question on monocot flower development

[Jerrold I Davis]

Pankaj:

Through the years, it has often been hypothesized that various floral parts 
of monocots and dicots (generally perianth parts, as opposed to stamen or 
pistil) have arisen independently.  This view of things has been 
strengthened in recent years by the placement of various apetalous taxa as 
early-divering elements within the dicots.  However, there are also many 
potential cases of parallel gains and gain/loss/gain events among dicots 
alone, so I would be wary of any attempt to distinguish monocots from 
dicots while failing to address equally or more compelling cases within the 
dicots.

Jerry


At 11:16 AM 5/25/2004 Tuesday -0400, you wrote:

>Hi Everyone,
>
>I have a question on flower development in Monocots. The reason I am 
>asking this is because I am working with Gene Ontology group 
>(www.geneontology.org) to introduce the biological process that represent 
>a flower development. While doing this we need to instantiate whether,
>
>-It is possible to do most of the gene expression and phenotype annotation 
>using a generic term or do we need a monocot and dicot specific term?.
>-Is there a conceptual difference between the development of a monocot and 
>dicot flower and its parts? e.g. is there a difference between a monocot 
>and dicot anther/carpel/petal/sepal/tepal development.
>
>
>Thanks
>Pankaj


______________________________

Jerrold I Davis
Associate Professor

Department of Plant Biology
(office: 214 Plant Science Building)
(mailing address: 228 Plant Science Building)
Cornell University
Ithaca, New York 14853
U.S.A.

phone:   607-255-7980
fax:     607-255-5407
e-mail:  JID1 at cornell.edu
______________________________