2-DE identification of differentially expressed proteins in stem xylems between male and female plants (10-year-old) in <i>Pistacia chinensis</i>.

<p>Stem was sampled in winter. A mixed tissue powder from three different male or female individuals was used for protein extraction. <b>A</b>, 2-DE profile of xylem proteins from female plants as reference. <b>B</b>, magnified gel regions containing spots X1-X3, accompanied by column configuration of relative abundance (generated by PDQUEST). Spot X2 failed to be identified by MS/MS. f = female; m = male.