Fig. 1

Ramie materials and transcriptome comparison strategy among samples. a Truncation of ramie shoots. The shoots were cut into three sections including top bud, elongating region (ER) stem and fully elongated region (FER) stem. The leaves were removed, and the ER and FER samples were collected by peeling the bark from the central woody column of the stem. b The strategy of DEG identification by comparing the transcriptomes between different samples. c Cross section of TB with 2 times magnification (a), 10 times (b). Scale bars were indicated respectively. ep: epidermal layer; Pp: primary phloem; Ca: cambia; Px: primary xylem. d Cross and lengthwise sections of ER (a and b) and FER (c and d) samples magnified 40 times. Scale bar represented 100 μm and is the same for a, b, c and d