World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
65
Citations
25603
World Ranking
895
National Ranking
241

James E. Specht publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where James E. Specht sits on this spectrum.

36–40 publications: 2 scientists 41–45 publications: 7 scientists 46–50 publications: 40 scientists 51–55 publications: 58 scientists 56–60 publications: 60 scientists 61–65 publications: 107 scientists 66–70 publications: 130 scientists 71–75 publications: 153 scientists 76–80 publications: 191 scientists 81–85 publications: 199 scientists 86–90 publications: 206 scientists 91–95 publications: 218 scientists 96–100 publications: 226 scientists 101–105 publications: 227 scientists 106–110 publications: 247 scientists 111–115 publications: 255 scientists 116–120 publications: 253 scientists 121–125 publications: 233 scientists 126–130 publications: 219 scientists 131–135 publications: 201 scientists 136–140 publications: 194 scientists 141–145 publications: 176 scientists 146–150 publications: 157 scientists 151–155 publications: 147 scientists 156–160 publications: 151 scientists 161–165 publications: 159 scientists 166–170 publications: 137 scientists 171–175 publications: 128 scientists 176–180 publications: 126 scientists 181–185 publications: 98 scientists 186–190 publications: 114 scientists 191–195 publications: 100 scientists 196–200 publications: 90 scientists 201–205 publications: 71 scientists 206–210 publications: 98 scientists 211–215 publications: 70 scientists 216–220 publications: 86 scientists 221–225 publications: 61 scientists 226–230 publications: 58 scientists 231–235 publications: 53 scientists 236–240 publications: 64 scientists 241–245 publications: 39 scientists 246–250 publications: 46 scientists 251–255 publications: 51 scientists 256–260 publications: 36 scientists 261–265 publications: 44 scientists 266–270 publications: 35 scientists 271–275 publications: 30 scientists 276–280 publications: 33 scientists 281–285 publications: 35 scientists 286–290 publications: 36 scientists 291–295 publications: 26 scientists 296–300 publications: 26 scientists 301–305 publications: 31 scientists 306–310 publications: 30 scientists 311–315 publications: 21 scientists 316–320 publications: 29 scientists 321–325 publications: 14 scientists 326–330 publications: 15 scientists 331–335 publications: 15 scientists 336–340 publications: 17 scientists 341–345 publications: 15 scientists 346–350 publications: 12 scientists 351–355 publications: 17 scientists 356–360 publications: 18 scientists 361–365 publications: 12 scientists 366–370 publications: 11 scientists 371–375 publications: 6 scientists 376–380 publications: 6 scientists 381–385 publications: 11 scientists 386–390 publications: 9 scientists 391–395 publications: 10 scientists 396–400 publications: 8 scientists 401–405 publications: 4 scientists 406–410 publications: 9 scientists 411–415 publications: 11 scientists 416–420 publications: 4 scientists 421–425 publications: 7 scientists 426–430 publications: 4 scientists 431–435 publications: 3 scientists 436–440 publications: 5 scientists 441–445 publications: 8 scientists 446–450 publications: 6 scientists 451–455 publications: 7 scientists 456–460 publications: 5 scientists 461–465 publications: 6 scientists 466 publications: 2 scientists 467+ publications: 99 scientists
36 publications 467+

This scientist: 180 publications — 71st percentile

71% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 467 publications or more.

James E. Specht D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where James E. Specht sits on this spectrum.

30 D-Index: 200 scientists 31 D-Index: 236 scientists 32 D-Index: 253 scientists 33 D-Index: 283 scientists 34 D-Index: 288 scientists 35 D-Index: 240 scientists 36 D-Index: 246 scientists 37 D-Index: 243 scientists 38 D-Index: 247 scientists 39 D-Index: 229 scientists 40 D-Index: 232 scientists 41 D-Index: 230 scientists 42 D-Index: 228 scientists 43 D-Index: 219 scientists 44 D-Index: 193 scientists 45 D-Index: 164 scientists 46 D-Index: 158 scientists 47 D-Index: 143 scientists 48 D-Index: 131 scientists 49 D-Index: 127 scientists 50 D-Index: 122 scientists 51 D-Index: 122 scientists 52 D-Index: 110 scientists 53 D-Index: 102 scientists 54 D-Index: 98 scientists 55 D-Index: 79 scientists 56 D-Index: 85 scientists 57 D-Index: 88 scientists 58 D-Index: 91 scientists 59 D-Index: 62 scientists 60 D-Index: 61 scientists 61 D-Index: 59 scientists 62 D-Index: 54 scientists 63 D-Index: 61 scientists 64 D-Index: 59 scientists 65 D-Index: 58 scientists 66 D-Index: 41 scientists 67 D-Index: 49 scientists 68 D-Index: 39 scientists 69 D-Index: 32 scientists 70 D-Index: 40 scientists 71 D-Index: 47 scientists 72 D-Index: 38 scientists 73 D-Index: 28 scientists 74 D-Index: 29 scientists 75 D-Index: 28 scientists 76 D-Index: 22 scientists 77 D-Index: 21 scientists 78 D-Index: 25 scientists 79 D-Index: 26 scientists 80 D-Index: 19 scientists 81 D-Index: 16 scientists 82 D-Index: 12 scientists 83 D-Index: 16 scientists 84 D-Index: 14 scientists 85 D-Index: 11 scientists 86 D-Index: 17 scientists 87 D-Index: 13 scientists 88 D-Index: 10 scientists 89 D-Index: 12 scientists 90 D-Index: 18 scientists 91 D-Index: 16 scientists 92 D-Index: 16 scientists 93 D-Index: 17 scientists 94 D-Index: 12 scientists 95 D-Index: 8 scientists 96 D-Index: 9 scientists 97 D-Index: 9 scientists 98 D-Index: 11 scientists 99 D-Index: 12 scientists 100 D-Index: 5 scientists 101 D-Index: 8 scientists 102 D-Index: 4 scientists 103 D-Index: 11 scientists 104 D-Index: 5 scientists 105 D-Index: 9 scientists 106 D-Index: 7 scientists 107 D-Index: 4 scientists 108 D-Index: 8 scientists 109+ D-Index: 99 scientists
30 D-Index 109+

This scientist: 65 D-Index — 86th percentile

86% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 109 D-Index or more.

Research.com Recognitions

  • 1987 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

What is he best known for?

The fields of study he is best known for:

  • Gene
  • Genetics
  • Agriculture

James E. Specht mainly focuses on Genetics, Quantitative trait locus, Genome, Genetic linkage and Restriction fragment length polymorphism. His work on Gene mapping, Gene, Single-nucleotide polymorphism and Locus as part of general Genetics research is frequently linked to Glycine soja, bridging the gap between disciplines. His Quantitative trait locus research includes elements of Botany, Linkage disequilibrium, Haplotype, Genetic association and Inbred strain.

The Genomics and Gene density research James E. Specht does as part of his general Genome study is frequently linked to other disciplines of science, such as Paleopolyploidy, therefore creating a link between diverse domains of science. The various areas that James E. Specht examines in his Genetic linkage study include GenBank and Minisatellite Repeat, Tandem repeat. His study explores the link between Restriction fragment length polymorphism and topics such as RAPD that cross with problems in Molecular marker and Centimorgan.

His most cited work include:

  • Genome sequence of the palaeopolyploid soybean (2910 citations)
  • An Integrated Genetic Linkage Map of the Soybean Genome (824 citations)
  • A new integrated genetic linkage map of the soybean. (781 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of study are Agronomy, Genetics, Cultivar, Botany and Gene. His work on Sowing, Irrigation, Yield and Yield gap as part of general Agronomy research is frequently linked to Mathematics, thereby connecting diverse disciplines of science. His is doing research in Locus, Restriction fragment length polymorphism, Gene mapping, Genome and Quantitative trait locus, both of which are found in Genetics.

His research investigates the link between Quantitative trait locus and topics such as Single-nucleotide polymorphism that cross with problems in Germplasm. His study in Botany is interdisciplinary in nature, drawing from both Inbred strain and Horticulture. In the field of Gene, his study on Arabidopsis overlaps with subjects such as Glycine soja.

He most often published in these fields:

  • Agronomy (39.44%)
  • Genetics (29.58%)
  • Cultivar (21.13%)

What were the highlights of his more recent work (between 2010-2021)?

  • Agronomy (39.44%)
  • Cultivar (21.13%)
  • Sowing (9.86%)

In recent papers he was focusing on the following fields of study:

His primary areas of investigation include Agronomy, Cultivar, Sowing, Genetics and Crop. His Yield gap, Irrigation and Yield study in the realm of Agronomy connects with subjects such as Mathematics and Yield. His biological study spans a wide range of topics, including Genetic gain, Seed protein and Yield gain.

His Sowing research focuses on Yield and how it connects with Agriculture and Crop yield. As part of his studies on Genetics, James E. Specht frequently links adjacent subjects like Germplasm. His study on Arabidopsis thaliana, Arabidopsis, Nested association mapping and Genome is often connected to Glycine soja as part of broader study in Gene.

Between 2010 and 2021, his most popular works were:

  • A genome-wide association study of seed protein and oil content in soybean. (375 citations)
  • Genetic Improvement of U.S. Soybean in Maturity Groups II, III, and IV (92 citations)
  • A Population Structure and Genome‐Wide Association Analysis on the USDA Soybean Germplasm Collection (85 citations)

In his most recent research, the most cited papers focused on:

  • Gene
  • Agriculture
  • Genetics

His main research concerns Agronomy, Sowing, Genetics, Cultivar and Genetic gain. His work on Crop yield, Tillage and Drought stress as part of his general Agronomy study is frequently connected to Mathematics and Crop transpiration, thereby bridging the divide between different branches of science. His Sowing course of study focuses on Irrigation and Agriculture, Crop and Fertilizer.

His work is connected to Quantitative trait locus, Positional cloning, Single-nucleotide polymorphism, Genetic association and Allele, as a part of Genetics. His work investigates the relationship between Quantitative trait locus and topics such as Lateral root that intersect with problems in Locus. His Genetic gain research integrates issues from Genetic diversity, Biotechnology, Genomics, Plant breeding and Genotyping.

Best Publications

  • Genome sequence of the palaeopolyploid soybean

    Jeremy Schmutz;Steven B. Cannon;Jessica Schlueter;Jessica Schlueter;Jianxin Ma

  • Nitrogen uptake, fixation and response to fertilizer N in soybeans: A review

    F. Salvagiotti;Kenneth G. Cassman;James E. Specht;Daniel T. Walters

  • An Integrated Genetic Linkage Map of the Soybean Genome

    P.B. Cregan;T. Jarvik;A.L. Bush;R.C. Shoemaker

  • A new integrated genetic linkage map of the soybean.

    Q.J. Song;L.F. Marek;R.C. Shoemaker;K.G. Lark

  • Soybeans: improvement, production, and uses

    H. R. Boerma;J. E. Specht

  • Impacts of genetic bottlenecks on soybean genome diversity.

    David L. Hyten;Qijian Song;Qijian Song;Youlin Zhu;Youlin Zhu;Ik Young Choi

  • RNA-Seq Atlas of Glycine max: a guide to the soybean transcriptome.

    Andrew J. Severin;Jenna L. Woody;Yung Tsi Bolon;Bindu Joseph

  • Soybean response to water : A QTL analysis of drought tolerance

    J.E. Specht;K. Chase;M. Macrander;G.L. Graef

  • Soybean yield potential: A genetic and physiological perspective

    J. E. Specht;D. J. Hume;S. V. Kumudini

  • A genome-wide association study of seed protein and oil content in soybean.

    Eun-Young Hwang;Qijian Song;Gaofeng Jia;James E Specht

  • Artificial selection for determinate growth habit in soybean

    Zhixi Tian;Xiaobo Wang;Rian Lee;Yinghui Li

  • Genome Duplication in Soybean ( Glycine subgenus soja )

    R C Shoemaker;K Polzin;J Labate;J Specht

  • Integration of Simple Sequence Repeat DNA Markers into a Soybean Linkage Map

    Mahinur S. Akkaya;Randy C. Shoemaker;James E. Specht;Arvind A. Bhagwat

  • The Seed Protein, Oil, and Yield QTL on Soybean Linkage Group I

    J. Chung;H. L. Babka;G. L. Graef;P. E. Staswick

  • A soybean transcript map: gene distribution, haplotype and single-nucleotide polymorphism analysis.

    Ik Young Choi;David L. Hyten;Lakshmi K. Matukumalli;Qijian Song

  • A high density integrated genetic linkage map of soybean and the development of a 1536 universal soy linkage panel for quantitative trait locus mapping.

    David L. Hyten;Ik-Young Choi;Ik-Young Choi;Qijian Song;Qijian Song;James E. Specht

  • Understanding and modeling the effect of temperature and daylength on soybean phenology under high-yield conditions

    T. D. Setiyono;Albert Weiss;James E. Specht;A. M. Bastidas

  • High-throughput SNP discovery through deep resequencing of a reduced representation library to anchor and orient scaffolds in the soybean whole genome sequence

    David L Hyten;Steven B Cannon;Qijian Song;Qijian Song;Nathan Weeks

  • High-throughput genotyping with the GoldenGate assay in the complex genome of soybean

    David L. Hyten;Qijian Song;Qijian Song;Ik Young Choi;Ik Young Choi;Mun Sup Yoon;Mun Sup Yoon

  • Soybean Sowing Date: The Vegetative, Reproductive, and Agronomic Impacts

    A. M. Bastidas;T. D. Setiyono;Achim Dobermann;Kenneth G. Cassman

  • Identification of QTLs for Resistance to Sclerotinia sclerotiorum in Soybean

    Venancio S. Arahana;George L. Graef;James E. Specht;James R. Steadman

  • Temperature Tolerance in Soybeans. I. Evaluation of a Technique for Assessing Cellular Membrane Thermostability1

    J. R. Martineau;J. E. Specht;J. H. Williams;C. Y. Sullivan

  • Impacts of genetic bottlenecks on soybeangenome diversity

    D. L. Hyten;Qijian Song;Youlin Zhu;Ik-Young Choi

Frequent Co-Authors

Perry B. Cregan
Perry B. Cregan United States Department of Agriculture
Qijian Song
Qijian Song Agricultural Research Service
Kenneth G. Cassman
Kenneth G. Cassman University of Nebraska–Lincoln
Randy C. Shoemaker
Randy C. Shoemaker Agricultural Research Service
David L. Hyten
David L. Hyten University of Nebraska–Lincoln
Brian W. Diers
Brian W. Diers University of Illinois at Urbana-Champaign
Shawn P. Conley
Shawn P. Conley University of Wisconsin–Madison
Patricio Grassini
Patricio Grassini University of Nebraska–Lincoln
Achim Dobermann
Achim Dobermann International Fertilizer Association
Randall L. Nelson
Randall L. Nelson University of Illinois at Urbana-Champaign

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