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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Genetics 106 591 562 296 280 206 59260

Allan C. Spradling publications per year

The chart shows the history of publications by Allan C. Spradling between 1974 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Allan C. Spradling published across 53 years, from 1974 to 2026, averaging 4.7 papers a year. Output peaked at 17 publications in 2025. 18 of the 250 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1974 to 2026. Vertical axis: number of publications, 0 to 17. Peak 17 publications in 2025. 1974: 2 publications 1975: 4 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 3 publications 1980: 2 publications 1981: 4 publications 1982: 4 publications 1983: 2 publications 1984: 4 publications 1985: 2 publications 1986: 3 publications 1987: 5 publications 1988: 3 publications 1989: 2 publications 1990: 6 publications 1991: 2 publications 1992: 4 publications 1993: 7 publications 1994: 4 publications 1995: 4 publications 1996: 5 publications 1997: 7 publications 1998: 4 publications 1999: 10 publications 2000: 5 publications 2001: 7 publications 2002: 1 publication 2003: 5 publications 2004: 5 publications 2005: 2 publications 2006: 9 publications 2007: 6 publications 2008: 8 publications 2009: 6 publications 2010: 4 publications 2011: 8 publications 2012: 4 publications 2013: 6 publications 2014: 2 publications 2015: 8 publications 2016: 6 publications 2017: 5 publications 2018: 5 publications 2019: 6 publications 2020: 8 publications 2021: 7 publications 2022: 3 publications 2023: 8 publications 2024: 5 publications 2025: 17 publications 2026: 1 publication
1974 2026

250 publications in total across all disciplines

View publications per year as a table
Allan C. Spradling: publications per year, 1974 to 2026
Year Publications
1974 2
1975 4
1976 0
1977 0
1978 0
1979 3
1980 2
1981 4
1982 4
1983 2
1984 4
1985 2
1986 3
1987 5
1988 3
1989 2
1990 6
1991 2
1992 4
1993 7
1994 4
1995 4
1996 5
1997 7
1998 4
1999 10
2000 5
2001 7
2002 1
2003 5
2004 5
2005 2
2006 9
2007 6
2008 8
2009 6
2010 4
2011 8
2012 4
2013 6
2014 2
2015 8
2016 6
2017 5
2018 5
2019 6
2020 8
2021 7
2022 3
2023 8
2024 5
2025 17
2026 1
Total 250
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Allan C. Spradling publications per year - data summary

  • Allan C. Spradling, a Genetics scholar from Carnegie Institution for Science, has 250 publications recorded across 53 years, from 1974 to 2026.
  • The oldest publication on record dates to 1974 and the most recent to 2026.
  • The most productive year is 2025, with 17 publications.
  • The least productive years with any output are 2002 and 2026, with 1 publication each.
  • 3 of the 53 years in the span carry no publications at all (1976, 1977 and 1978).
  • The rate of publication averages 4.7 papers per year over the whole span, or 5.0 per year counting only the 50 years with at least one publication.
  • The last 5 years on the chart (2022-2026) hold 34 publications, 14% of the career total.
  • Split into equal eras - 1974-1991: 48 publications (2.7 per year); 1992-2009: 99 publications (5.5 per year); 2010-2026: 103 publications (6.1 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Allan C. Spradling 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 Allan C. Spradling sits on this spectrum.

No. of scientists
50 100 150 200
Bar chart with 67 bars. Horizontal axis: publications, 45–54 to 703+. Vertical axis: number of scientists, 0 to 217. Most scientists, 217, have 125–134 publications. The last bar groups every scientist with 703 publications or more. The highlighted bar, 205–214 publications, is where this scientist sits. 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
45–54 publications 703+

This scientist: 206 publications — 53rd percentile

53% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Genetics scientists by publication count, Research.com 2026 ranking edition. Based on 4,342 ranked scientists.
Publications Scientists This scientist
45–54 6
55–64 10
65–74 35
75–84 84
85–94 102
95–104 151
105–114 175
115–124 203
125–134 217
135–144 205
145–154 193
155–164 188
165–174 170
175–184 178
185–194 164
195–204 173
205–214 159 206
215–224 134
225–234 143
235–244 105
245–254 114
255–264 92
265–274 88
275–284 87
285–294 80
295–304 62
305–314 75
315–324 67
325–334 60
335–344 52
345–354 40
355–364 48
365–374 47
375–384 46
385–394 31
395–404 27
405–414 40
415–424 30
425–434 43
435–444 29
445–454 14
455–464 28
465–474 21
475–484 21
485–494 22
495–504 17
505–514 12
515–524 11
525–534 8
535–544 8
545–554 14
555–564 4
565–574 11
575–584 5
585–594 11
595–604 12
605–614 7
615–624 6
625–634 10
635–644 9
645–654 10
655–664 6
665–674 6
675–684 6
685–694 4
695–702 6
703+ 100
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Allan C. Spradling publication distribution in Genetics in 2026 - data summary

  • The chart plots the publication count of all 4,342 Genetics scientists ranked by Research.com in 2026, grouped into 67 ranges running from 45–54 to 703+ publications.
  • Allan C. Spradling, a Genetics scholar from Carnegie Institution for Science, records 206 publications - the 53rd percentile of the discipline.
  • 53% of ranked Genetics scientists score the same or lower than Allan C. Spradling, and about 47% score higher.
  • The median of the discipline falls in the 195–204 publications range, and Allan C. Spradling ranks above the median.
  • The most crowded range is 125–134 publications, holding 217 scientists (5% of the field).
  • 56% of the field sits in the lowest quarter of the value range (up to 205–214 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 703 publications or more, 100 scientists in all (2% of the field).

Allan C. Spradling 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 Allan C. Spradling sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 160+. Vertical axis: number of scientists, 0 to 191. Most scientists, 191, have 62–63 D-Index. The last bar groups every scientist with 160 D-Index or more. The highlighted bar, 106–107 D-Index, is where this scientist sits. 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
40–41 D-Index 160+

This scientist: 106 D-Index — 87th percentile

87% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Genetics scientists by D-index, Research.com 2026 ranking edition. Based on 4,342 ranked scientists.
D-Index Scientists This scientist
40–41 24
42–43 52
44–45 84
46–47 112
48–49 118
50–51 141
52–53 143
54–55 145
56–57 179
58–59 162
60–61 175
62–63 191
64–65 172
66–67 184
68–69 164
70–71 158
72–73 150
74–75 136
76–77 127
78–79 127
80–81 111
82–83 110
84–85 110
86–87 84
88–89 102
90–91 66
92–93 72
94–95 70
96–97 54
98–99 60
100–101 49
102–103 55
104–105 45
106–107 42 106
108–109 28
110–111 39
112–113 25
114–115 31
116–117 29
118–119 34
120–121 29
122–123 29
124–125 18
126–127 27
128–129 22
130–131 16
132–133 11
134–135 17
136–137 12
138–139 21
140–141 4
142–143 9
144–145 14
146–147 6
148–149 10
150–151 7
152–153 9
154–155 8
156–157 8
158–159 9
160+ 96
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Allan C. Spradling D-index placement in Genetics in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 4,342 Genetics scientists ranked by Research.com in 2026, grouped into 61 ranges running from 40–41 to 160+ D-Index.
  • Allan C. Spradling, a Genetics scholar from Carnegie Institution for Science, records 106 D-Index - the 87th percentile of the discipline.
  • 87% of ranked Genetics scientists score the same or lower than Allan C. Spradling, and about 13% score higher.
  • The median of the discipline falls in the 70–71 D-Index range, and Allan C. Spradling ranks above the median.
  • The most crowded range is 62–63 D-Index, holding 191 scientists (4% of the field).
  • 51% of the field sits in the lowest quarter of the value range (up to 70–71 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 160 D-Index or more, 96 scientists in all (2% of the field).

Research.com Recognitions

  • 2008 - Gruber Prize in Genetics
  • 2003 - Edwin Grant Conklin Medal, Society for Developmental Biology
  • 1992 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1991 - Fellow of the American Academy of Arts and Sciences
  • 1989 - Genetics Society of America Medal
  • 1989 - Member of the National Academy of Sciences

Overview

Allan C. Spradling is affiliated with the Carnegie Institution for Science in the United States. Their research primarily focuses on the field of Biochemistry, Genetics, and Molecular Biology, with significant contributions to Molecular Biology, Insect Science, Public Health, Environmental and Occupational Health, Genetics, and Immunology.

The scientist's work covers several main topics, including:

  • Reproductive Biology and Fertility
  • Insect symbiosis and bacterial influences
  • Invertebrate Immune Response Mechanisms
  • Genomics and Chromatin Dynamics
  • Developmental Biology and Gene Regulation
  • Neurobiology and Insect Physiology Research
  • Animal Genetics and Reproduction

Spradling has published extensively, with frequent appearances in several journals and publication venues. These include:

  • bioRxiv (Cold Spring Harbor Laboratory), with 13 publications
  • eLife, with 7 publications
  • Proceedings of the National Academy of Sciences, with 5 publications
  • BMC Genomics, with 2 publications
  • Science, with 2 publications

Notable recent papers authored or coauthored by Spradling include:

  • "Two distinct pathways of pregranulosa cell differentiation support follicle formation in the mouse ovary," 2020, Proceedings of the National Academy of Sciences
  • "Mouse oocytes develop in cysts with the help of nurse cells," 2022, Cell
  • "Conservation of oocyte development in germline cysts from Drosophila to mouse," 2022, eLife
  • "A symbiotic physical niche in Drosophila melanogaster regulates stable association of a multi-species gut microbiota," 2023, Nature Communications
  • "An abundant quiescent stem cell population in Drosophila Malpighian tubules protects principal cells from kidney stones," 2020, eLife

Frequent collaborators in Spradling's research network include:

  • Haolong Zhu
  • John Urban
  • Wanbao Niu
  • Chenhui Wang
  • Steven Z. DeLuca

Throughout their career, Spradling has received several awards recognizing their contributions to science, such as:

  • Gruber Prize in Genetics (2008)
  • Edwin Grant Conklin Medal, Society for Developmental Biology (2003)
  • Fellow of the American Association for the Advancement of Science (AAAS) (1992)
  • Fellow of the American Academy of Arts and Sciences (1991)
  • Member of the National Academy of Sciences (1989)
  • Genetics Society of America Medal (1989)

Best Publications

  • The genome sequence of Drosophila melanogaster

    M. D. Adams;S. E. Celniker;R. A. Holt;C. A. Evans

  • Genetic Transformation of Drosophila with Transposable Element Vectors

    Gerald M. Rubin;Allan C. Spradling

  • Stem Cells and Niches: Mechanisms That Promote Stem Cell Maintenance throughout Life

    Sean J. Morrison;Allan C. Spradling

  • Transposition of cloned P elements into Drosophila germ line chromosomes

    Allan C. Spradling;Gerald M. Rubin

  • Stem cells find their niche

    Allan Spradling;Daniela Drummond-Barbosa;Toshie Kai

  • Developmental genetics of oogenesis

    A. Spradling

  • The adult Drosophila posterior midgut is maintained by pluripotent stem cells

    Benjamin Ohlstein;Allan Spradling

  • The BDGP gene disruption project: single transposon insertions associated with 40% of Drosophila genes.

    Hugo J. Bellen;Robert W. Levis;Guochun Liao;Yuchun He

  • The Berkeley Drosophila Genome Project gene disruption project: Single P-element insertions mutating 25% of vital Drosophila genes.

    A C Spradling;D Stern;A Beaton;E J Rhem

  • A Niche Maintaining Germ Line Stem Cells in the Drosophila Ovary

    Ting Xie;Allan C. Spradling

  • A novel group of pumilio mutations affects the asymmetric division of germline stem cells in the Drosophila ovary

    Haifan Lin;Allan C. Spradling

  • Mouse ovarian germ cell cysts undergo programmed breakdown to form primordial follicles.

    Melissa E. Pepling;Allan C. Spradling

  • decapentaplegic is essential for the maintenance and division of germline stem cells in the Drosophila ovary.

    Ting Xie;Allan C Spradling

  • Insertional mutagenesis of the Drosophila genome with single P elements

    Lynn Cooley;Richard Kelley;Allan Spradling

  • MiMIC: a highly versatile transposon insertion resource for engineering Drosophila melanogaster genes.

    Koen J T Venken;Karen L Schulze;Nele A Haelterman;Hongling Pan

  • Identification and behavior of epithelial stem cells in the Drosophila ovary

    J. Margolis;A. Spradling

  • Multipotent Drosophila Intestinal Stem Cells Specify Daughter Cell Fates by Differential Notch Signaling

    Benjamin Ohlstein;Allan Spradling

  • Stem cells and their progeny respond to nutritional changes during Drosophila oogenesis.

    Daniela Drummond-Barbosa;Allan C. Spradling

  • The Carnegie Protein Trap Library: A Versatile Tool for Drosophila Developmental Studies

    Michael Buszczak;Shelley Paterno;Daniel Lighthouse;Julia Bachman

  • The Berkeley Drosophila Genome Project gene disruption project: Single P-element insertions mutating 25% of vital Drosophila genes.

    N Mozden;Hari S. Misra;E J Rhem;Daniel A. Beaton

Frequent Co-Authors

Gerald M. Rubin
Gerald M. Rubin Howard Hughes Medical Institute
Hugo J. Bellen
Hugo J. Bellen Baylor College of Medicine
Roger A. Hoskins
Roger A. Hoskins Lawrence Berkeley National Laboratory
Norbert Perrimon
Norbert Perrimon Harvard University
Stephanie E. Mohr
Stephanie E. Mohr Harvard University
Yanhui Hu
Yanhui Hu Harvard University
Gary H. Karpen
Gary H. Karpen University of California, Berkeley
Michael Ashburner
Michael Ashburner University of Cambridge
Suzanna E. Lewis
Suzanna E. Lewis Lawrence Berkeley National Laboratory
Susan E. Celniker
Susan E. Celniker Lawrence Berkeley National Laboratory

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