World's Best Scientists 2026 revealed!

D-Index & Metrics

Genetics

D-Index
51
Citations
12708
World Ranking
3850
National Ranking
1663

Donald A. Morrison publication distribution in Genetics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Genetics in 2026. The highlighted bar marks where Donald A. Morrison sits on this spectrum.

45–54 publications: 6 scientists 55–64 publications: 10 scientists 65–74 publications: 35 scientists 75–84 publications: 84 scientists 85–94 publications: 102 scientists 95–104 publications: 151 scientists 105–114 publications: 175 scientists 115–124 publications: 203 scientists 125–134 publications: 217 scientists 135–144 publications: 205 scientists 145–154 publications: 193 scientists 155–164 publications: 188 scientists 165–174 publications: 170 scientists 175–184 publications: 178 scientists 185–194 publications: 164 scientists 195–204 publications: 173 scientists 205–214 publications: 159 scientists 215–224 publications: 134 scientists 225–234 publications: 143 scientists 235–244 publications: 105 scientists 245–254 publications: 114 scientists 255–264 publications: 92 scientists 265–274 publications: 88 scientists 275–284 publications: 87 scientists 285–294 publications: 80 scientists 295–304 publications: 62 scientists 305–314 publications: 75 scientists 315–324 publications: 67 scientists 325–334 publications: 60 scientists 335–344 publications: 52 scientists 345–354 publications: 40 scientists 355–364 publications: 48 scientists 365–374 publications: 47 scientists 375–384 publications: 46 scientists 385–394 publications: 31 scientists 395–404 publications: 27 scientists 405–414 publications: 40 scientists 415–424 publications: 30 scientists 425–434 publications: 43 scientists 435–444 publications: 29 scientists 445–454 publications: 14 scientists 455–464 publications: 28 scientists 465–474 publications: 21 scientists 475–484 publications: 21 scientists 485–494 publications: 22 scientists 495–504 publications: 17 scientists 505–514 publications: 12 scientists 515–524 publications: 11 scientists 525–534 publications: 8 scientists 535–544 publications: 8 scientists 545–554 publications: 14 scientists 555–564 publications: 4 scientists 565–574 publications: 11 scientists 575–584 publications: 5 scientists 585–594 publications: 11 scientists 595–604 publications: 12 scientists 605–614 publications: 7 scientists 615–624 publications: 6 scientists 625–634 publications: 10 scientists 635–644 publications: 9 scientists 645–654 publications: 10 scientists 655–664 publications: 6 scientists 665–674 publications: 6 scientists 675–684 publications: 6 scientists 685–694 publications: 4 scientists 695–702 publications: 6 scientists 703+ publications: 100 scientists
45 publications 703+

This scientist: 96 publications — 6th percentile

6% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 703 publications or more.

Donald A. Morrison D-index placement in Genetics in 2026

The chart shows the D-index (discipline H-index) distribution of Genetics scientists ranked by Research.com in 2026. The highlighted bar marks where Donald A. Morrison sits on this spectrum.

40–41 D-Index: 24 scientists 42–43 D-Index: 52 scientists 44–45 D-Index: 84 scientists 46–47 D-Index: 112 scientists 48–49 D-Index: 118 scientists 50–51 D-Index: 141 scientists 52–53 D-Index: 143 scientists 54–55 D-Index: 145 scientists 56–57 D-Index: 179 scientists 58–59 D-Index: 162 scientists 60–61 D-Index: 175 scientists 62–63 D-Index: 191 scientists 64–65 D-Index: 172 scientists 66–67 D-Index: 184 scientists 68–69 D-Index: 164 scientists 70–71 D-Index: 158 scientists 72–73 D-Index: 150 scientists 74–75 D-Index: 136 scientists 76–77 D-Index: 127 scientists 78–79 D-Index: 127 scientists 80–81 D-Index: 111 scientists 82–83 D-Index: 110 scientists 84–85 D-Index: 110 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 102 scientists 90–91 D-Index: 66 scientists 92–93 D-Index: 72 scientists 94–95 D-Index: 70 scientists 96–97 D-Index: 54 scientists 98–99 D-Index: 60 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 55 scientists 104–105 D-Index: 45 scientists 106–107 D-Index: 42 scientists 108–109 D-Index: 28 scientists 110–111 D-Index: 39 scientists 112–113 D-Index: 25 scientists 114–115 D-Index: 31 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 34 scientists 120–121 D-Index: 29 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 18 scientists 126–127 D-Index: 27 scientists 128–129 D-Index: 22 scientists 130–131 D-Index: 16 scientists 132–133 D-Index: 11 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 12 scientists 138–139 D-Index: 21 scientists 140–141 D-Index: 4 scientists 142–143 D-Index: 9 scientists 144–145 D-Index: 14 scientists 146–147 D-Index: 6 scientists 148–149 D-Index: 10 scientists 150–151 D-Index: 7 scientists 152–153 D-Index: 9 scientists 154–155 D-Index: 8 scientists 156–157 D-Index: 8 scientists 158–159 D-Index: 9 scientists 160+ D-Index: 96 scientists
40 D-Index 160+

This scientist: 51 D-Index — 12th percentile

12% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 160 D-Index or more.

Overview

Donald A. Morrison is affiliated with the University of Illinois at Chicago in the United States. Their research primarily spans fields related to Biochemistry, Genetics and Molecular Biology, with a total of 11 publications. Additionally, their work touches on Medicine through 7 published papers.

Their subfields of study focus on Molecular Biology, Epidemiology, Molecular Medicine, Microbiology, and Infectious Diseases. The breadth of their research is reflected in diverse main topics including Pneumonia and Respiratory Infections, Antibiotic Resistance in Bacteria, RNA and protein synthesis mechanisms, Bacterial Infections and Vaccines, Antimicrobial Resistance in Staphylococcus, Pharmaceutical and Antibiotic Environmental Impacts, and Antibiotics Pharmacokinetics and Efficacy.

Morrison has authored several recent papers, which include:

  • A global multinational survey of cefotaxime-resistant coliforms in urban wastewater treatment plants, 2020, Environment International
  • Competence pili in Streptococcus pneumoniae are highly dynamic structures that retract to promote DNA uptake, 2021, Molecular Microbiology
  • Identification and Characterization of Negative Regulators of Rgg1518 Quorum Sensing in Streptococcus pneumoniae, 2023, Journal of Bacteriology
  • Type IV competence pili in Streptococcus pneumoniae are highly dynamic structures that retract to promote DNA uptake, 2021, bioRxiv (Cold Spring Harbor Laboratory)
  • Markerless Genome Editing in Competent Streptococci, 2022, Methods in molecular biology

Frequent co-authors collaborating with Morrison include Trinh Lam, Courtney K. Ellison, David Eddington, Ankur B. Dalia, and R Marano. Their publications are commonly found in venues such as bioRxiv (Cold Spring Harbor Laboratory), Environment International, Molecular Microbiology, Journal of Bacteriology, and Methods in molecular biology.

Best Publications

  • Complete Genome Sequence of a Virulent Isolate of Streptococcus pneumoniae

    H. Tettelin;K. E. Nelson;I. T. Paulsen;Jonathan A Eisen

  • An unmodified heptadecapeptide pheromone induces competence for genetic transformation in Streptococcus pneumoniae

    Leiv Sigve Havarstein;Gowri Coomaraswamy;Donald A. Morrison

  • A highly conserved repeated DNA element located in the chromosome of Streptococcus pneumoniae.

    Bernard Martin;Odile Humbert;Miguel Camara;Eric Guenzi

  • An rpsL Cassette, Janus, for Gene Replacement through Negative Selection in Streptococcus pneumoniae

    C. K. Sung;H. Li;J. P. Claverys;D. A. Morrison

  • Regulation of competence for genetic transformation in Streptococcus pneumoniae by an auto-induced peptide pheromone and a two-component regulatory system.

    E. V. Pestova;L. S. Håvarstein;D. A. Morrison

  • Identification of competence pheromone responsive genes in Streptococcus pneumoniae by use of DNA microarrays

    Scott N. Peterson;Chang Kyoo Sung;Robin Cline;Bhushan V. Desai

  • Identification of a new regulator in Streptococcus pneumoniae linking quorum sensing to competence for genetic transformation.

    Myeong S. Lee;Donald A. Morrison

  • PCR ligation mutagenesis in transformable streptococci: application and efficiency

    Peter C.Y Lau;Chang Kyoo Sung;Janet H Lee;Donald A Morrison

  • IDENTIFICATION OF THE STREPTOCOCCAL COMPETENCE-PHEROMONE RECEPTOR

    Leiv Sigve Håvarstein;Peter Gaustad;Ingolf F. Nes;Donald A. Morrison

  • A functional genomic analysis of type 3 Streptococcus pneumoniae virulence.

    Gee W. Lau;Sauli Haataja;Michael Lonetto;Sarah E. Kensit

  • Competence for genetic transformation in encapsulated strains of Streptococcus pneumoniae: two allelic variants of the peptide pheromone.

    Gianni Pozzi;L. Masala;Francesco Iannelli;R. Manganelli

  • A novel double-tryptophan peptide pheromone controls competence in Streptococcus spp. via an Rgg regulator

    Lauren Mashburn-Warren;Donald A. Morrison;Michael J. Federle

  • Transformation in Escherichia coli: cryogenic preservation of competent cells.

    D A Morrison

  • Genetic transformation in Streptococcus pneumoniae: nucleotide sequence analysis shows comA, a gene required for competence induction, to be a member of the bacterial ATP-dependent transport protein family.

    F M Hui;D A Morrison

  • Construction and evaluation of new drug-resistance cassettes for gene disruption mutagenesis in Streptococcus pneumoniae, using an ami test platform

    Jean Pierre Claverys;Agnes Dintilhac;Ekaterina V. Pestova;Bernard Martin

  • Gene Expression Analysis of the Streptococcus pneumoniae Competence Regulons by Use of DNA Microarrays

    Scott Peterson;Robin T. Cline;Hervé Tettelin;Vasily Sharov

  • Isolation of transformation-deficient Streptococcus pneumoniae mutants defective in control of competence, using insertion-duplication mutagenesis with the erythromycin resistance determinant of pAM beta 1.

    D. A. Morrison;M.-C. Trombe;M. K. Hayden;G. A. Waszak

  • Competence for genetic transformation in Streptococcus pneumoniae: organization of a regulatory locus with homology to two lactococcin A secretion genes

    Francis M. Hui;Lixin Zhou;Donald A. Morrison

  • Transient Association of an Alternative Sigma Factor, ComX, with RNA Polymerase during the Period of Competence for Genetic Transformation in Streptococcus pneumoniae

    Ping Luo;Donald A. Morrison

  • Construction and properties of a new insertion vector, pJDC9, that is protected by transcriptional terminators and useful for cloning of DNA from Streptococcus pneumoniae.

    Jau Der Chen;Donald A. Morrison

Frequent Co-Authors

Ronald J. Ellis
Ronald J. Ellis University of California, San Diego
Michael Tal
Michael Tal Hebrew University of Jerusalem
Ron Dagan
Ron Dagan Ben-Gurion University of the Negev
Leiv Sigve Håvarstein
Leiv Sigve Håvarstein Norwegian University of Life Sciences
Angel Porgador
Angel Porgador Ben-Gurion University of the Negev
David S. McKay
David S. McKay Johnson Space Center
Yves V. Brun
Yves V. Brun University of Montreal
Malcolm E. Winkler
Malcolm E. Winkler Indiana University
Timothy J. Mitchell
Timothy J. Mitchell University of Birmingham
Hervé Tettelin
Hervé Tettelin University of Maryland, Baltimore

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