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Genomes of “star algae” shed light on origin of plants - EurekAlert
Land plants cover the surface of our planet and often tower over us. They form complex bodies with multiple organs that consist of a broad range of cell types. Developing this morphological complexity is underpinned by intricate networks of genes, whose coordinated action shapes plant bodies through various molecular mechanisms. All of these magnificent forms burst forth from a one-off evolutionary event: when plants conquered Earth’s surface, known as plant terrestrialization. Among those algae most closely related to land plants, diverse body types are found – ranging from single-celled algae to more complex cell filaments. From this group of relatives, an international group of researchers led by the Universities of Göttingen and Nebraska–Lincoln has now generated the first genome data of such complex specimens, on four filamentous “star algae” of the genus <em>Zygnema</em>. Their results were published in Nature Genetics.
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