Journal
CURRENT OPINION IN PLANT BIOLOGY
Volume 17, Issue -, Pages 22-27Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.pbi.2013.10.006
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Funding
- NSF [IOS 0720240, 1121005, EF-0412727]
- Ruth L Kirschstein National Research Service from National Institutes of Health [1 F32 GM096699]
- Division Of Integrative Organismal Systems
- Direct For Biological Sciences [1121005] Funding Source: National Science Foundation
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Flowers of the lower eudicot Aquilegia (columbine) possess morphological innovations, namely elaborate petal spurs and a fifth distinct organ identity, the staminodium, that are well suited to the investigation of key questions in developmental,evolution. The recent evolution of these characteristics combined with a growing set of genetic and genomic resources has provided insight into how the traits arose and diversified. The petal spur appears to represent a key innovation that diversified largely via modification of specific aspects of cell expansion. In the case of the staminodium, gene duplication has played a role in allowing a novel organ identity to be carved out of the traditional ABC program.
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