MOESM4 of Working towards recalcitrance mechanisms: increased xylan and homogalacturonan production by overexpression of GAlactUronosylTransferase12 (GAUT12) causes increased recalcitrance and decreased growth in Populus BiswalAjaya AtmodjoMelani PattathilSivakumar AmosRobert YangXiaohan WinkelerKim CollinsCassandra MohantySushree RynoDavid TanLi Gelineo-AlbersheimIvana HuntKimberly SykesRobert TurnerGeoffrey ZiebellAngela DavisMark DeckerStephen HahnMichael MohnenDebra 2018 Additional file 4. Correlation between the total GAUT12.1 transcript expression and plant growth in P. deltoides PtGAUT12.1-OE transgenic and control lines. a Height and b radial diameter of 3-month-old greenhouse-grown poplar plants are plotted against the transcript expression level. Blue diamonds—WT; black diamonds—vector controls; red diamonds—PtGAUT12.1-OE lines (please note that on the graphs the WT blue diamonds may be obscured by the vector control black diamonds). n = 25 for WT, n = 10–15 for vector control and PtGAUT12.1-OE lines.