Table 6.
MtDNA segment | Sequence homology (%) of wheat mtDNA segment to: | Deduced origin of ctDNA- homologous wheat mtDNA | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Wheat ct genome | Mt genome of ten green plant species; | Prokaryote genome | |||||||||||||
No. | Size (bp) | Monocotyledon | Dicotyledon | Gymno- sperm | Bryophyta | Green alga | Cyano- bacterium (Pm) | α-Proteo- bacterium (Pu) | |||||||
Rice | Maize | Sorghum | Arabi- dopsis | Sugar beet | Tobacco | Moss | Liver- wort | ||||||||
1a | 54 | 83** | 98** | 100** | 100** | 98** | 100** | 100** | 96** | 91** | 85** | 93** | 85** | 76** | Prokaryoteb) |
2 | 77 | 82** | 100** | 100** | 100** | 97** | 100** | 97** | 97** | 96** | 96** | 37 | 27 | 71** | ″ |
12 | 793 | 67** | 100** | 99** | 99** | 94** | 94** | 94** | 91** | 86** | 80** | 76** | 60** | 74** | ″ |
18 | 116 | 96** | 98** | 97** | 98** | 38* | 44** | 44** | 45** | 43** | 41** | 37** | 53** | 37** | ″ |
19a | 27 | 100** | 100** | 100** | 100** | 85** | 81** | 81** | 74* | 81** | 81** | 70* | 82** | 82** | ″ |
20 | 46 | 85** | 100** | 100** | 100** | 63** | 50** | 37 | 46* | 57** | 48* | 48* | 93** | 85** | ″ |
24c) | 73 | 95** | 100** | 100** | 100** | 100** | 100** | 100** | 96** | 58** | 52** | 58** | 55** | 34 | ″ |
28 | 82 | 96** | 99** | 28 | 99** | 99** | 96** | 96** | 40* | 40* | 49** | 56** | 70** | 49** | ″ |
30a | 64 | 83** | 100** | 100** | 100** | 100** | 100** | 100** | 95** | 95** | 80** | 53** | 72** | 80** | ″ |
31c) | 45 | 89** | 96** | 53* | 100** | 47* | 49* | 56** | 58** | 53** | 62** | 67** | 67** | 47* | ″ |
40 | 177 | 72** | 100** | 99** | 100** | 93** | 96** | 95** | 91** | 84** | 85** | 72** | 58** | 31** | ″ |
41a | 1,932 | 76** | 86** | 98** | 99** | 91** | 91** | 85** | 78** | 70** | 69** | 58** | 77** | 77** | ″ |
43a | 3,145 | 76** | 99** | 99** | 99** | 84** | 90** | 80** | 73** | 69** | 67** | 54** | 78** | 76** | ″ |
45 | 65 | 98** | 77** | 85** | 77** | 78** | 78** | 95** | 77** | 82** | 82** | 74** | 86** | 82** | ″ |
46 | 86 | 99** | 100** | 100** | 100** | 88** | 87** | 87** | 55** | 47** | 67** | 71** | 71** | 62** | ″ |
47a | 59 | 80** | 100** | 100** | 100** | 100** | 100** | 100** | 98** | 93** | 93** | 86** | 76** | 85** | ″ |
48 | 65 | 82** | 100** | 100** | 100** | 94** | 95** | 94** | 94** | 62** | 62** | 78** | 82** | 83** | ″ |
51 | 39 | 82** | 95** | 97** | 97** | 97** | 95** | 97** | 95** | 87** | 38 | 87** | 69* | 54 | ″ |
52 | 43 | 81** | 100** | 100** | 100** | 98** | 100** | 100** | 95** | 93** | 81** | 65** | 49* | 40 | Green plant |
53a | 32 | 81** | 100** | 100** | 100** | 94** | 94** | 94** | 94** | 94** | 88** | 88** | 0 | 0 | ″ |
16 | 195 | 91** | 95** | 13 | 99** | 84** | 75** | 72** | 42** | 15 | 18* | 17* | 38** | 32** | Angiosperm |
29 | 61 | 95** | 100** | 38 | 100** | 41 | 87** | 95** | 30 | 26 | 34 | 38 | 39 | 41 | ″ |
36 | 32 | 97** | 100** | 100** | 100** | 91** | 75** | 91** | 53 | 63 | 56 | 63 | 56 | 53 | ″ |
37 | 30 | 83** | 87** | 87** | 87** | 83** | 70* | 83** | 40 | 50 | 53 | 43 | 63 | 53 | ″ |
17 | 220 | 80** | 97** | 99** | 96** | 12 | 15** | 13* | 12 | 10 | 10 | 10 | 19** | 12 | Monocotyledon |
22 | 58 | 91** | 97** | 100** | 100** | 47* | 33 | 40 | 34 | 29 | 26 | 31 | 34 | 34 | ″ |
34 | 120 | 87** | 100** | 51** | 97** | 18 | 19 | 27* | 23 | 18 | 20 | 20 | 22 | 25 | ″ |
3 | 445 | 78** | 62** | 39** | 39** | 7 | 7 | 5 | 7 | 6 | 6 | 6 | 15** | 12** | Cereald) |
4 | 69 | 96** | 93** | 30 | 93** | 33 | 35 | 46* | 35 | 29 | 39 | 36 | 38 | 43 | ″ |
21 | 32 | 97** | 91** | 59 | 53 | 38 | 59 | 69* | 63 | 47 | 50 | 47 | 53 | 53 | ″ |
33 | 135 | 94** | 17 | 21 | 97** | 17 | 21 | 18 | 13 | 13 | 13 | 16 | 20 | 16 | ″ |
35 | 370 | 84** | 96** | 6 | 95** | 6 | 5 | 7 | 6 | 5 | 6 | 6 | 40** | 9* | ″ |
38 | 54 | 98** | 41 | 96** | 37 | 35 | 31 | 43 | 35 | 44* | 30 | 33 | 39 | 30 | ″ |
39 | 4,319 | 98** | 3 | 98** | 1 | 1 | 34** | 37** | 1 | 1 | 29** | 3 | 6 | 4 | ″ |
42 | 1,833 | 100** | 3 | 64** | 34** | 4 | 9* | 12** | 2 | 3 | 3 | 3 | 14** | 10** | ″ |
49 | 67 | 90** | 22 | 31 | 100** | 30 | 31 | 24 | 28 | 37 | 28 | 24 | 30 | 27 | ″ |
5 | 34 | 91** | 44 | 62 | 62 | 50 | 62 | 50 | 53 | 50 | 44 | 50 | 59 | 56 | Wheat |
6 | 36 | 92** | 39 | 47 | 44 | 64 | 44 | 56 | 64 | 47 | 53 | 53 | 64 | 56 | ″ |
7 | 59 | 86** | 27 | 34 | 44* | 34 | 42 | 42 | 46* | 27 | 27 | 32 | 34 | 39 | ″ |
9 | 29 | 100** | 52 | 62 | 69* | 62 | 62 | 55 | 48 | 55 | 62 | 69* | 69* | 69* | ″ |
15 | 210 | 90** | 14* | 14* | 15** | 11 | 10 | 9 | 34** | 10 | 10 | 15** | 14* | 12 | ″ |
32 | 176 | 95** | 27** | 14 | 16* | 13 | 19** | 13 | 16* | 14 | 12 | 13 | 28* | 20** | ″ |
50 | 398 | 92** | 9* | 12** | 9* | 8 | 9* | 9* | 9* | 8 | 8 | 7 | 40** | 11** | ″ |
54 | 180 | 91** | 16* | 15 | 13 | 18** | 17** | 10 | 16* | 16* | 17** | 11 | 18** | 17** | ″ |
8 | 58 | 97** | 98** | 98** | 98** | 43 | 64** | 40 | 38 | 31 | 40 | 41 | 53** | 48* | Recurrent transfer |
14 | 446 | 100** | 4 | 7 | 8 | 4 | 6 | 64** | 4 | 4 | 6 | 4 | 32** | 6 | ″ |
23 | 53 | 89** | 49* | 36 | 89** | 38 | 38 | 25 | 79** | 34 | 32 | 53* | 43 | 43 | ″ |
25 | 189 | 88** | 13 | 14 | 14 | 12 | 9 | 88** | 11 | 8 | 14 | 10 | 13 | 12 | ″ |
26 | 172 | 91** | 15 | 17** | 13 | 12 | 12 | 88** | 16* | 17** | 16* | 15 | 27** | 14 | ″ |
27 | 105 | 96** | 21 | 19 | 17 | 23 | 20 | 88** | 21 | 16 | 22 | 18 | 23 | 21 | ″ |
11 | 1,110 | 98** | 61** | 47** | 47** | 26** | 26** | 46** | 25** | 46** | 30** | 26** | 53** | 24** | Undetermined |
13 | 526 | 87** | 88** | 20** | 20** | 28** | 20** | 19** | 16** | 16** | 23** | 26** | 28** | 12** | ″ |
Reference: Wheat ct-rbcL | |||||||||||||||
rbcL | 1,434 | 2e) | 96** | 92** | 94** | 34** | 1 | 2 | 75** | 1 | 2 | 1 | 81** | 2 | Recurrent transfer |
a) Sequence homology (%) = [No. matched nucleotides]/[Wheat mt-segment size (bp)] × 100. Significant sequence homology at the 5% and 1% levels of probability are shown by * and **, respectively.
b) Synonymous to the orthologous origin.
c) The indicated origin is inconsistent with the genes located.
d) “Cereal” means the occurrence of ctDNA transfer in cereals after divergence of the cereal from other groups of monocotyledon.
e) No sequence homology between the wheat ct-rbcL and any wheat mt segments.