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Journal Article

Algal Sex Determination and the Evolution of Anisogamy

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Umen, J., & Coelho, S. (2019). Algal Sex Determination and the Evolution of Anisogamy. Annual Review of Microbiology, 73, 267-291. doi:10.1146/annurev-micro-020518-120011.

Cite as: https://hdl.handle.net/21.11116/0000-000A-AA78-0
Algae are photosynthetic eukaryotes whose taxonomic breadth covers a range of life histories, degrees of cellular and developmental complexity, and diverse patterns of sexual reproduction. These patterns include haploid- and diploid-phase sex determination, isogamous mating systems, and dimorphic sexes. Despite the ubiquity of sexual reproduction in algae, their mating-type-determination and sex-determination mechanisms have been investigated in only a limited number of representatives. These include volvocine green algae, where sexual cycles and sex-determining mechanisms have shed light on the transition from mating types to sexes, and brown algae, which are a model for UV sex chromosome evolution in the context of a complex haplodiplontic life cycle. Recent advances in genomics have aided progress in understanding sexual cycles in less-studied taxa including ulvophyte, charophyte, and prasinophyte green algae, as well as in diatoms.