Reticulate evolution of corals

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概要

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• Many species of reef-building corals spawn gametes synchronously in the reef, and hybridization has been supposed in such mass-spawning events. We conducted crossing experiments and molecular phylogeny with a number of mass-spawning species in the major coral genus Acropora. Interspecific fertilization at high rates was observed in several combinations of particular species despite very different morphologies. The hybrid larvae developed normally, and contained two allelic sequences of a marker gene inherited from the parents in the Mendelian manner. Molecular phylogenetic analyses provided strong evidence that a DNA polymorphism is shared by the hybridizing species. These reproductive and genetic characteristics are consistent with a species complex under the separation or fusion processes predicted in reticulate evolution. Synchronous mass spawning may facilitate the unique evolutionary history in corals.

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著者

• Hatta Masayuki

  Department Of Biology Ochanomizu University

• Hatta Masayuki

  Marine And Coastal Biology Center Ochanomizu University

• Fukami Hironobu

  Smithsonian Tropical Research Institute

関連論文

• COMBINATION OF HYDRAPEPTIDE PROJECT AND HYDRAEST PROJECT FOR SYSTEMATIC IDENTIFICATION OF NOVEL NEUROPEPTIDES(Physiology)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
• Identification of a Homolog of Actin-Binding Protein, ABP-280, Localized at Epithelial Cell-Cell Boundaries in Hydra(Cell Biology)
• Structure-Activity Relation of LWamide Peptides Synthesized with a Multipeptide Synthesizer
• REGULATION OF METAMORPHOSIS OF THE CORAL ACROPORA IN RESPONSE TO ENVIRONMENTAL CUES(Developmental Biology,Abstracts of papers presented at the 76^ Annual Meeting of the Zoological Society of Japan)
• APPEARANCE OF PREDATOR PLANULAE(Behavior Biology and Ecology,Abstracts of papers presented at the 75^ Annual Meeting of the Zoological Society of Japan)
• Reticulate evolution of corals
• EARLY DEVELOPMENT OF THE REEF-BUILDING CORAL ACROPORA(Developmental Biology,Abstracts of papers presented at the 76^ Annual Meeting of the Zoological Society of Japan)
• THE CORAL ACROPORA CAN ACQUIRE SYMBIOTIC ALGAE FROM THE GIANT CLAM(Behavior Biology and Ecology,Abstracts of papers presented at the 75^ Annual Meeting of the Zoological Society of Japan)

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