QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

First published online 19 October 2005
doi: 10.1242/dev.02067

This Article Figures Only Full Text Full Text (PDF) Supplementary Material All Versions of this Article: dev.02067v1 132/22/5021    most recent Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Related articles in Development Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Lee, J.-Y. Articles by Bowman, J. L. Search for Related Content PubMed PubMed Citation Articles by Lee, J.-Y. Articles by Bowman, J. L.

Recruitment of CRABS CLAW to promote nectary development within the eudicot clade

¹ Section of Plant Biology, University of California Davis, Davis, CA 95616, USA
² Department of Biology, Duke University, Durham, NC 27708, USA
³ Department of Plant Sciences, University of California Davis, Davis, CA 95616, USA

^* Author for correspondence (e-mail: jlbowman{at}ucdavis.edu)

Accepted 26 August 2005

Nectaries are secretory organs that are widely present in flowering plants that function to attract floral pollinators. Owing to diversity in nectary positions and structures, they are thought to have originated multiple times during angiosperm evolution, with their potential contribution to the diversification of flowering plants and pollinating animals being considerable. We investigated the genetic basis of diverse nectary forms in eudicot angiosperm species using CRABS CLAW (CRC), a gene required for nectaries in Arabidopsis. CRC expression is conserved in morphologically different nectaries from several core eudicot species and is required for nectary development in both rosids and asterids, two major phylogenetic lineages of eudicots. However, in a basal eudicot species, no evidence of CRC expression in nectaries was found. Considering the phylogenetic distribution of nectary positions and CRC expression analyses in eudicots, we propose that diverse nectaries in core eudicots share conserved CRC gene regulation, and that derived nectary positions in eudicots have altered regulation of CRC. As the ancestral function of CRC lies in the regulation of carpel development, it may have been co-opted as a regulator of nectary development within the eudicots, concomitant with the association of nectaries with reproductive organs in derived lineages.

Key words: Nectary, Carpel, CRABS CLAW, YABBY, Eudicot, Arabidopsis

Related articles in Development:

The evolution of sweet attraction

Development 2005 132: e2204. [Full Text]  

This article has been cited by other articles:

				A. Goldshmidt, J. P. Alvarez, J. L. Bowman, and Y. Eshed Signals Derived from YABBY Gene Activities in Organ Primordia Regulate Growth and Partitioning of Arabidopsis Shoot Apical Meristems PLANT CELL, May 1, 2008; 20(5): 1217 - 1230. [Abstract] [Full Text] [PDF]

				C. Fourquin, M. Vinauger-Douard, P. Chambrier, A. Berne-Dedieu, and C. P. Scutt Functional Conservation between CRABS CLAW Orthologues from Widely Diverged Angiosperms Ann. Bot., September 1, 2007; 100(3): 651 - 657. [Abstract] [Full Text] [PDF]

				Y. Ren, H.-F. Li, L. Zhao, and P. K. Endress Floral Morphogenesis in Euptelea (Eupteleaceae, Ranunculales) Ann. Bot., August 1, 2007; 100(2): 185 - 193. [Abstract] [Full Text] [PDF]

				E. M. Kramer, L. Holappa, B. Gould, M. A. Jaramillo, D. Setnikov, and P. M. Santiago Elaboration of B Gene Function to Include the Identity of Novel Floral Organs in the Lower Eudicot Aquilegia PLANT CELL, March 1, 2007; 19(3): 750 - 766. [Abstract] [Full Text] [PDF]

				E. A. Kellogg Progress and challenges in studies of the evolution of development J. Exp. Bot., October 1, 2006; 57(13): 3505 - 3516. [Abstract] [Full Text] [PDF]