Parent Washington Navel Orange Callus cDNA Library UCRCS08-4

Vector: Lambda Uni-ZAP XR, excised phagemid; Site_1: EcoRI; Site_2: XhoI; Parent Washington navel orange embryogenic callus was established from undeveloped ovules of ca. 10 mm diameter young fruits under open pollination on Murashige-Skoog medium at 25(C with 16 h light in a tissue culture room. Embryogenic callus, globular and heart stage embryoids were pooled in approximately equal portions in RNAlater (Ambion), then RNA was extracted using TRIZOL Reagent (Invitrogen). Poly(A) RNA was purified from 500 microgram of total RNA using Qiagen Oligotex. A primary cDNA library was produced using a lambda ZAP XR cDNA Synthesis Kit (Stratagene). These steps were performed by Xinrong Ye (Roose lab, UC Riverside). One million pfu from the primary library were mass excised to produce a phagemid population by Raymond Fenton (Close lab, UC Riverside). Phagemids were plated, plasmid DNA purified, cDNA clones archived, and DNA sequences determined bi-directionally using an ABI3730 at DNA Landmarks (Landry, Hubert, Laforest, Landry, Ligonde). Chromatogram files were downloaded by FTP to UC Riverside (by Close), then processed at UC Riverside (by Wanamaker, Close lab) using the HarvEST pipeline (http://harvest.ucr.edu) to remove vector and cloning oligo sequences and various contaminants, and to trim to a high quality region. Sequences that retained a phred 17 region of at least 100 bases were assembled, then chimeras were removed following manual inspection of assemblies (Close, Roose, Wanamaker). Sequences that survived all removal steps were submitted to GenBank.