Table 3.

Phloem Transcripts Detected within RBP50-Based Ribonucleoprotein Complexes

Phloem Transcript Identity	Transcript Abundance
PP16-1	15
GAIP	9
SCARECROW-LIKE (SCL14P)	7
SHOOT MERISTEMLESS (STMP)	5
ETHYLENE RESPONSE FACTOR (ERFP)	5
Myb (MybP)	4

Total pumpkin phloem sap was used to coimmunopurify RNP complexes. mRNA contained within these RNP complexes was extracted, cloned, and sequenced. Note that in naming these transcripts, the letter P is used to designate them as being contained within the phloem translocation stream. Transcript abundance represents the cloning results from five independent co-IP experiments in which the isolated RNA was pooled for analysis. Data presented represent the number of times each transcript was identified from all 35 amplified colonies.