question on monocot flower development
Jerrold I Davis
jid1 at cornell.edu
Tue May 25 13:23:21 EDT 2004
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
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