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Ichiro Nishii
Researcher at Nara Women's University
Publications - 18
Citations - 1059
Ichiro Nishii is an academic researcher from Nara Women's University. The author has contributed to research in topics: Volvox carteri & Volvox. The author has an hindex of 14, co-authored 18 publications receiving 939 citations. Previous affiliations of Ichiro Nishii include National University of Singapore & Temasek Life Sciences Laboratory.
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Journal ArticleDOI
Genomic Analysis of Organismal Complexity in the Multicellular Green Alga Volvox carteri
Simon E. Prochnik,James G. Umen,Aurora M. Nedelcu,Armin Hallmann,Stephen M. Miller,Ichiro Nishii,Patrick J. Ferris,Alan Kuo,Therese Mitros,Lillian K. Fritz-Laylin,Uffe Hellsten,Jarrod Chapman,Oleg Simakov,Stefan A. Rensing,Astrid Terry,Jasmyn Pangilinan,Vladimir V. Kapitonov,Jerzy Jurka,Asaf Salamov,Harris Shapiro,Jeremy Schmutz,Jane Grimwood,Erika Lindquist,Susan Lucas,Igor V. Grigoriev,Rüdiger Schmitt,David L. Kirk,Daniel S. Rokhsar,Daniel S. Rokhsar +28 more
TL;DR: In this paper, the authors sequenced the 138-mega-base pair genome of V. carteri and compared its approximately 14,500 predicted proteins to those of its unicellular relative Chlamydomonas reinhardtii.
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Evolution of an Expanded Sex-Determining Locus in Volvox
Patrick J. Ferris,Bradley J. S. C. Olson,Peter L. De Hoff,Stephen Douglass,David Casero,Simon E. Prochnik,Sa Geng,Rhitu Rai,Rhitu Rai,Jane Grimwood,Jeremy Schmutz,Ichiro Nishii,Takashi Hamaji,Hisayoshi Nozaki,Matteo Pellegrini,James G. Umen +15 more
TL;DR: The mating locus (MT) of the multicellular green alga Volvox carteri specifies the production of eggs and sperm and has undergone a remarkable expansion and divergence relative to MT from Chlamydomonas reinhardtii, which is a closely related unicellular species that has equal-sized gametes as mentioned in this paper.
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The VARL Gene Family and the Evolutionary Origins of the Master Cell-Type Regulatory Gene, regA , in Volvox carteri
Leonard Duncan,Leonard Duncan,Ichiro Nishii,Alexandra Harryman,Stephanie Buckley,Alicia Howard,Nicholas R. Friedman,Stephen M. Miller +7 more
TL;DR: The phylogenetic analysis suggests that a proto-regA gene was present in a common unicellular ancestor of V. carteri and C. reinhardtii and that this gene was lost in the latter lineage.
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Identification of the Minus-Dominance Gene Ortholog in the Mating-Type Locus of Gonium Pectorale
Takashi Hamaji,Patrick J. Ferris,Annette W. Coleman,Sabine Waffenschmidt,Fumio Takahashi,Ichiro Nishii,Hisayoshi Nozaki +6 more
TL;DR: This study isolated from G. pectorale the ortholog of the C. reinhardtii mating-type-determining minus-dominance (CrMID) gene, which is localized only in the MT− locus, and revealed that GpMID expression increased during nitrogen starvation, suggesting that the gene content of the volvocalean MT loci is not static over time.
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Controlled Enlargement of the Glycoprotein Vesicle Surrounding a Volvox Embryo Requires the InvB Nucleotide-Sugar Transporter and Is Required for Normal Morphogenesis
Noriko Ueki,Ichiro Nishii +1 more
TL;DR: The resulting embryos inverted normally, demonstrating that controlled enlargement of the GV, by a process in which requires the InvB nucleotide-sugar transporter, is essential to provide the embryo sufficient space to complete inversion.