NXCI_047_D12_F NXCI (Nsf Xylem Compression wood Inclined) Pinus taeda cDNA clone NXCI_047_D12 5' similar to Arabidopsis thaliana sequence At4g18780 cellulose synthase catalytic subunit (IRX1) see http://mips.gsf.de/proj/thal/db/index.html, mRNA sequence