S
Sohta A. Ishikawa
Researcher at University of Tsukuba
Publications - 13
Citations - 444
Sohta A. Ishikawa is an academic researcher from University of Tsukuba. The author has contributed to research in topics: Gene & Phylogenetic tree. The author has an hindex of 12, co-authored 13 publications receiving 347 citations. Previous affiliations of Sohta A. Ishikawa include Pasteur Institute & University of Tokyo.
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Journal ArticleDOI
A Fast Likelihood Method to Reconstruct and Visualize Ancestral Scenarios
TL;DR: PastML was applied to the phylogeography of Dengue serotype 2 (DENV2), and the evolution of drug resistances in a large HIV data set, and showed the uncertainty of the human-sylvatic DENV2 geographic origin.
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Palpitomonas bilix represents a basal cryptist lineage: insight into the character evolution in Cryptista.
Akinori Yabuki,Ryoma Kamikawa,Sohta A. Ishikawa,Martin Kolisko,Eunsoo Kim,Akifumi S. Tanabe,Keitaro Kume,Ken-ichiro Ishida,Yuji Inagki +8 more
TL;DR: The taxonomic assignment of P. bilix, and character evolution in Cryptista is discussed, which was found to be basal to a clade of cryptophytes, goniomonads and kathablepharids collectively known as Cryptista, which is proposed to be a part of the larger taxonomic assemblage Hacrobia.
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Gene content evolution in Discobid mitochondria deduced from the phylogenetic position and complete mitochondrial genome of Tsukubamonas globosa
Ryoma Kamikawa,Martin Kolisko,Martin Kolisko,Yuki Nishimura,Akinori Yabuki,Matthew Brown,Sohta A. Ishikawa,Ken-ichiro Ishida,Andrew J. Roger,Tetsuo Hashimoto,Yuji Inagaki +10 more
TL;DR: By mapping the gene repertoires of discobid mt genomes onto the well-resolved Discoba tree, a "phylogenomic" approach is used to resolve the relationship between T. globosa, heteroloboseans, euglenozoans, and jakobids.
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Proposal of a Twin Aarginine Translocator System-Mediated Constraint against Loss of ATP Synthase Genes from Nonphotosynthetic Plastid Genomes
Ryoma Kamikawa,Goro Tanifuji,Sohta A. Ishikawa,Ken-Ichiro Ishii,Yusei Matsuno,Naoko T. Onodera,Ken-ichiro Ishida,Tetsuo Hashimoto,Hideaki Miyashita,Shigeki Mayama,Yuji Inagaki +10 more
TL;DR: The complete plastid genome and transcriptome data of a nonphotosynthetic diatom is reported and it is proposed that its ATP synthase genes may function in ATP hydrolysis to maintain a proton gradient between thylakoids and stroma.
Journal ArticleDOI
Ungulate malaria parasites
Thomas J. Templeton,Masahito Asada,Montakan Jiratanh,Sohta A. Ishikawa,Sonthaya Tiawsirisup,Thillaiampalam Sivakumar,Boniface Namangala,Mika Takeda,Kingdao Mohkaew,Supawan Ngamjituea,Noboru Inoue,Chihiro Sugimoto,Yuji Inagaki,Yasuhiko Suzuki,Naoaki Yokoyama,Morakot Kaewthamasorn,Osamu Kaneko +16 more
TL;DR: It is likely that host switching of Plasmodium from birds to mammals occurred multiple times, with a switch to ungulates independently from other mammalian Plas modium.