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The Tribolium homeotic gene Abdominal is homologous to abdominal-A of the Drosophila bithorax complexThe Abdominal gene is a member of the single homeotic complex of the beetle, Tribolium castaneum. An integrated developmental genetic and molecular analysis shows that Abdominal is homologous to the abdominal-A gene of the bithorax complex of Drosophila. abdominal-A mutant embryos display strong homeotic transformations of the anterior abdomen (parasegments 7-9) to PS6, whereas developmental commitments in the posterior abdomen depend primarily on Abdominal-B. In beetle embryos lacking Abdominal function, parasegments throughout the abdomen are transformed to PS6. This observation demonstrates the general functional significance of parasegmental expression among insects and shows that the control of determinative decisions in the posterior abdomen by homeotic selector genes has undergone considerable evolutionary modification.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Stuart, J. J.
(USDA, US Grain Marketing Research Laboratory ARS, Manhattan, Kansas 66502)
Brown, S. J.
Beeman, R. W.
Denell, R. E.
Spooner, B. S.
Date Acquired
August 22, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Development (Cambridge, England)
Volume: 117
Issue: 1
ISSN: 0950-1991
Subject Category
Life Sciences (General)
Distribution Limits
Non-NASA Center
NASA Discipline Cell Biology

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