Title: Phylogenetic utility of the AP3/DEF K-domain and its molecular evolution in Impatiens (Balsaminaceae)
Authors: Janssens, Steven ×
Geuten, Koen
Viaene, Tom
Yuan, Yong-Ming
Song, Yi
Smets, Eric #
Issue Date: Apr-2007
Publisher: Academic press inc elsevier science
Series Title: Molecular phylogenetics and evolution vol:43 issue:1 pages:225-239
Abstract: APETALA3 (AP3)/DEFICIENS (DET) is a MADS-box transcription factor that is involved in establishing the identity of petal and stamen floral organs. The AP3/DEF gene lineage has been extensively examined throughout the angiosperms in order to better understand its role in floral diversity and evolution. As a result, a large number of cloned AP3/DEF orthologues are available, which can be used for the design of taxon specific primers for phylogeny reconstruction of close relatives of the group of interest. Following this reasoning, we investigated the phylogenetic utility of the two AP3/DEF paralogues (ImpDEF1 and ImpDEF2) that were recently identified in the genus Impatiens (Balsaminaceae). K-domain introns 4 and 5 of both AP3/DEF duplicates were amplified and sequenced for 59 Impatiens species. Phylogenetic analyses of the separated and combined ImpDEF1 and ImpDEF2 data sets result in highly congruent topologies with the previously obtained chloroplast atpB-rbcL data set. Combination of chloroplast and nuclear matrices results in a well-supported evolutionary hypothesis of Impatiens. Our results show that introns 4 and 5 in AP3/DEF-like genes are a valuable source of characters for phylogenetic studies at the infrageneric level. (c) 2006 Elsevier Inc. All rights reserved.
ISSN: 1055-7903
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Plant Systematics and Ecology Section - miscellaneous
Laboratory for Plant Systematics (-)
× corresponding author
# (joint) last author

Files in This Item:
File Description Status SizeFormat
Molecular_Phylog_Janssens_et_al_2007.pdf Published 1160KbAdobe PDFView/Open Request a copy

These files are only available to some KU Leuven Association staff members


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science