SAM restructuring suggestion

[Felipe Zapata]

what a nice way to point out what has been a recurrent point of  
disagreement on the construction/conceptualization/use of POC:

> I think it is a big mistake to try and use the Plant Ontologies to  
> describe every mutant phenotype- its just not possible.

Thanks Leonore,

F


>
>
> Leonore
>
>
>
> On 6/10/05, Pankaj Jaiswal <pj37 at cornell.edu> wrote:
>
> <http://www.plantontology.org/amigo/go.cgi? 
> action=plus_node&depth=1&search_constraint=terms&query=PO:00201482 >
>
>
> Refer to:
> http://www.plantontology.org/amigo/go.cgi? 
> view=details&show_associations=terms&search_constraint=terms&depth=0&q 
> uery=PO:0020148
>
> Looks like we need a specific instance of SAM, ie. "vegetative shoot
> apical meristem". The current term is too generic for curating
> vegetative SAM.
>
> The reason being, I am curating a lot of flowering time genes and many
> are involved in regulating the transition of vegetative SAM to
> reproductive SAM. This event is critical in  short-day or long-day  
> light
> response resulting in early/delayed flowering.
>
> Current structure is like follows:
>
>
> #  PO:0020148 : shoot apical meristem   ( 32 )
>
>      * PO:0000224 : central zone
>      * PO:0006362 : embryonic shoot apical meristem
>      * PO:0000229 : floral meristem
>      * PO:0000230 : inflorescence meristem
>      * PO:0009020 : meristem L1
>      * PO:0009021 : meristem L2
>      * PO:0009022 : meristem L3
>      * PO:0000225 : peripheral zone
>      * PO:0005039 : primary thickening meristem
>      * PO:0000226 : rib zone
>      * PO:0006306 : shoot procambium
> --------------------------------------------------
>
> Proposed
>
> #  PO:0020148 : shoot apical meristem   ( 32 )
>    i PO:new : vegetative shoot apical meristem
>      p PO:0000224 : central zone
>      i PO:0006362 : embryonic shoot apical meristem
>      p PO:0009020 : meristem L1
>      p PO:0009021 : meristem L2
>      p PO:0009022 : meristem L3
>      p PO:0000225 : peripheral zone
>      p PO:0005039 : primary thickening meristem
>      p PO:0000226 : rib zone
>      p PO:0006306 : shoot procambium
>    i PO:new : reproductive shoot apical meristem
>      i PO:0000229 : floral meristem
>      i PO:0000230 : inflorescence meristem
>
>
> PO:0020148 : shoot apical meristem
> Def: current
>      Meristem formed in the apex of the shoot, including meristems
> originating as axillary shoot meristems.
> Def: proposed
>      Meristem formed in the apex of the shoot or those originating as
> axillary and reproductive meristems.
>
> PO:new : vegetative shoot apical meristem
> Def: proposed
>         Copy the original SAM definition.
>
> PO:new : reproductive shoot apical meristem
> Def: proposed
>      Meristem formed in the apex of the shoot originating as
> inflorescence and or flower meristems.
>
> -Pankaj
>
>

..............
Felipe Zapata
University of Missouri St. Louis
Department of Biology
8001 Natural Bridge Rd.
St. Louis, MO 63121 USA
p.314.516.6200


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