Figure 1

Genomic structural variation and distribution of paired genes. The structural variations in the genomes and paired genes are shown. The circles represent (inner to outer) the LCT-KP214 GC-skew distribution, LCT-KP214 COG distribution, and the structural variations between LCT-KP214 and LCT-KP289, respectively. LCT-KP214 GC-skew distribution: a 1,000-bp sliding window was used on the genome of LCT-KP214, and the GC-skew was recorded in each window. GC-skew = (G-C)/(G + C); purple and green indicate positive and negative values, respectively. The junction between purple and green represents the potential transcription initiation site. LCT-KP214 COG distribution: the inner, second and third circles represent the COG functional distribution in LCT-KP214. Different functions are indicated by different colors, and the captions are listed on the right. Structural variations between LCT-KP214 and LCT-KP289: the circles indicate the genomic structural variation, syntenic regions and gene pairs in LCT-KP214 and LCT-KP289 (the genes located on the forward strand are indicated in sky blue, and the genes located on the reverse strand are indicated in orange). The outer circles represent LCT-KP214, and the inner circles represent LCT-KP289. The lines connecting the circles indicate paired genes in LCT-KP214 and LCT-KP289, and the different colors indicate structural variations, transfer elements and duplicated sequences.