures from cultured nematodes (i.e. <i>Plectus</i> sp., <i>Diplolaimelloides oschei</i> and <i>Pellioditis marina</i>). Lower panel: comparison of DNA concentrations obtained using NaOH procedure, QIAGEN and MoBio kits from coastal and deep-sea nematodes. Mean (n = 5) and standard deviations are shown. The MoBio kit has not been used on cultured nematodes since they were not extracted from the sediment.