| Family1 | Species1 | Family2 | Species2 | SCUS score | Similarity |
| Solanaceae | Nicotiana attenuata | Rutaceae | Citrus sinensis | 9.43 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Cucurbitaceae | Cucumis melo | 8.28 | Similar |
| Solanaceae | Nicotiana attenuata | Cucurbitaceae | Cucumis sativus | 8.39 | Similar |
| Solanaceae | Nicotiana attenuata | Cucurbitaceae | Cucurbita maxima | 7.57 | Similar |
| Solanaceae | Nicotiana attenuata | Cucurbitaceae | Cucurbita moschata | 7.39 | Similar |
| Solanaceae | Nicotiana attenuata | Cucurbitaceae | Cucurbita pepo subsp. pepo | 7.35 | Similar |
| Solanaceae | Nicotiana attenuata | Asteraceae | Cynara cardunculus var. scolymus | 6.55 | Moderately similar |
| Solanaceae | Nicotiana attenuata | Apiaceae | Daucus carota subsp. sativus | 9.44 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Malvaceae | Durio zibethinus | 9.13 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Brassicaceae | Eutrema salsugineum | 4.56 | Dis similar |
| Solanaceae | Nicotiana attenuata | Fabaceae | Glycine max | 8.61 | Similar |
| Solanaceae | Nicotiana attenuata | Fabaceae | Glycine soja | 8.63 | Similar |
| Solanaceae | Nicotiana attenuata | Malvaceae | Gossypium arboreum | 9.03 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Malvaceae | Gossypium hirsutum | 9.03 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Malvaceae | Gossypium raimondii | 8.95 | Similar |
| Solanaceae | Nicotiana attenuata | Asteraceae | Helianthus annuus | 5.35 | Moderately similar |
| Solanaceae | Nicotiana attenuata | Malvaceae | Herrania umbratica | 9.04 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Euphorbiaceae | Hevea brasiliensis | 8.40 | Similar |
| Solanaceae | Nicotiana attenuata | Poaceae | Hordeum vulgare | 4.64 | Dis similar |
| Solanaceae | Nicotiana attenuata | Euphorbiaceae | Jatropha curcas | 9.31 | Highly Similar |