Abstract Detail

Evolutionary Developmental Biology (Evo-Devo)

Tong, Jingjing [1], Howarth, Dianella [2].

Duplication and expression pattern of CYCLOIDEA-like genes in Campanulaceae.

Shifting between radially symmetrical flowers and bilaterally symmetrical (zygomorphic) flowers has evolved multiple times independently in Angiosperm evolution. Evidence from studies of Rosid and Asterid angiosperms indicate that CYCLOIDEA-like (CYC) genes, which belong to TCP gene family, play an important role in dorsal specific identify in the bilateral symmetrical flowers. Three core eudicot clades of CYC-like genes are identified in recent studies: CYC1, CYC2 and CYC3. This study focuses on Campanulaceae, which includes two main subfamilies, Campanuloideae, with radial symmetrical flowers, and Lobelioideae, with bilateral symmetrical flowers. We aim to clarify the duplications and expression of CYC-like genes between Campanuloideae and Lobeliodeae. At present, we generated CamCYC-like genes from both Campanuloideae and Lobeliodeae subfamilies. Our data indicate that CamCYC-2 genes have duplicated in the Lobeliodeae, correlated with a shift to bilateral symmetry in Campanulaceae. We aim with further work to utilize real time RT-PCR to examine expression patterns of different paralogs of CamCYC-like genes in Campanuloideae (radial flower) and Lobeliodeae (bilateral flower) subfamilies, and then we will examine the localization of CamCYC-like genes in radial and bilateral flowers in Campanulaceae family via in situ hybridization.

1 - St. John's University, 8000 Utopia Pkwy, Jamaica, NY, 11439, USA
2 - St. John's University, Biological Sciences, St. Albert Hall, 8000 Utopia Pkwy, Jamaica, NY, 11439, USA

Keywords:
floral symmetry
CYCLOIDEA
Campanulaceae
Campanuloideae
Lobelioideae.

Presentation Type: Poster
Session: P, Evolutionary Developmental Biology (Evo-Devo) Special Topic:Posters
Location: Exhibit Hall/Savannah International Trade and Convention Center
Date: Monday, August 1st, 2016
Time: 5:30 PM This poster will be presented at 6:15 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PEV006
Abstract ID:713
Candidate for Awards:Katherine Esau Award