Expression of actin genes in the arrow worm Paraspadella gotoi (Chaetognatha)
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概要
- 論文の詳細を見る
Arrow worms (the phylum Chaetognatha), one of the major marine planktonic animals, exhibit features characteristic to both deuterostomes and protostomes, and their ancestry therefore remains unknown. As the first step to elucidate the molecular bases of arrow worm phylogeny, physiology and embryology, we isolated cDNA clones for three different actin genes (PgAct1, PgAct2 and PgAct3) from the benthic species Paraspadella gotoi, and examined their expression patterns in adults and juveniles. The amino acid sequences of the three actins resembled each other, with identities ranging from 86% to 92%. However, the patterns of the spatial expression of the genes were independent. The PgAct1 gene might encode a cytoplasmic actin and was expressed in oogenic cells, spermatogenic calls, and cells in the ventral ganglion. The PgAct2 and PgAct3 genes encoded actins of divergent types. The former was expressed in well-developed muscle of the head (gnathic) region and trunk muscle cells, whereas the latter was expressed in muscle of the trunk and tail regions and oogenic cells. These results suggest that, similarly to other metazoans, the chaetognath contains multiple forms of actins, which are expressed in various manners in the adult and juvenile arrow worm.
- 社団法人日本動物学会の論文
著者
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Goto Taichiro
Department Of General Thoracic Surgery National Hospital Organization Tokyo Medical Center
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Satoh Noriyuki
Department of Biology, Niigata University
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Goto Taichiro
Department Of Biology Faculty Of Education
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Yasuda Etsuko
Department of Biology, Faculty of Educaton, Mie University
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Makabe Kazuhiro
Department of Zoology, Graduate School of Science, Kyoto University
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Yasuda Etsuko
Department Of Biology Faculty Of Educaton Mie University : Department Of Zoology Graduate School Of
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Satoh Noriyuki
Department Of Biology Niigata University
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Makabe K
Kyoto Univ. Kyoto Jpn
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Makabe Kazuhiro
Department Of Zoology Graduate School Of Science Kyoto University
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Goto T
Mie Univ. Jpn
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