Variability of Autogamy-Maturation Pattern in Genetically Identical Populations of Paramecium tetraurelia : Cell Biology
スポンサーリンク
概要
- 論文の詳細を見る
Autogamy in Paramecium tetraurellia is a form of sexual reproduction in a single cell that results in homozygosity in every genetic locus. Autogamy becomes inducible by natural starvation several fissions after the previous autogamy, and percent autogamy increases gradually with clonal age to reach 100%. We here report the degree of variability of the autogamy-maturation pattern, and how it is inherited through auto gamous generations. We assessed the autogamy-maturation pattern by monitoring percent autogamy at the ages of 9, 18 and 27 fissions in the wild-type stock 51. To determine how the autogamy-maturation pattern is inherited, clones that showed the lowest and the highest percent autogamy at age 18 in a given autogamous generation (Gn) were examined for their percent autogamy in the next autogamous generation (Gn+1). This procedure was repeated through successive autogamous generations. We found that percent autogamy at ages 9 and 27 was rather stable (low and high, respectively), while it was extremely variable at age 18 ranging from 3% to 100%. We also found that percent autogamyatage 18 in the progeny clones was variable irrespective of percent autogamyatage 18 in the parental clones ; there was no regular rule such as producing progeny with higher (or lower) percent autogamy from parents with lower (or higher) percent autogamy.
- 社団法人日本動物学会の論文
- 2002-11-25
著者
-
Takagi Y
Department Of Biology Faculty Of Science Nara Women's University
-
Takagi Yoshiomi
Department Of Biological Science Nara Women's University
-
Harumoto Terue
Department Of Biological Science And Environment Graduate School Of Human Culture Nara Women's
-
Fujisawa H
The Division Of Human Environmental Sciences Graduate School Of Human Culture
-
Komori R
Nara Women's Univ. Nara
-
Komori Rie
The Division of Human Environmental Sciences, Graduate School of Human Culture
-
Fujisawa Hiromi
The Division of Human Environmental Sciences, Graduate School of Human Culture
関連論文
- Immunolocalization of gastrolith matrix protein (GAMP) in the gastroliths and exoskeleton of crayfish, Procambarus clarkii
- Cloning and expression of a cDNA encoding an insoluble matrix protein in the gastroliths of a crayfish, Procambarus clarkii
- CRUSTOCALCIN : A STUDY ON POTENTIAL FUNCTION OF A SKELETAL CA^-BINDING PROTEIN OF KURUMA PRAWN PENAEUS JAPONICUS(Biochemistry)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- Localization of a Ca^ binding protein DD4 in the calcified exoskeleton of kuruma prawn Penaeus japonicus.(Biochemistry)(Proceeding of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- Ca^ binding capacity of DD4 protein which is expressed during calcification of the exoskeleton of the kuruma-prawn Penaeus japonicus(Biochemistry)Proceedings of the Seventy-First Annual Meeting of the Zoological Society of Japan
- Changes in UV Sensitivity with Cell Cycle, Clonal Age, and Cultural Age in Paramecium tetraurelia
- ゾウリムシのクローン発生における性形質の漸次的発現〔英文〕
- Partial Autolysis of Macronuclear Fragments Revealed by Rapid DNA Degradation in Exconjugants of Paramecium multimicronucleatum(Cell Biology)
- DEVELOPMENTALLY AND ENVIRONMENTALLY REGULATED EXPRESSION OF MATING PHEROMONE IN THE CILIATE BLEPHARISMA JAPONICUM(Cell Biology and Morphology,Abstracts of papers presented at the 75^ Annual Meeting of the Zoological Society of Japan)
- Ectosymbiotic Role of Food Bacteria for Paramecium : Bacterial Detoxification of Paramecia-Killing Toxin Contained in Wheat Grass Powder(Cell Biology)