mRNA-Seq of Quercus suber: embryo heart/torpedo stage
RNA-seq library preparation and sequencing was performed by Beijing Genomics Institute BGI (Hong-Kong, China). cDNA synthesis and paired-end library was prepared following the protocol of Illumina® TruSeq RNA Library Preparation kit and sequenced in one lane using the Illumina HiSeqTM 2000 platform, with a read length of 100nt. Raw reads were cleaned by removing adaptor sequences, empty reads and low quality sequences