Koichiro Tamura Google Scholar: h-index, Total Citations, and Citation Map
Koichiro Tamura's h-index is 42 (68 i10-index, 325,618+ total citations across 151+ publications) according to Google Scholar as of October 2026. Koichiro Tamura is affiliated with Director, Professor, Research Center for Genomics and Bioinformatics, Tokyo Metropolitan University.
Koichiro Tamura is a researcher affiliated with Director, Professor, Research Center for Genomics and Bioinformatics, Tokyo Metropolitan University, specializing in evolutionary genetics, evolutionary biology, genomics. Their work has been cited 325,618 times. This profile visualizes their global influence, highlighting strong citation networks in China.
Koichiro Tamura's Citation Metrics
Bibliometric impact based on 151 indexed publications.
- H-Index
- 42
- i10-Index
- 68
- Total Citations
- 325,618
- Citing Countries
- 55
As of October 2026.
Koichiro Tamura has an h-index of 42 and 325,618 total citations across 151 publications, with research cited by institutions in 55 countries.
Download Exports (PNG, CSV, Poster)
Free Viewing Koichiro Tamura's citation map is always free. Pay once to download poster, PNG, and CSV files for offline use or your visa packet.
Global Impact Map
Visualizing the geographic distribution of institutions that have cited your work.
Starting…
Pins will appear here as institutions are resolved — no need to refresh.
MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets
201651,407
Top Citing Countries
Top Citing Institutions
Visa Evidence Package
Views and exports tuned for EB-1A, O-1A, and EB-2 NIW petitions. Sustained acclaim, geographic reach, and independent-citation filtering are the strongest evidence categories immigration adjudicators look for.
Significant Contributions
Auto-detected research lines — a seminal paper and the follow-up work building on it. Review and edit before using in a petition. Each Free PDF opens in a new tab — EB-1A organises this into the structure USCIS applies to Criterion 5 of 8 CFR § 204.5(h)(3)(v); EB-1B re-frames it under § 204.5(i)(3) (outstanding researcher); NIW presents it under prong 2 of Matter of Dhanasar.
19 citing papers could not be classified (no author data) — excluded from the percentages above.
The researcher developed MEGA5, a widely adopted software suite for molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods.
The researcher developed MEGA4, a widely adopted software tool for molecular evolutionary genetics analysis that has become a standard resource in the field.
The researcher developed MEGA6, a widely adopted software tool for molecular evolutionary genetics analysis that has become a standard resource in the field.
Citation trend (last 10 years)Click to expand
Citation Trend (Last 10 Years)
Related Guides
Learn how to use citation maps for your research and visa applications.
About Koichiro Tamura's research
Koichiro Tamura is a researcher in evolutionary genetics, evolutionary biology and genomics at Director, Professor, Research Center for Genomics and Bioinformatics, Tokyo Metropolitan University. Their work has been cited 325,618 times across 151 publications (h-index 42), according to Google Scholar.
Their most-cited work, “MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets” (2016), has accumulated 51,407 citations. Other influential works include “MEGA6: molecular evolutionary genetics analysis version 6.0” (2013) with 50,165 citations and “MEGA5: molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods” (2011) with 49,695 citations.
Citations of Koichiro Tamura's research come primarily from China, United States and Japan, reflecting international research impact across 5+ countries. The interactive citation map above shows the full geographic distribution of the institutions citing this work.
