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Mutation and premating isolationWhile premating isolation might be traceable to different genetic mechanisms in different species, evidence supports the idea that as few as one or two genes may often be sufficient to initiate isolation. Thus, new mutation can theoretically play a key role in the process. But it has long been thought that a new isolation mutation would fail, because there would be no other individuals for the isolation-mutation-carrier to mate with. We now realize that premeiotic mutations are very common and will yield a cluster of progeny carrying the same new mutant allele. In this paper, we discuss the evidence for genetically simple premating isolation barriers and the role that clusters of an isolation mutation may play in initiating allopatric, and even sympatric, species divisions.
Document ID
Document Type
Reprint (Version printed in journal)
External Source(s)
Woodruff, R. C.
(Bowling Green State University Bowling Green, OH 43403, United States)
Thompson, J. N. Jr
Date Acquired
August 21, 2013
Publication Date
November 1, 2002
Publication Information
Publication: Genetica
Volume: 116
Issue: 2-3
ISSN: 0016-6707
Subject Category
Life Sciences (General)
Distribution Limits
Non-NASA Center
NASA Discipline Developmental Biology
Review, Tutorial
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