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Genetic diversity is what selection acts on, thus shaping the adaptive potential of populations. Here scientists studied micro-evolutionary patterns of the key planktonic diatom Pseudo-nitzschia multistriata at a long-term sampling site over 2 consecutive years by genotyping isolates with 22 microsatellite markers. They show that both sex and vegetative growth interplay in shaping intraspecific diversity. [Source: The ISME Journal]
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