title: GSM3937584: 14.1 r3 mRNA; Populus trichocarpa; RNA-Seq
library_construction_protocol: Total RNA was extracted from leaf tissue in each branch using the Direct-zol RNA MiniPrep Plus kit (Zymo Research) with Invitrogen's Plant RNA Reagent. Strand-specific RNA-seq libraries were constructed using the TruSeq Stranded mRNA LT kit (Illumina) following the manufacturer's instructions.