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H. Allen Orr

evolutionary biologist

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 11, 2026
Entity authorityQ5628056
Source-derived summary

H. Allen Orr (born 1960) is an American evolutionary biologist specializing in the genetics of speciation and adaptation. He is the Shirley Cox Kearns Professor of Biology at the University of Rochester.

Education and career

Orr earned his bachelor's degree in biology and philosophy from the College of William and Mary and his Ph.D. in biology from the University of Chicago. At Chicago, Orr studied under Jerry Coyne. He performed postdoctoral research at the University of California, Davis.

Work

Orr is an evolutionary geneticist whose research focuses on the genetics of speciation and the genetics of adaptation, in particular on the genetic basis of hybrid sterility and inviability. How many genes cause reproductive isolation between species? What are the normal functions of these genes and what evolutionary forces drove their divergence? He studies these problems through genetic analysis of reproductive isolation between species of Drosophila.

In his adaptation work, Orr is interested in theoretical rules or patterns that might characterize the population genetics of adaptation.

Editorial summary

The public source identifies “H. Allen Orr” as evolutionary biologist. This brief keeps that definition visible, then builds a research path around Allen, evolutionary and biologist.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1960—that can be checked directly. The linked authority record independently contributes the date 1960-07-11. Its value is orientation rather than verdict, with Allen, evolutionary and biologist providing the first useful test.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 11, 2026. The linked authority identifier is Q5628056. VIAF identifies the subject as 85246667. The Library of Congress control number is nr2004024643. 2 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1960.

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Source & attribution

This entry incorporates text from H. Allen Orr” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.