Fig. 1
From: Transcriptome profiling of tobacco (Nicotiana tabacum) pollen and pollen tubes
Tobacco male gametophyte transcriptome sequencing and assembly: overview. a Density plot of the 454 sequencing read length after filtering and trimming adapters. b Density plot of the length of de novo assembled unigenes. c Histogram of the sequencing coverage of the assembled unigenes. Coverage values greater than 30× have been binned. d Density scatterplot showing the relationship between unigene length and coverage. Points with a high local density are darker