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American Journal of Botany 92(8): 12841293. 2005. DUPLICATION OF FLORAL REGULATORY GENES IN
 

Summary: 1284
American Journal of Botany 92(8): 12841293. 2005.
DUPLICATION OF FLORAL REGULATORY GENES IN
THE LAMIALES1
JAN E. AAGAARD,2,5
RICHARD G. OLMSTEAD,3
JOHN H. WILLIS,4
AND
PATRICK C. PHILLIPS2
2
Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403 USA; 3
Biology Department,
University of Washington, Seattle, Washington 98195 USA; and 4
Department of Biology, Duke University, Durham,
North Carolina 27708 USA
Duplication of some floral regulatory genes has occurred repeatedly in angiosperms, whereas others are thought to be single-copy
in most lineages. We selected three genes that interact in a pathway regulating floral development conserved among higher tricolpates
(LFY/FLO, UFO/FIM, and AP3/DEF) and screened for copy number among families of Lamiales that are closely related to the model
species Antirrhinum majus. We show that two of three genes have duplicated at least twice in the Lamiales. Phylogenetic analyses of
paralogs suggest that an ancient whole genome duplication shared among many families of Lamiales occurred after the ancestor of

  

Source: Aagaard, Jan - Department of Genome Sciences, University of Washington at Seattle
Olmstead, Richard - Department of Biology, University of Washington at Seattle
Phillips, Patrick - enter for Ecology and Evolutionary Biology & Department of Biology, University of Oregon

 

Collections: Biology and Medicine; Environmental Sciences and Ecology