new subclasses of fruit formation stage

[planteome-user]

These are similar to the stages that were developed for whole plants, but groups like SGN really need to apply them to individual fruits. Includes a new stage for fruit initiation, which is probably not needed for whole plants.

Proposed terms:

fruit initiation stage (PO:0025503): A fruit formation stage (PO:0025501) that begins with the formation of a plant zygote (PO:0000423) that is contained in the fruit (PO:0009001) being studied and ends when the plant cells (PO:0009002) in the fruit begin to divide or expand.

Comment: The fruit initiation stage may begin without fertilization or formation of a plant zygote (PO:0000423) in cases of parthenocarpy, apomixis, or other hormone-induced conditions. This stage ends as soon as plant cells (PO:0009002) in a developing fruit begin to divide or expand and may be very brief. This stage is to be used for an individual fruit. For the development stage of a whole plant (PO:0000003), use whole plant fruit formation stage up to 10% (PO:0007032).

fruit size up to 10% stage (PO:0025504): A fruit formation stage (PO:0025501) that begins when the plant cells (PO:0009002) in a fruit (PO:0009001) begin to divide or expand, and ends when the fruit has reached 10% of its final size.

Comment: Succeeds a fruit initiation stage (PO:0025503) and proceeds a fruit size 10 to 30% stage (PO:0025505). This term can only be used if the final size of the fruit is known. This stage is to be used for an individual fruit. For the development stage of a whole plant (PO:0000003), use whole plant fruit formation stage up to 10% (PO:0007032).

fruit size 10 to 30% stage (PO:0025505): A fruit formation stage (PO:0025501) that spans the interval when a fruit (PO:0009001) has reached 10% to 30% of its final size.

Comment: Succeeds a fruit size up to 10% stage (PO:0025504) and proceeds a fruit size 30 to 50% stage (PO:0025506). This term can only be used if the final size of the fruit is known. This stage is to be used for an individual fruit. For the development stage of a whole plant (PO:0000003), use whole plant fruit formation stage 10 to 30% (PO:0007009).

fruit size 30 to 50% stage (PO:0025506): A fruit formation stage (PO:0025501) that spans the interval when a fruit (PO:0009001) has reached 30 to 50% of its final size.

Comment: Succeeds a fruit size 10 to 30% stage (PO:0025505) and proceeds a fruit size 50 to 70% stage (PO:0025507). This term can only be used if the final size of the fruit is known. This stage is to be used for an individual fruit. For the development stage of a whole plant (PO:0000003), use whole plant fruit formation stage 30 to 50% (PO:0007029).

fruit size 50 to 70% stage (PO:0025507): A fruit formation stage (PO:0025501) that spans the interval when a fruit (PO:0009001) has reached 50 to 70% of its final size.

Comment: Succeeds a fruit size 30 to 50% stage (PO:0025505) and proceeds a fruit size 70% to final size stage (PO:0025508). This term can only be used if the final size of the fruit is known. This stage is to be used for an individual fruit. For the development stage of a whole plant (PO:0000003), use whole plant fruit formation stage 50 to 70% (PO:0007007).

fruit size 70% to final size stage (PO:0025508): A fruit formation stage (PO:0025501) that spans begins when a fruit (PO:0009001) has reached 70% of its final size and ends when a fruit has reached its final size and a fruit ripening stage (PO:0025502) begins.

Comment: Succeeds a fruit size 50 to 70% stage (PO:0025507) and proceeds a fruit ripening stage. This term can only be used if the final size of the fruit is known. This stage is to be used for an individual fruit. For the development stage of a whole plant (PO:0000003), use whole plant fruit formation stage 70% to final size (PO:0007027).

Reported by: rlwalls2008

Original Ticket: obo/plant-ontology-po-term-requests/505