The comparison of four mitochondrial genomes reveals cytoplasmic male sterility candidate genes in cotton

BMC Genomics

Table 5 The unique sequences in 2074A and 2074S compared with 2074B

No.	Location^a	Length(bp)	Joint of syntenic regions	Predicted ORF^b	Identity sequences^d
U1	1–5156	5156	S1	Aorf1, Aorf2, Aorf3; Sorf1, Sorf2, Sorf3	2316–2885, 3107–3879 Carica papaya mitochondrion.
U2	16,918-17,305	388	S2-S3		236–379 Citrullus lanatus mitochondrion, Beta vulgaris subsp. 5 aponica genotype male-sterile E mitochondrion.
U3	143,667–151,556 (143,674-151,564)	7890	S6, S5-S7	Aorf7, Sorf7	2888–3734, 7191–7409, 6160–6348 Vigna 5 aponic mitochondrion, Malus x domestica mitochondrion, Beta vulgaris subsp. 5 aponica genotype male-sterile G mitochondrion.
U4	237,227- 238,728 (237,182–238,681)	1502	S10		893–1502, 413–720, Phoenix dactylifera mitochondrion, Nicotiana tabacum mitochondrion.
U5^c	438,450–457,430 (443,399-457,334)	18,981 (13936)	S14, S13-S15	Aorf18, Aorf19, Aorf20, Aorf21, Aorf22; Sorf17, Sorf16, Sorf18, Sorf19, Sorf20, Sorf21	6486–7727, G. hirsutum clone MX008C17-jmb, 5270–5431, 5610–5890, 10,317–11,602, 12,127–12,482 Mimulusguttatus mitochondrion; 2286–2703 unknown chloroplastid sequence. 15,875–18,884 O. berteriana mtDNA for rps3 and rpl16.
U6	665,761 -668,584 (665,642-668,464)	2824	S22	Aorf29; Sorf30	565–857, 1918–2188, 879–1159, Phoenix dactylifera mitochondrion, Lotus 5 aponicas strain MG-20 mitochondrion.

Note. –^a figures in brackets denote the sites in 2074A mitogenome; ^bthere are 5 ORFs predicted in U5; ^cU5 is 13936 bp in 2074A, and is longer 5148 bp at 3’end sequence in 2074S ^dthe identity is more than 80%, the figures denote the sites of alignment fragments

ISSN: 1471-2164