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CYCLOIDEA Gene Expression across Dipsacales in Relation to Floral Symmetry
Author(s) -
Lim Aedric,
Thompson Veronica,
Berger Brent,
Ricigliano Vincent,
Howarth Dianella
Publication year - 2015
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.29.1_supplement.562.23
Subject(s) - petal , symmetry in biology , symmetry (geometry) , asymmetry , bilateral symmetry , biology , gene , evolutionary biology , botany , genetics , physics , geometry , mathematics , particle physics , mechanical engineering , engineering
The Dipsacales is an order of plants that exhibits a striking shift from radial symmetry in basal lineages like viburnum to strong bilateral symmetry in species like honeysuckle. We are interested in determining how multiple copies of the transcription factor CYCLOIDEA (CYC) may be linked to floral symmetry shifts across Dipsacales . We use quantitative reverse transcriptase PCR (qPCR) to compare relative expression levels of the major copies of CYC (CYC1, CYC2, CYC3) across Dipsacales in seven different species exhibiting radial symmetry, bilateral symmetry, or asymmetry. Our data suggest that radially symmetric species do not exhibit wide variation in expression among petals, whereas bilateral and asymmetric flowers have pronounced differences, especially in CYC2 copies Research supported by NSF IOS grant 1121301.