Fig. 7From: Genome-wide identification of oil biosynthesis-related long non-coding RNAs in allopolyploid Brassica napusThe expression levels of conserved lncRNAs among B. napus, B. rapa, B. oleracea and A. thaliana. The conserved B. napus lncRNAs were divided into four levels based on their homologous sequence coverage (Level 1: 20–40%; Level 2: 40–60%; Level 3: 60–80%; Level 4: 80–100%)Back to article page