larval development

[Chris Mungall]

I think basically because one thing being a direct part of another thing
implies two distinct, distinguishable things. Nothing is a direct part of
itself.

So if we agree that larval development is_a post-embryonic development,
then it can't also be part_of

On Wed, 18 May 2005, J Clark wrote:

> Thanks Chris, I can see that the relationship could be is_a
> but I don't see why it can't be part_of. Is there a specific
> reason?
>
> Thanks,
>
> Jen
>
> Chris Mungall wrote:
>
> > is_a - because all instances of larval development are necessarily
> > instances of post-embryonic development
> >
> > On Wed, 18 May 2005, Jennifer I Clark wrote:
> >
> >
> >>Hi David,
> >>
> >>Does the part_of relationship have to mean 'physically part_of' then? I
> >>was thinking that the developmental time frame during which larval
> >>development takes place is part of the post-embryonic developmental time
> >>frame. I have cc'd Chris in case he has any views on this. I checked,
> >>and the documentation on the web site doesn't stipulate one way or the
> >>other.
> >>
> >>Thanks,
> >>
> >>Jen
> >>
> >>David Hill wrote:
> >>
> >>
> >>>I would make it a is_a of post-embryonic development, not a part_of.
> >>>Post-embryonic specifies a time, not a structure. There is no such
> >>>thing as a "post embryo". However, it is important to separate out the
> >>>timing of things especially when they have specific phases in for
> >>>example the embryo, the larva and the adult.
> >>>
> >>>David
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>J Clark wrote:
> >>>
> >>>
> >>>>Hi,
> >>>>
> >>>>It seems to me that 'larval development' ; GO:0002164 ought to be a
> >>>>child of 'post-embryonic development' ; GO:0009791.
> >>>>
> >>>>Is there any reason why it is not? They are currently siblings under
> >>>>'development'.
> >>>>
> >>>>If I was going to change this then should I make the relationship
> >>>>part_of, on the assumption that the terms represent
> >>>>
> >>>>'larval development' [of an organism or entity]
> >>>>
> >>>>and
> >>>>
> >>>>'post-embryonic development' [of an organism or entity]
> >>>>
> >>>>Thanks,
> >>>>
> >>>>Jen
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>
> >>>
> >>
>
>