| Family1 | Species1 | Family2 | Species2 | SCUS score | Similarity |
| Solanaceae | Nicotiana attenuata | Poaceae | Aegilops tauschii subsp. strangulata | 4.14 | Dis similar |
| Solanaceae | Nicotiana attenuata | Brassicaceae | Arabidopsis lyrata subsp. lyrata | 5.01 | Moderately similar |
| Solanaceae | Nicotiana attenuata | Brassicaceae | Arabidopsis thaliana | 4.86 | Dis similar |
| Solanaceae | Nicotiana attenuata | Fabaceae | Arachis duranensis | 9.17 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Fabaceae | Arachis hypogaea | 9.17 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Fabaceae | Arachis ipaensis | 9.17 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Cucurbitaceae | Benincasa hispida | 8.48 | Similar |
| Solanaceae | Nicotiana attenuata | Chenopodiaceae | Beta vulgaris subsp. vulgaris | 9.27 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Poaceae | Brachypodium distachyon | 4.63 | Dis similar |
| Solanaceae | Nicotiana attenuata | Brassicaceae | Brassica juncea | 4.73 | Dis similar |
| Solanaceae | Nicotiana attenuata | Brassicaceae | Brassica napus | 4.78 | Dis similar |
| Solanaceae | Nicotiana attenuata | Brassicaceae | Brassica oleracea var. oleracea | 4.73 | Dis similar |
| Solanaceae | Nicotiana attenuata | Brassicaceae | Brassica rapa | 4.79 | Dis similar |
| Solanaceae | Nicotiana attenuata | Fabaceae | Cajanus cajan | 8.77 | Similar |
| Solanaceae | Nicotiana attenuata | Brassicaceae | Camelina sativa | 4.96 | Dis similar |
| Solanaceae | Nicotiana attenuata | Brassicaceae | Capsella rubella | 5.24 | Moderately similar |
| Solanaceae | Nicotiana attenuata | Solanaceae | Capsicum annuum | 9.61 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Chenopodiaceae | Chenopodium quinoa | 9.52 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Fabaceae | Cicer arietinum | 9.06 | Highly Similar |
| Solanaceae | Nicotiana attenuata | Rutaceae | Citrus clementina | 9.41 | Highly Similar |