Table 2.

Number of transcripts in pollen estimated by different methods

Organism	Method	Estimate	Reference
Arabidopsis	Array	7,235	Honys and Twell [26]
Arabidopsis	Array	6,587	Pina et al. [27]
Sorghum	cDNA-AFLP	12,000	Pring and Tang [24]
Maize	R0t	24,000	Mascarenhas [29]
Maize	Array	10,500	This study