Figure 1.
Genome map of Gossypium hirsutum mitochondrial genome.
The map shows both the gene map (outer circle) and repeat map (inner map). Genes exhibited on the inside of outer circle are transcribed in a clockwise direction, while genes on the outside of outer circle are transcribed in a reverse direction. The inner circle reveals the distribution of repeats in G. hirsutum mt genome. The yellow lines represent > = 1 kb repeats, the blue lines represent <100 bp repeat and the red lines represent repeat between 100 bp and 1 kb.
Figure 2.
Gene composition of different mitochondrial genomes.
The percentage of different genic sequence (A) and the length of different genic sequence (B).
Figure 3.
Gene order and existed clusters between the mitochondrial gene maps of Gossypium and other four angiosperms.
Gene order of the protein-coding and rRNA-coding genes, and the former's trans-spliced exons were based on the mt genome of G. hirsutum arranging from top to bottom. Genes of other four mt genomes were indicated by the corresponding numbers given to cotton genes listed on the left margin. Duplicate genes carried the same number. From left to right for (A) C. papaya, (B) R. communis, (C) A. thaliana and (D) Z. mays.
Table 1.
Information of gene clusters in Gossypium hirsutum mt genome.
Table 2.
Repeats (>100 bp) in Gossypium hirsutum mt genome.
Table 3.
Frequency distribution of repeat lengths in the mt genome of Gossypium hirsutum.
Table 4.
Information of chloroplast homologous sequences in plants.
Figure 4.
Linkage map between cp-homologous and mitochondrial sequences in higher plant mt genomes.
Figure 5.
Distribution map of tRNA genes in 25 plants.
Figure 5A shows distribution of tRNA genes in higher plant mt genomes: the yellow boxs represented native tRNA genes, the green cells represent cp-like tRNA genes; Figure B shows uptake of cp-like tRNA genes during different evolutionary period; Figure C shows loss of native tRNA genes during different evolutionary period. The three Oryza genomes: 1, Oryza rufipogon; 2, Oryza sativa subsp indica; 3, Oryza sativa subsp japonica. The two Beta genomes are: 1, Beta vulgaris subsp maritima; 2, Beta vulgaris subsp vulgaris.
Table 5.
Numbers of synteny gene clusters across 25 plant mt genomes.
Figure 6.
Distribution of conserved gene clusters.
Table 6.
Distribution of closely linked clusters in Gossypium hirsutum and other plant mt genomes.
Figure 7.
Phylogenetic trees of 21 respiratory related genes.
The ML tree (A) and the NJ tree (B). Genes used were listed in Table S4, including 17 respiratory complex genes and four cytochrome c biogenesis genes.
Figure 8.
NCBI common tree of 25 analyzed species.