叶绿体基因组 ()结构 IRA IRB SSC: short single copy sequence LSC. long single copy sequence IR: inverted repeats Fig. 19- The chloroplast genome is a circle, divided by two inverted repeats into the short single copy sequence and long single copy sequence (GENES VI Fig24.3)二. 叶绿体基因组 • （一）结构 SSC IRA IRB SSC: short single copy sequence LSC:long single copy sequence IR: inverted repeats LSC Fig. 19- The chloroplast genome is a circle, divided by two inverted repeats into the short single copy sequence and long single copy sequence (GENES Ⅵ Fig24.3 )