Robert D. Riddle

3.9k total citations · 1 hit paper
14 papers, 3.2k citations indexed

About

Robert D. Riddle is a scholar working on Molecular Biology, Genetics and Developmental Biology. According to data from OpenAlex, Robert D. Riddle has authored 14 papers receiving a total of 3.2k indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Molecular Biology, 4 papers in Genetics and 3 papers in Developmental Biology. Recurrent topics in Robert D. Riddle's work include Developmental Biology and Gene Regulation (9 papers), Congenital heart defects research (4 papers) and Congenital limb and hand anomalies (3 papers). Robert D. Riddle is often cited by papers focused on Developmental Biology and Gene Regulation (9 papers), Congenital heart defects research (4 papers) and Congenital limb and hand anomalies (3 papers). Robert D. Riddle collaborates with scholars based in United States and Japan. Robert D. Riddle's co-authors include Randy L. Johnson, Ed Laufer, Cliff Tabin, Monica Ensini, Tammy N. Tsuchida, Thomas M. Jessell, Craig E. Nelson, Masayuki Yamamoto, James Douglas Engel and Clifford J. Tabin and has published in prestigious journals such as Cell, Proceedings of the National Academy of Sciences and Nucleic Acids Research.

In The Last Decade

Robert D. Riddle

14 papers receiving 3.1k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Sonic hedgehog mediates the polarizing activity of the ZPA

1993 1.9k citations Robert D. Riddle, Randy L. Johnson et al. Cell profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Robert D. Riddle United States	13	2.9k	822	536	265	229	14	3.2k
Aimée Zúñiga Switzerland	25	2.9k 1.0×	833 1.0×	525 1.0×	389 1.5×	223 1.0×	45	3.9k
Dennis Summerbell United Kingdom	34	3.7k 1.3×	1.2k 1.4×	413 0.8×	577 2.2×	388 1.7×	58	4.2k
María A. Ros Spain	35	3.7k 1.3×	1.1k 1.3×	747 1.4×	536 2.0×	164 0.7×	82	4.5k
Ed Laufer United States	25	4.9k 1.7×	1.4k 1.7×	809 1.5×	531 2.0×	389 1.7×	36	5.5k
Brian A. Parr United States	16	2.2k 0.8×	584 0.7×	185 0.3×	209 0.8×	300 1.3×	20	2.8k
Concepción Rodrı́guez-Esteban United States	24	3.7k 1.3×	1.1k 1.3×	164 0.3×	422 1.6×	209 0.9×	29	4.3k
Javier Capdevila United States	21	3.1k 1.1×	851 1.0×	268 0.5×	532 2.0×	238 1.0×	23	3.4k
Philip H. Crossley United States	10	2.7k 0.9×	679 0.8×	157 0.3×	421 1.6×	381 1.7×	11	3.0k
Brigitte Schuhbaur France	17	1.9k 0.7×	740 0.9×	110 0.2×	214 0.8×	163 0.7×	20	2.4k
John W. Saunders United States	24	2.0k 0.7×	573 0.7×	285 0.5×	389 1.5×	227 1.0×	41	2.6k

Countries citing papers authored by Robert D. Riddle

Since Specialization

Citations

This map shows the geographic impact of Robert D. Riddle's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Robert D. Riddle with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Robert D. Riddle more than expected).

Fields of papers citing papers by Robert D. Riddle

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert D. Riddle. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Robert D. Riddle. The network helps show where Robert D. Riddle may publish in the future.

Co-authorship network of co-authors of Robert D. Riddle

This figure shows the co-authorship network connecting the top 25 collaborators of Robert D. Riddle. A scholar is included among the top collaborators of Robert D. Riddle based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Robert D. Riddle. Robert D. Riddle is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

14 of 14 papers shown

O’Hara, F. Patrick, et al.. (2005). Zebrafish Lmx1b.1 and Lmx1b.2 are required for maintenance of the isthmic organizer. Development. 132(14). 3163–3173. 38 indexed citations

Riddle, Robert D. & Jonathan D. Pollock. (2003). Making connections: the development of mesencephalic dopaminergic neurons. Developmental Brain Research. 147(1-2). 3–21. 49 indexed citations

Ha, Alice S. & Robert D. Riddle. (2003). cBlimp-1 expression in chick limb bud development. Gene Expression Patterns. 3(3). 297–300. 19 indexed citations

Golden, Jeffrey A., et al.. (2000). The transcription factor Lmx1b maintains Wnt1 expression within the isthmic organizer. Development. 127(9). 1857–1867. 105 indexed citations

Riddle, Robert D. & Clifford J. Tabin. (1999). How Limbs Develop. Scientific American. 280(2). 74–79. 27 indexed citations

Marigo, Valeria, Ed Laufer, Craig E. Nelson, et al.. (1996). Sonic hedgehog regulates patterning in early embryos.. PubMed. 62. 51–60. 12 indexed citations

Riddle, Robert D., et al.. (1995). Induction of the LIM homeobox gene Lmx1 by WNT6a establishes dorsoventral pattern in the vertebrate limb. Cell. 83(4). 631–640. 372 indexed citations

Johnson, Randy L., Robert D. Riddle, & Clifford J. Tabin. (1994). Mechanisms of limb patterning. Current Opinion in Genetics & Development. 4(4). 535–542. 69 indexed citations

Johnson, Randy L., Robert D. Riddle, Ed Laufer, & Cliff Tabin. (1994). Sonic hedgehog: a key mediator of anterior-posterior patterning of the limb and dorso-ventral patterning of axial embryonic structures. Biochemical Society Transactions. 22(3). 569–574. 49 indexed citations

10.

Lim, Kim‐Chew, Hajime Ishihara, Robert D. Riddle, et al.. (1994). Structure and regulation of the chicken erythroid δ-aminolevulinate synthase gene. Nucleic Acids Research. 22(7). 1226–1233. 14 indexed citations

11.

Johnson, Randy L., Ed Laufer, Robert D. Riddle, & Cliff Tabin. (1994). Ectopic expression of Sonic hedgehog alters dorsal-ventral patterning of somites. Cell. 79(7). 1165–1173. 373 indexed citations

12.

Riddle, Robert D., Randy L. Johnson, Ed Laufer, & Cliff Tabin. (1993). Sonic hedgehog mediates the polarizing activity of the ZPA. Cell. 75(7). 1401–1416. 1920 indexed citations breakdown →

13.

Riddle, Robert D., Masayuki Yamamoto, & James Douglas Engel. (1989). Expression of delta-aminolevulinate synthase in avian cells: separate genes encode erythroid-specific and nonspecific isozymes.. Proceedings of the National Academy of Sciences. 86(3). 792–796. 146 indexed citations

14.

Pettigrew, James C., et al.. (1985). Identification of an anteriorly displaced meniscus in vitro by means of three-dimensional image reconstructions. Oral Surgery Oral Medicine Oral Pathology. 59(5). 535–542. 8 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact