Accumulating evidence indicates that the haptophyte species Phaeocystis globosa, which plays an important role in climate control and may cause harmful algal blooms (HABs), displays a rich genetic diversity that may be responsible for differences in colonial sizes, different toxicity during blooms, and differential optimum growth temperature. In this project, we demonstrated that COX1 can be used as an effective molecular marker for its low intra-genome variations and high resolution in differentiating different P. globosa strains. Analyzing 57 P. globosa strains and seven field samples revealed high P. globosa genetic diversity with at least seven distinct clades. This study not only demonstrated for the first time that the common molecular marker COX1 can be used for differentiating P. globosa strains with high-resolution, and for tracking dynamics of different P. globosa strains during bloom development, but also revealed that P. globosa had high genetic diversity in the field.

越来越多的证据表明，在气候控制中起重要作用并可能导致有害藻华 (HAB)的触生植物种 Phaeocystis globosa表现出丰富的遗传多样性，这可能是造成群落大小差异、藻华期间毒性不同和差异化的原因。最佳生长温度。在这个项目中，我们证明了COX1可以用作有效的分子标记，因为它在区分不同的球状假单胞菌菌株时具有较低的基因组内变异和高分辨率。对 57 个P. globosa菌株和 7 个野外样本进行分析，发现高P. globosa具有至少七个不同进化枝的遗传多样性。该研究不仅首次证明了共同分子标记COX1可用于高分辨率区分球状假单胞菌菌株，以及跟踪不同球状假单胞菌在开花发育过程中的动态变化，而且揭示了球状假单胞菌在该领域具有很高的遗传多样性。