A. A. Schaffer

2.3k total citations · 1 hit paper
15 papers, 1.8k citations indexed

About

A. A. Schaffer is a scholar working on Molecular Biology, Genetics and Plant Science. According to data from OpenAlex, A. A. Schaffer has authored 15 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Molecular Biology, 6 papers in Genetics and 5 papers in Plant Science. Recurrent topics in A. A. Schaffer's work include Advances in Cucurbitaceae Research (4 papers), Machine Learning in Bioinformatics (3 papers) and Genomics and Phylogenetic Studies (3 papers). A. A. Schaffer is often cited by papers focused on Advances in Cucurbitaceae Research (4 papers), Machine Learning in Bioinformatics (3 papers) and Genomics and Phylogenetic Studies (3 papers). A. A. Schaffer collaborates with scholars based in United States, Israel and Vietnam. A. A. Schaffer's co-authors include Marina Petreikov, Stephen F. Altschul, Yuri I. Wolf, L. Aravind, Chris P. Ponting, Eugene V. Koonin, A. Avni, Joseph Riov, Arnon Dag and Isaac Zipori and has published in prestigious journals such as Nucleic Acids Research, Bioinformatics and PLANT PHYSIOLOGY.

In The Last Decade

A. A. Schaffer

15 papers receiving 1.8k 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.

Improving the accuracy of PSI-BLAST protein database searches with composition-based statistics and other refinements

2001 1.1k citations A. A. Schaffer Nucleic Acids Research profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
A. A. Schaffer United States	8	1.3k	466	176	134	133	15	1.8k
Michael Tognolli Switzerland	8	1.3k 1.0×	657 1.4×	153 0.9×	145 1.1×	51 0.4×	11	1.9k
Bong-Hyun Kim United States	6	1.1k 0.9×	181 0.4×	147 0.8×	132 1.0×	249 1.9×	8	1.4k
Boojala Vijay B. Reddy United States	23	1.9k 1.5×	365 0.8×	150 0.9×	278 2.1×	213 1.6×	41	2.6k
Mark D’Souza United States	15	1.7k 1.3×	254 0.5×	282 1.6×	246 1.8×	129 1.0×	29	2.1k
James N. D. Battey Switzerland	12	1.5k 1.2×	659 1.4×	172 1.0×	77 0.6×	227 1.7×	21	2.2k
Emmanuel Boutet Switzerland	8	1.1k 0.9×	527 1.1×	149 0.8×	156 1.2×	39 0.3×	11	1.7k
Scott Federhen United States	8	2.0k 1.6×	293 0.6×	255 1.4×	406 3.0×	149 1.1×	9	2.4k
Jean-François Taly Spain	10	904 0.7×	213 0.5×	163 0.9×	125 0.9×	132 1.0×	12	1.4k
Jaume Palau Spain	21	1.1k 0.9×	546 1.2×	186 1.1×	82 0.6×	111 0.8×	62	1.6k
Damien Lieberherr Switzerland	6	1.0k 0.8×	345 0.7×	141 0.8×	133 1.0×	37 0.3×	9	1.4k

Countries citing papers authored by A. A. Schaffer

Since Specialization

Citations

This map shows the geographic impact of A. A. Schaffer'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 A. A. Schaffer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites A. A. Schaffer more than expected).

Fields of papers citing papers by A. A. Schaffer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by A. A. Schaffer. 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 A. A. Schaffer. The network helps show where A. A. Schaffer may publish in the future.

Co-authorship network of co-authors of A. A. Schaffer

This figure shows the co-authorship network connecting the top 25 collaborators of A. A. Schaffer. A scholar is included among the top collaborators of A. A. Schaffer 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 A. A. Schaffer. A. A. Schaffer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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15 of 15 papers shown

1.

Avni, A., S. Lavee, Isaac Zipori, et al.. (2011). Role of carbohydrate reserves in yield production of intensively cultivated oil olive (Olea europaea L.) trees. Tree Physiology. 31(5). 519–530. 92 indexed citations

2.

Lewinsohn, Efraim, Vitaly Portnoy, Einat Bar, et al.. (2008). Sesquiterpene aroma biosynthesis in melon (Cucumis melo) rinds.. 249–256. 2 indexed citations

3.

Burger, Yosef, Yaakov Tadmor, Efraim Lewinsohn, et al.. (2008). Melon fruit color: more than just looks.. 529–534. 2 indexed citations

4.

Katzir, Nurit, Rotem Harel‐Beja, Vitaly Portnoy, et al.. (2008). Melon fruit quality: a genomic approach.. 231–240. 7 indexed citations

5.

Menotti‐Raymond, Marilyn, Victor A. David, A. A. Schaffer, et al.. (2007). Mutation in CEP290 Discovered for Cat Model of Human Retinal Degeneration. Journal of Heredity. 98(3). 211–220. 79 indexed citations

6.

Kann, Maricel G., et al.. (2004). A structure-based method for protein sequence alignment. Computer applications in the biosciences. 21(8). 1451–1456. 12 indexed citations

7.

Gao, Zhihong, Marina Petreikov, Yosef Burger, et al.. (2004). Stachyose to sucrose metabolism in sweet melon (Cucumis melo) fruit mesocarp during the sucrose accumulation stage.. 471–475. 4 indexed citations

8.

Burger, Yosef, Yelena Yeselson, Uzi Saar, et al.. (2004). Screening of melon (Cucumis melo) germplasm for consistently high sucrose content and for high ascorbic acid content.. 151–155. 3 indexed citations

9.

Portnoy, Vitaly, Yosef Burger, Efraim Lewinsohn, et al.. (2004). Isolation and characterization of fruit-related genes in melon (Cucumis melo) using SSH and macroarray techniques.. 491–497. 2 indexed citations

10.

Schaffer, A. A.. (2001). Improving the accuracy of PSI-BLAST protein database searches with composition-based statistics and other refinements. Nucleic Acids Research. 29(14). 2994–3005. 1123 indexed citations breakdown →

11.

Schaffer, A. A., Yuri I. Wolf, Chris P. Ponting, et al.. (1999). IMPALA: matching a protein sequence against a collection of PSI-BLAST-constructed position-specific score matrices. Bioinformatics. 15(12). 1000–1011. 253 indexed citations

12.

Schaffer, A. A. & Marina Petreikov. (1997). Sucrose-to-Starch Metabolism in Tomato Fruit Undergoing Transient Starch Accumulation. PLANT PHYSIOLOGY. 113(3). 739–746. 224 indexed citations

13.

Biesecker, Leslie G., S Kang, A. A. Schaffer, et al.. (1996). Exclusion of candidate loci and cholesterol biosynthetic abnormalities in familial Pallister-Hall syndrome.. Journal of Medical Genetics. 33(11). 947–951. 7 indexed citations

14.

Schaffer, A. A., et al.. (1991). Effect of Broomrape (Orobanche spp.) Infection on Sugar Content of Carrot Roots. HortScience. 26(7). 892–893. 10 indexed citations

15.

Schaffer, A. A., Charles D. Boyer, & Thomas J. Gianfagna. (1984). Genetic control of plastid carotenoids and transformation in the skin of Cucurbita pepo L. fruit. Theoretical and Applied Genetics. 68(6). 493–501. 7 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.

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