terms for roots [Leszek, Mary, Marty, Toby]

[Pankaj Jaiswal]

Sorry for a delayed response, we already have a term 'seminal root'. Its 
definition says : Root formed at the scutelar node of the embryo in some 
monocotyledonous plants.

Looks like we are all calling the same things as Toby suggested. NO need 
to change the ontology. If so is it okay for me to go ahead and add all 
the following as synonyms of 'seminal root'.

synonyms are:
	lateral seminal roots,
	secondary roots,
	scutellar nodal roots


Toby,

Is it okay if I assign a second parent 'nodal root' to a 'seminal root'. 
like

root
--isa--embryonic root
-----isa--seminal root
--isa--shoot borne root
-----isa--seminal root

Also the relationship between radicle and primary root is totally wrong. 
By our definition primary root develops from radicle, whereas the 
ontology says it IS_A instance of primary root. If you all agree I will 
make the changes. Accordingly only seminal root and radicle are the only 
two instances of the embryonic root. Primary root is a root that 
develops from the radicle which is a type of embryonic root.

root
--isa--embryonic root
-----isa--radicle
--------developsfrom--primary root
--isa--primary root

Pankaj





Marty Sachs wrote:

> Pankaj,
> 
> These roots are called a variety of names by different people (seminal 
> roots, lateral seminal roots, secondary roots, scutellar nodal roots, 
> etc).   As long as all the synonyms are given, I don't care which name 
> becomes the primary name.  However, I think that Leszek and I are 
> convinced that they originate from the scutellar node proper.  So, the 
> definition needs to be changed.  They are not 'root from node above 
> scutellum', they originate within the scutellar node.
> 
>     -Marty
> 
> At 2:50 PM -0400 6/22/06, Pankaj Jaiswal wrote:
> 
>> Leszek, Mary, Marty
>>
>> Can you come up with a final decision and let me know. I will add the 
>> terms accrodingly.
>>
>> If the 'root from node above scutellum' is called as 'lateral seminal 
>> root'. I would rather use the later as term name.
>>
>> We need definitions as well.
>>
>> Pankaj
>>
>>
>> Marty Sachs wrote:
>>
>>> Toby,
>>>
>>> This looks fine to me except for:
>>>
>>>> embryonic root
>>>> ---is-a primary root
>>>> ---is-a embryonic nodal root
>>>
>>>
>>>> ------is-a seminal root
>>>
>>>
>>>> ------is-a root from node above scutellum
>>>
>>>
>>>
>>> These roots which are also called 'secondary roots' or 'lateral 
>>> seminal roots' are actually from the scutellar node, not from a node 
>>> above the scutellum.
>>>
>>> See: http://aob.oxfordjournals.org/cgi/content/full/93/4/359/MCH056F1
>>>
>>> http://maize.agron.iastate.edu/images/corn/fig1.gif
>>>
>>> The crown (a.k.a, nodal) roots are the first ones that form above the 
>>> scutellem.
>>>
>>>         -Marty
>>>
>>> At 11:12 AM -0500 6/19/06, kellogge wrote:
>>>
>>>> Hi folks -
>>>>   Mary and I have had a discussion about terms for roots in maize, 
>>>> which has led to the suggestion of the following terms:
>>>>
>>>> Under each type of root, she has requested terms defining the 
>>>> central axis and also the lateral root.
>>>> An example for crown root is:
>>>> crown root
>>>> ---part-of central axis of crown root
>>>> ---part-of lateral root from crown root
>>>>
>>>> She has also run into the problem that grass embryos are well enough 
>>>> differentiated to have multiple nodes, such "nodal root" can apply 
>>>> within the embryo as well as on the germinated plant.
>>>> Here's a proposed solution:
>>>
>>>
>>>> embryonic root
>>>> ---is-a primary root
>>>> ---is-a embryonic nodal root
>>>> ------is-a seminal root
>>>> ------is-a root from node above scutellum
>>>
>>>
>>>>
>>>> shoot-borne root
>>>> ---is-a nodal root
>>>> ------is-a embryonic nodal root
>>>> ---------is-a seminal root
>>>> ---------is-a root from node above scutellum
>>>> ------is-a prop root
>>>> ------is-a crown root
> 
> 
> 


-- 
Pankaj Jaiswal
G-15, Bradfield Hall
Dept. of Plant Breeding and Genetics
Cornell University
Ithaca, NY-14853, USA

Ph. +1-607-255-3103 / 4199
fax: +1-607-255-6683