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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Biology and Biochemistry 54 15624 14353 1101 1025 126 10642

Siegfried Roth publications per year

The chart shows the history of publications by Siegfried Roth between 1987 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Siegfried Roth published across 39 years, from 1987 to 2025, averaging 3.8 papers a year. Output peaked at 17 publications in 2022. 4 of the 149 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1987 to 2025. Vertical axis: number of publications, 0 to 17. Peak 17 publications in 2022. 1987: 2 publications 1988: 0 publications 1989: 2 publications 1990: 0 publications 1991: 3 publications 1992: 1 publication 1993: 2 publications 1994: 4 publications 1995: 2 publications 1996: 1 publication 1997: 1 publication 1998: 2 publications 1999: 5 publications 2000: 3 publications 2001: 4 publications 2002: 6 publications 2003: 3 publications 2004: 2 publications 2005: 7 publications 2006: 3 publications 2007: 1 publication 2008: 7 publications 2009: 3 publications 2010: 5 publications 2011: 8 publications 2012: 5 publications 2013: 5 publications 2014: 3 publications 2015: 5 publications 2016: 8 publications 2017: 3 publications 2018: 3 publications 2019: 5 publications 2020: 4 publications 2021: 8 publications 2022: 17 publications 2023: 2 publications 2024: 2 publications 2025: 2 publications
1987 2025

149 publications in total across all disciplines

View publications per year as a table
Siegfried Roth: publications per year, 1987 to 2025
Year Publications
1987 2
1988 0
1989 2
1990 0
1991 3
1992 1
1993 2
1994 4
1995 2
1996 1
1997 1
1998 2
1999 5
2000 3
2001 4
2002 6
2003 3
2004 2
2005 7
2006 3
2007 1
2008 7
2009 3
2010 5
2011 8
2012 5
2013 5
2014 3
2015 5
2016 8
2017 3
2018 3
2019 5
2020 4
2021 8
2022 17
2023 2
2024 2
2025 2
Total 149
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Siegfried Roth publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Siegfried Roth sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 100 bars. Horizontal axis: publications, 47–56 to 1,028+. Vertical axis: number of scientists, 0 to 980. Most scientists, 980, have 127–136 publications. The last bar groups every scientist with 1,028 publications or more. The highlighted bar, 117–126 publications, is where this scientist sits. 47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 413 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 848 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 949 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 840 scientists 207–216 publications: 733 scientists 217–226 publications: 708 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 417 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 196 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 59 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientist 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientist 1,028+ publications: 100 scientists
47–56 publications 1,028+

This scientist: 126 publications — 15th percentile

15% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

View publications distribution as a table
Number of Biology and Biochemistry scientists by publication count, Research.com 2026 ranking edition. Based on 19,587 ranked scientists.
Publications Scientists This scientist
47–56 8
57–66 35
67–76 106
77–86 231
87–96 413
97–106 546
107–116 704
117–126 848 126
127–136 980
137–146 942
147–156 969
157–166 949
167–176 951
177–186 915
187–196 787
197–206 840
207–216 733
217–226 708
227–236 651
237–246 605
247–256 510
257–266 524
267–276 434
277–286 417
287–296 350
297–306 363
307–316 315
317–326 296
327–336 261
337–346 240
347–356 219
357–366 196
367–376 154
377–386 161
387–396 155
397–406 145
407–416 124
417–426 112
427–436 132
437–446 116
447–456 99
457–466 81
467–476 91
477–486 80
487–496 80
497–506 59
507–516 36
517–526 46
527–536 54
537–546 44
547–556 43
557–566 43
567–576 42
577–586 25
587–596 34
597–606 23
607–616 33
617–626 31
627–636 27
637–646 25
647–656 28
657–666 34
667–676 18
677–686 16
687–696 10
697–706 12
707–716 21
717–726 12
727–736 12
737–746 10
747–756 7
757–766 13
767–776 15
777–786 13
787–796 9
797–806 9
807–816 7
817–826 4
827–836 9
837–846 7
847–856 3
857–866 5
867–876 5
877–886 11
887–896 3
897–906 4
907–916 7
917–926 5
927–936 6
937–946 6
947–956 3
957–966 7
967–976 2
977–986 2
987–996 1
997–1,006 5
1,007–1,016 2
1,017–1,026 2
1,027 1
1,028+ 100
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Siegfried Roth D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Siegfried Roth sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 65 bars. Horizontal axis: D-Index, 40–41 to 167+. Vertical axis: number of scientists, 0 to 1,253. Most scientists, 1,253, have 58–59 D-Index. The last bar groups every scientist with 167 D-Index or more. The highlighted bar, 54–55 D-Index, is where this scientist sits. 40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 316 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 899 scientists 52–53 D-Index: 1,025 scientists 54–55 D-Index: 1,149 scientists 56–57 D-Index: 1,235 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,162 scientists 62–63 D-Index: 1,130 scientists 64–65 D-Index: 1,031 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 714 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 71 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40–41 D-Index 167+

This scientist: 54 D-Index — 22nd percentile

22% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

View D-Index distribution as a table
Number of Biology and Biochemistry scientists by D-index, Research.com 2026 ranking edition. Based on 19,587 ranked scientists.
D-Index Scientists This scientist
40–41 80
42–43 183
44–45 316
46–47 504
48–49 718
50–51 899
52–53 1,025
54–55 1,149 54
56–57 1,235
58–59 1,253
60–61 1,162
62–63 1,130
64–65 1,031
66–67 897
68–69 814
70–71 714
72–73 709
74–75 596
76–77 512
78–79 473
80–81 412
82–83 373
84–85 358
86–87 285
88–89 273
90–91 227
92–93 208
94–95 193
96–97 153
98–99 157
100–101 148
102–103 120
104–105 113
106–107 100
108–109 86
110–111 67
112–113 71
114–115 73
116–117 64
118–119 53
120–121 60
122–123 54
124–125 43
126–127 38
128–129 49
130–131 26
132–133 18
134–135 23
136–137 32
138–139 32
140–141 27
142–143 19
144–145 22
146–147 12
148–149 16
150–151 14
152–153 10
154–155 13
156–157 10
158–159 7
160–161 9
162–163 13
164–165 4
166 4
167+ 98
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Overview

Siegfried Roth is affiliated with the University of Cologne in Germany. Their research spans several areas within biochemistry, genetics, and molecular biology, with a notable concentration in agricultural and biological sciences. The scientist's work addresses molecular biology, genetics, insect science, ecology, evolution, behavior, systematics, and immunology.

The main topics covered by Siegfried Roth include:

  • Insect resistance and genetics
  • Insect and arachnid ecology and behavior
  • Insect symbiosis and bacterial influences
  • Neurobiology and insect physiology research
  • Invertebrate immune response mechanisms
  • Animal genetics and reproduction
  • Animal behavior and reproduction

Recent publications authored or co-authored by Siegfried Roth highlight studies in genetic and developmental biology of insects. Selected recent papers include:

  • "Enhanced genome assembly and a new official gene set for Tribolium castaneum," published in 2020 in BMC Genomics
  • "Juvenile hormone signaling promotes ovulation and maintains egg shape by inducing expression of extracellular matrix genes," published in 2021 in Proceedings of the National Academy of Sciences
  • "Screens in fly and beetle reveal vastly divergent gene sets required for developmental processes," published in 2022 in BMC Biology
  • "Striking parallels between dorsoventral patterning in Drosophila and Gryllus reveal a complex evolutionary history behind a model gene regulatory network," published in 2021 in eLife
  • "Convergent Adaptation of Ootheca Formation as a Reproductive Strategy in Polyneoptera," published in 2022 in Molecular Biology and Evolution

Frequent publication venues for their work include:

  • Faculty Opinions - Post-Publication Peer Review of the Biomedical Literature
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Schwäbische Heimat
  • BMC Genomics
  • Proceedings of the National Academy of Sciences

Siegfried Roth has collaborated regularly with several researchers, identifying frequent co-authors as:

  • Yen-Ta Chen
  • Jürgen Dönitz
  • Janna Siemanowski
  • Michael Schoppmeier
  • Martin Klingler

Best Publications

  • The genome of the model beetle and pest Tribolium castaneum.

    Stephen Richards;Richard A. Gibbs;George M. Weinstock;Susan J. Brown

  • A gradient of nuclear localization of the dorsal protein determines dorsoventral pattern in the Drosophila embryo

    Siegfried Roth;David Stein;Christiane Nüsslein-Volhard

  • cornichon and the EGF receptor signaling process are necessary for both anterior-posterior and dorsal-ventral pattern formation in Drosophila

    Siegfried Roth;F Shira Neuman-Silberberg;Gail Barcelo;Trudi Schüpbach

  • The polarity of the dorsoventral axis in the drosophila embryo is defined by an extracellular signal

    David Stein;Siegfried Roth;Elisabeth Vogelsang;Christians Nu¨sslein-Volhard

  • The Drosophila gene brinker reveals a novel mechanism of Dpp target gene regulation.

    Anna Jaźwińska;Nikolai Kirov;Eric Francis Wieschaus;Siegfried Roth

  • Molecular-resolution images of Langmuir–Blodgett films using atomic force microscopy

    E. Meyer;L. Howald;R. M. Overney;H. Heinzelmann;H. Heinzelmann

  • Dorsoventral Axis Formation in the Drosophila Embryo—Shaping and Transducing a Morphogen Gradient

    Bernard Moussian;Siegfried Roth

  • Polar transport in the Drosophila oocyte requires Dynein and Kinesin I cooperation.

    Jens Januschke;Louis Gervais;Sajith Dass;Julia A. Kaltschmidt

  • The Drosophila cell cycle gene fizzy is required for normal degradation of cyclins A and B during mitosis and has homology to the CDC20 gene of Saccharomyces cerevisiae.

    I A Dawson;S Roth;S Artavanis-Tsakonas

  • cactus, a maternal gene required for proper formation of the dorsoventral morphogen gradient in Drosophila embryos

    S. Roth;Y. Hiromi;D. Godt;C. Nusslein-Volhard

  • The role of brinker in mediating the graded response to Dpp in early Drosophila embryos.

    A. Jazwinska;C. Rushlow;S. Roth

  • Symmetry Breaking During Drosophila Oogenesis

    Siegfried Roth;Jeremy A. Lynch

  • Distinct Functions of the Tribolium zerknu¨llt Genes in Serosa Specification and Dorsal Closure

    Maurijn van der Zee;Nicola Berns;Siegfried Roth

  • The iBeetle large-scale RNAi screen reveals gene functions for insect development and physiology

    Christian Schmitt-Engel;Dorothea Schultheis;Jonas Schwirz;Nadi Ströhlein

  • Twist and Notch negatively regulate adult muscle differentiation in Drosophila

    Sumita Anant;Sudipto Roy;K. VijayRaghavan

  • The relationship between ovarian and embryonic dorsoventral patterning in Drosophila

    Siegfried Roth;Trudi Schüpbach

  • The maternal and early embryonic transcriptome of the milkweed bug Oncopeltus fasciatus

    Benjamin Scott Ewen-Campen;Nathan Shaner;Kristen A. Panfilio;Yuichiro Suzuki

  • A Serpin Regulates Dorsal-Ventral Axis Formation in the Drosophila Embryo

    Petros Ligoxygakis;Siegfried Roth;Jean-Marc Reichhart

  • Tribolium embryogenesis: a SEM study of cell shapes and movements from blastoderm to serosal closure.

    Klaus Handel;Christoph G. Grünfelder;Siegfried Roth;Klaus Sander

  • Local Gurken signaling and dynamic MAPK activation during Drosophila oogenesis

    Francesca Peri;Christian Bökel;Siegfried Roth

Frequent Co-Authors

Robert M. Waterhouse
Robert M. Waterhouse Swiss Institute of Bioinformatics
Evgeny M. Zdobnov
Evgeny M. Zdobnov Swiss Institute of Bioinformatics
Mario Stanke
Mario Stanke University of Greifswald
Richard A. Gibbs
Richard A. Gibbs Baylor College of Medicine
Ernst A. Wimmer
Ernst A. Wimmer University of Göttingen
Kim C. Worley
Kim C. Worley Baylor College of Medicine
Hugh M. Robertson
Hugh M. Robertson University of Illinois at Urbana-Champaign
Donna M. Muzny
Donna M. Muzny Baylor College of Medicine
Stephen Richards
Stephen Richards South Australian Museum

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