BMC Genomics 2009, 10:295 http://www.biomedcentral.com/1471-2164/10/295 Table 4: Summary of the 20 most abundant genes expressed in B. napus seeds at 23 days after pollination (DAP) based on LongSAGE data analysis. Rank A. thaliana locus No. of matched Brassica ESTs at 1e-6 No. of different tags matched to Brassica ESTs Mean tag count per locus Frequency of tag counts (%, normalized) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 AT5G45890 AT5G50260 AT3G48350 AT5G38195 AT1G48750 AT3G20210 AT2G12465 AT4G32110 AT3G04120 AT5G37474 AT2G14846 AT4G21960 AT5G60390 AT4G32105 AT1G58055 AT1G04645 AT1G05850 AT1G08830 AT4G12960 AT4G21650 4,452 109 14 1,640 8 630 160 852 814 35 191 1,312 2,771 79 23 502 426 410 351 53 44 15 7 36 4 13 11 20 30 10 13 16 30 13 5 11 11 14 6 8 772 320 299 263 209 156 134 127 124 120 118 118 113 109 100 97 96 95 93 92 1.590 0.660 0.615 0.541 0.430 0.323 0.275 0.263 0.256 0.247 0.244 0.243 0.233 0.225 0.206 0.200 0.198 0.196 0.191 0.189 Description of matched A. thaliana gene locus SAG12 (SENESCENCE- ASSOCIATED GENE 12); cysteine-type peptidase cysteine proteinase, putative cysteine proteinase, putative protease inhibitor/seed storage/lipid transfer protein (LTP) family protein protease inhibitor/seed storage/lipid transfer protein (LTP) family protein DELTA-VPE (delta vacuolar processing enzyme); cysteine-type endopeptidasee LCR50 (Low-molecular-weight cysteine-rich 50) transferase, transferring glycosyl groups GAPC (GLYCERALDEHYDE-3- PHOSPHATE DEHYDROGENASE C SUBUNIT) Encodes a defensin-like (DEFL) family protein protease inhibitor/seed storage/lipid transfer protein (LTP) family proteinperoxidise PRXR1 (peroxidase 42); peroxidase elongation factor 1-alpha/ EF-1-alpha Galactosyltransferase Encodes a defensin-like (DEFL) family protein self-incompatibility protein- related POM1; chitinase CSD1 (copper/zinc superoxide dismutase 1) gamma interferon responsive lysosomal thiol reductase family protein/ GILT subtilase family protein Page 6 of 16 (page number not for citation purposes)