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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 15376 14110 6419 5732 69 16923

Alan M Lloyd publications per year

The chart shows the history of publications by Alan M Lloyd between 1984 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Alan M Lloyd published across 41 years, from 1984 to 2024, averaging 1.7 papers a year. Output peaked at 7 publications in 2003. 1 of the 70 publications appeared in the last two years.

No. of publications
2 4 6
Bar chart. Horizontal axis: year, 1984 to 2024. Vertical axis: number of publications, 0 to 7. Peak 7 publications in 2003. 1984: 1 publication 1985: 0 publications 1986: 2 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 3 publications 1992: 1 publication 1993: 2 publications 1994: 5 publications 1995: 2 publications 1996: 1 publication 1997: 0 publications 1998: 1 publication 1999: 1 publication 2000: 4 publications 2001: 2 publications 2002: 1 publication 2003: 7 publications 2004: 1 publication 2005: 4 publications 2006: 3 publications 2007: 1 publication 2008: 6 publications 2009: 3 publications 2010: 1 publication 2011: 3 publications 2012: 1 publication 2013: 0 publications 2014: 2 publications 2015: 3 publications 2016: 2 publications 2017: 2 publications 2018: 3 publications 2019: 0 publications 2020: 0 publications 2021: 1 publication 2022: 0 publications 2023: 0 publications 2024: 1 publication
1984 2024

70 publications in total across all disciplines

View publications per year as a table
Alan M Lloyd: publications per year, 1984 to 2024
Year Publications
1984 1
1985 0
1986 2
1987 0
1988 0
1989 0
1990 0
1991 3
1992 1
1993 2
1994 5
1995 2
1996 1
1997 0
1998 1
1999 1
2000 4
2001 2
2002 1
2003 7
2004 1
2005 4
2006 3
2007 1
2008 6
2009 3
2010 1
2011 3
2012 1
2013 0
2014 2
2015 3
2016 2
2017 2
2018 3
2019 0
2020 0
2021 1
2022 0
2023 0
2024 1
Total 70
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Alan M Lloyd 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 Alan M Lloyd 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, 67–76 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: 69 publications — 1st percentile

1% 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 69
77–86 231
87–96 413
97–106 546
107–116 704
117–126 848
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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Alan M Lloyd 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 Alan M Lloyd 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

Alan M Lloyd is affiliated with The University of Texas at Austin in the United States. Their research spans across several interconnected areas within the life sciences, with a focus on biochemistry, genetics, and molecular biology as well as agricultural and biological sciences.

Their scholarly output includes publications in prominent journals such as Plant Methods and Scientific Reports. Notable recent papers include "Genetic transformation technologies for the common dandelion, Taraxacum officinale" published in 2021 in Plant Methods, and "Genetic interaction between TTG2 and AtPLC1 reveals a role for phosphoinositide signaling in a co-regulated suite of Arabidopsis epidermal pathways" published in 2024 in Scientific Reports.

Alan M Lloyd's research is situated within the following main fields of study:

  • Biochemistry, Genetics and Molecular Biology
  • Agricultural and Biological Sciences

Their work further specializes in these subfields:

  • Molecular Biology
  • Ecology, Evolution, Behavior and Systematics
  • Plant Science

Key research topics associated with Alan M Lloyd include:

  • Plant Gene Expression Analysis
  • Plant biochemistry and biosynthesis
  • Plant Taxonomy and Phylogenetics
  • Plant Molecular Biology Research
  • Plant Reproductive Biology

Frequent coauthors collaborating with Alan M Lloyd are:

  • Kasia Dinkeloo
  • Araceli Cantero
  • Inyup Paik
  • Alexa Vulgamott
  • Andrew D. Ellington

Their publications demonstrate active engagement with research on plant molecular pathways, gene expression technologies, and interactions within plant signaling systems. Their work contributes to the understanding of genetic regulation and transformation methods in model and non-model plants, informing both molecular biology and agricultural research areas.

Best Publications

  • Regulation of the anthocyanin biosynthetic pathway by the TTG1/bHLH/Myb transcriptional complex in Arabidopsis seedlings.

    Antonio Gonzalez;Mingzhe Zhao;John M. Leavitt;Alan M. Lloyd

  • A network of redundant bHLH proteins functions in all TTG1-dependent pathways of Arabidopsis.

    Fan Zhang;Antonio Gonzalez;Mingzhe Zhao;C. Thomas Payne

  • GL3 Encodes a bHLH Protein That Regulates Trichome Development in Arabidopsis Through Interaction With GL1 and TTG1

    C. T. Payne;F. Zhang;Alan M Lloyd

  • A glutathione S-transferase involved in vacuolar transfer encoded by the maize gene Bronze-2.

    Kathleen A. Marrs;Mark R. Alfenito;Alan M. Lloyd;Virginia Walbot

  • Inheritance of functional foreign genes in plants.

    Robert B. Horsch;Robert T. Fraley;Stephen G. Rogers;Patricia R. Sanders

  • Arabidopsis and Nicotiana Anthocyanin Production Activated by Maize Regulators R and C1

    Alan M. Lloyd;Virginia Walbot;Ronald W. Davis

  • Targeted mutagenesis using zinc-finger nucleases in Arabidopsis

    Alan Lloyd;Christopher L. Plaisier;Dana Carroll;Gary N. Drews

  • The TTG Gene Is Required to Specify Epidermal Cell Fate and Cell Patterning in the Arabidopsis Root

    Moira E. Galway;James D. Masucci;Alan M. Lloyd;Virginia Walbot

  • The bHLH genes GLABRA3 (GL3) and ENHANCER OF GLABRA3 (EGL3) specify epidermal cell fate in the Arabidopsis root.

    Christine Bernhardt;Myeong Min Lee;Antonio Gonzalez;Fan Zhang

  • Advances in the MYB-bHLH-WD Repeat (MBW) Pigment Regulatory Model: Addition of a WRKY Factor and Co-option of an Anthocyanin MYB for Betalain Regulation.

    Alan Lloyd;Austen Brockman;Lyndsey Aguirre;Annabelle Campbell

  • The TTG1-bHLH-MYB complex controls trichome cell fate and patterning through direct targeting of regulatory loci.

    Mingzhe Zhao;Kengo Morohashi;Greg Hatlestad;Erich Grotewold

  • The AGL62 MADS Domain Protein Regulates Cellularization during Endosperm Development in Arabidopsis

    Il Ho Kang;Joshua G. Steffen;Michael F. Portereiko;Alan M Lloyd

  • Progress in the molecular genetic analysis of trichome initiation and morphogenesis in Arabidopsis

    Daniel B Szymanski;Alan M Lloyd;M.David Marks

  • Epidermal cell fate determination in Arabidopsis: patterns defined by a steroid-inducible regulator

    Alan M. Lloyd;Mark Schena;Virginia Walbot;Ronald W. Davis

  • AGL80 Is Required for Central Cell and Endosperm Development in Arabidopsis

    Michael F. Portereiko;Alan M Lloyd;Joshua G. Steffen;Jayson A. Punwani

  • Transformation of Arabidopsis thaliana with Agrobacterium tumefaciens

    Alan M. Lloyd;Arlene R. Barnason;Stephen G. Rogers;Michael C. Byrne

  • The bHLH genes GL3 and EGL3 participate in an intercellular regulatory circuit that controls cell patterning in the Arabidopsis root epidermis.

    Christine Bernhardt;Mingzhe Zhao;Antonio Gonzalez;Alan M Lloyd

  • Roles of the GLABROUS1 and TRANSPARENT TESTA GLABRA Genes in Arabidopsis Trichome Development.

    J. C. Larkin;D. G. Oppenheimer;A. M. Lloyd;E. T. Paparozzi

  • TTG1 complex MYBs, MYB5 and TT2, control outer seed coat differentiation.

    Antonio Gonzalez;John Mendenhall;Yujia Huo;Alan Lloyd

  • A steroid-inducible gene expression system for plant cells.

    Mark Schena;Alan M. Lloyd;Ronald W. Davis

Frequent Co-Authors

Ronald W. Davis
Ronald W. Davis Stanford University
Stanley J. Roux
Stanley J. Roux The University of Texas at Austin
Brian A. Larkins
Brian A. Larkins University of Arizona
Virginia Walbot
Virginia Walbot Stanford University
Robert T. Fraley
Robert T. Fraley Trace Genomics
Stephen G. Rogers
Stephen G. Rogers Monsanto (United States)
Erich Grotewold
Erich Grotewold Michigan State University
Margaret Y. Gruber
Margaret Y. Gruber Agriculture and Agriculture-Food Canada
John Schiefelbein
John Schiefelbein University of Michigan–Ann Arbor
Jorge J. Casal
Jorge J. Casal University of Buenos Aires

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