Your browser doesn't support javascript.
loading
Fates of Evolutionarily Distinct, Plastid-type Glyceraldehyde 3-phosphate Dehydrogenase Genes in Kareniacean Dinoflagellates.
Kamikawa, Ryoma; Yazaki, Euki; Tahara, Michiru; Sakura, Takaya; Matsuo, Eriko; Nagamune, Kisaburo; Hashimoto, Tetsuo; Inagaki, Yuji.
Afiliación
  • Kamikawa R; Graduate School of Global Environmental Sciences and Graduate School of Human and Environmental Sciences, Kyoto University, Kyoto, Japan.
  • Yazaki E; Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan.
  • Tahara M; Department of Parasitology, National Institute of Infectious Diseases, Tokyo, Japan.
  • Sakura T; Department of Parasitology, National Institute of Infectious Diseases, Tokyo, Japan.
  • Matsuo E; Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan.
  • Nagamune K; Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan.
  • Hashimoto T; Department of Parasitology, National Institute of Infectious Diseases, Tokyo, Japan.
  • Inagaki Y; Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan.
J Eukaryot Microbiol ; 65(5): 669-678, 2018 07.
Article en En | MEDLINE | ID: mdl-29478272
The ancestral kareniacean dinoflagellate has undergone tertiary endosymbiosis, in which the original plastid is replaced by a haptophyte endosymbiont. During this plastid replacement, the endosymbiont genes were most likely flowed into the host dinoflagellate genome (endosymbiotic gene transfer or EGT). Such EGT may have generated the redundancy of functionally homologous genes in the host genome-one has resided in the host genome prior to the haptophyte endosymbiosis, while the other transferred from the endosymbiont genome. However, it remains to be well understood how evolutionarily distinct but functionally homologous genes were dealt in the dinoflagellate genomes bearing haptophyte-derived plastids. To model the gene evolution after EGT in plastid replacement, we here compared the characteristics of the two evolutionally distinct genes encoding plastid-type glyceraldehyde 3-phosphate dehydrogenase (GAPDH) in Karenia brevis and K. mikimotoi bearing haptophyte-derived tertiary plastids: "gapC1h" acquired from the haptophyte endosymbiont and "gapC1p" inherited from the ancestral dinoflagellate. Our experiments consistently and clearly demonstrated that, in the two species examined, the principal plastid-type GAPDH is encoded by gapC1h rather than gapC1p. We here propose an evolutionary scheme resolving the EGT-derived redundancy of genes involved in plastid function and maintenance in the nuclear genomes of dinoflagellates that have undergone plastid replacements. Although K. brevis and K. mikimotoi are closely related to each other, the statuses of the two evolutionarily distinct gapC1 genes in the two Karenia species correspond to different steps in the proposed scheme.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Dinoflagelados / Proteínas Protozoarias / Plastidios / Evolución Molecular / Gliceraldehído-3-Fosfato Deshidrogenasas Tipo de estudio: Prognostic_studies Idioma: En Revista: J Eukaryot Microbiol Asunto de la revista: MICROBIOLOGIA / PARASITOLOGIA Año: 2018 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Dinoflagelados / Proteínas Protozoarias / Plastidios / Evolución Molecular / Gliceraldehído-3-Fosfato Deshidrogenasas Tipo de estudio: Prognostic_studies Idioma: En Revista: J Eukaryot Microbiol Asunto de la revista: MICROBIOLOGIA / PARASITOLOGIA Año: 2018 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos