Table I. XTH genes showing a minimum 2-fold change in expression based on Genevestigator data.
A selection of XTH genes based on expression data compiled from relevant light quality manipulation microarray experiments extracted from the Genevestigator Web site is shown.
| Gene Name | Arabidopsis Genome Initiative Identifier | High Petiole Expressiona | GUS Staining in Petioleb |
| AtXTH2 | At4g13090 | NA | |
| AtXTH3 | At3g25050 | NA | |
| AtXTH5 | At5g13870 | − | |
| AtXTH6 | At5g65730 | + | NA |
| AtXTH8 | At1g11545 | + | − |
| AtXTH10 | At2g14620 | NA | |
| AtXTH11 | At3g48580 | NA | |
| AtXTH12 | At5g57530 | − | |
| AtXTH13 | At5g57540 | NA | |
| AtXTH14 | At4g25820 | − | |
| AtXTH15 | At4g14130 | + | |
| AtXTH19 | At4g30290 | + | |
| AtXTH22 | At5g57560 | + | NA |
| AtXTH23 | At4g25810 | + | − |
| AtXTH24 | At4g30270 | + | − |
| AtXTH25 | At5g57550 | − | |
| AtXTH29 | At4g18990 | − | |
| AtXTH31 | At3g44990 | NA | |
| AtXTH32 | At2g36870 | + | − |
| AtXTH33 | At1g10550 | − |
a
Based on the data in Supplemental Figure S2, a gene is designated as highly expressed (+) in petioles or not.
b
Based on GUS staining in shaded petioles relative to white light controls: +, staining observed in shaded petioles of XTHpro::GUS reporter line plants; −, no staining; NA, no XTHpro::GUS lines available.