Now showing items 1-3 of 3

    • Coleochaete and the origin of sporophytes 

      Haig, David Addison (Botanical Society of America, 2015)
      Premise of the study: Zygotes of Coleochaete are provisioned by the maternal thallus before undergoing 3–5 rounds of division to produce 8–32 zoospores. An understanding of the selective forces favoring postzygotic divisions ...
    • Homologous Versus Antithetic Alternation of Generations and the Origin of Sporophytes 

      Haig, David Addison (Springer-Verlag, 2008)
      The late-nineteenth/early-twentieth century debate over homologous versus antithetic alternation of generations is reviewed. Supporters of both theories, at first, used Coleochaete as a model for the origin of land-plant ...
    • What Do We Know About Charophyte (Streptophyta) Life Cycles? 

      Haig, David Addison (Wiley Blackwell (Blackwell Publishing), 2010)
      The charophyte algae are the closest living relatives of land plants. Their life cycles are usually characterized as haploid with zygotic meiosis. This conclusion, however, is based on a small number of observations and ...