2026 Howard Ochman: Genetics Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Genetics	92	992	938	488	458	185	39823

Research.com Recognitions

2006 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Howard Ochman is affiliated with The University of Texas at Austin in the United States. Their research spans multiple areas within biochemistry, genetics, and molecular biology, as well as agricultural and biological sciences. The scientist's work touches on various subfields including molecular biology, ecology, genetics, plant science, and infectious diseases.

Ochman's research topics feature a diverse range of studies, such as genomics and phylogenetic studies, bacteriophages and microbial interactions, plant virus research studies, bacterial genetics and biotechnology, viral gastroenteritis research and epidemiology, gut microbiota and health, and probiotics and fermented foods.

Recent papers authored or coauthored by Ochman include:

"Recombination events are concentrated in the spike protein region of Betacoronaviruses" (2020) published in PLoS Genetics
"The Ingenuity of Bacterial Genomes" (2020) published in Annual Review of Microbiology
"Captivity and the co-diversification of great ape microbiomes" (2021) published in Nature Communications
"Organizing the Global Diversity of Microviruses" (2022) published in mBio
"Resurrection of a global, metagenomically defined gokushovirus" (2020) published in eLife

Frequent coauthors of Ochman include Paul C. Kirchberger, Rowan Hart, Angela C. O'Donnell, Zachary A. Martinez, and Marta Cobo-Simón.

Ochman has published extensively in notable venues. These include:

bioRxiv (Cold Spring Harbor Laboratory)
Proceedings of the National Academy of Sciences
SSRN Electronic Journal
PLoS Genetics
Annual Review of Microbiology

The research activity of Howard Ochman has been recognized by the scientific community, as evidenced by the award of Fellow of the American Association for the Advancement of Science (AAAS) in 2006.

Best Publications

Lateral gene transfer and the nature of bacterial innovation

Howard Ochman;Jeffrey G. Lawrence;Eduardo A. Groisman

4709
Citations
Genetic Applications of an Inverse Polymerase Chain Reaction

H Ochman;A S Gerber;D L Hartl

2538
Citations
Sex and virulence in Escherichia coli: an evolutionary perspective

Thierry Wirth;Daniel Falush;Ruiting Lan;Frances M Colles

2295
Citations
Methods of multilocus enzyme electrophoresis for bacterial population genetics and systematics

R. K. Selander;D. A. Caugant;H. Ochman;James M. Musser

1750
Citations
Wrinkles in the rare biosphere: pyrosequencing errors can lead to artificial inflation of diversity estimates

Victor Kunin;Anna Engelbrektson;Howard Ochman;Philip Hugenholtz

1478
Citations
Molecular archaeology of the Escherichia coli genome

Jeffrey G. Lawrence;Howard Ochman

1202
Citations
Amelioration of Bacterial Genomes: Rates of Change and Exchange

Jeffrey G. Lawrence;Howard Ochman

1014
Citations
Deletional bias and the evolution of bacterial genomes

Alex Mira;Howard Ochman;Nancy A. Moran

946
Citations
Evolution in bacteria: Evidence for a universal substitution rate in cellular genomes

Howard Ochman;Allan C. Wilson;Allan C. Wilson

945
Citations
Standard reference strains of Escherichia coli from natural populations.

Howard Ochman;R. K. Selander

941
Citations
Identification of a pathogenicity island required for Salmonella survival in host cells

Howard Ochman;Fernando C. Soncini;Felix Solomon;Eduardo A. Groisman

893
Citations
Pathogenicity islands: bacterial evolution in quantum leaps.

Eduardo A Groisman;Howard Ochman

738
Citations
Genes Lost and Genes Found: Evolution of Bacterial Pathogenesis and Symbiosis

Howard Ochman;Nancy A. Moran

717
Citations
Experimental factors affecting PCR-based estimates of microbial species richness and evenness.

Anna Engelbrektson;Victor Kunin;Kelly C Wrighton;Natasha Zvenigorodsky

675
Citations
Calibrating bacterial evolution

Howard Ochman;Susannah Elwyn;Nancy A. Moran

523
Citations
How Salmonella became a pathogen

Eduardo A. Groisman;Howard Ochman

498
Citations
Illumina-based analysis of microbial community diversity

Patrick H Degnan;Howard Ochman

445
Citations
Production of single-stranded DNA templates by exonuclease digestion following the polymerase chain reaction

Russell G. Higuchi;Howard Ochman

431
Citations
Evolutionary origins of genomic repertoires in bacteria.

Emmanuelle Lerat;Vincent Daubin;Howard Ochman;Nancy A Moran

407
Citations
Pathogenicity Islands: Minireview Bacterial Evolution in Quantum Leaps

Eduardo A. Groisman;Howard Ochman

2
Citations

Frequent Co-Authors

Robert K. Selander University of Rochester

Eduardo A. Groisman Yale University

Nancy A. Moran The University of Texas at Austin

Daniel L. Hartl Harvard University

Beatrice H. Hahn University of Pennsylvania

Jeffrey G. Lawrence University of Pittsburgh

Anne E. Pusey Duke University

Scott R. Santos University at Buffalo, State University of New York

Elizabeth V. Lonsdorf Franklin & Marshall College

S. Dusko Ehrlich University College London

External Links

Personal website of Howard Ochman

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