1. Berbeć A, Doroszewska T (1981) Investigations of the interspecific hybrid Nicotiana amplexicaulis Burbidge × Nicotiana tabacum L. Genetica Polonica 22:197–207
2. Burns JA (1964) A technique for making preparations of mitotic chromosomes from Nicotiana flowers. Tob Sci 8:1–2
3. Chaplin JF, Mann TJ (1961) Interspecific hybridization, gene transfer and chromosome substitution in Nicotiana. N. Carolina State Coll Agr Exp Sta Tech Bul 145:1–31
4. Chase MW, Knapp S, Cox AV, Clarkson JJ, Butsko Y, Joseph J, Savolainen V, Parokonny AS (2003) Molecular systematics, gish and the origin of hybrid taxa in Nicotiana (Solanaceae). Ann Bot 92:107–127
5. Clarkson JR, Symon DE (1991) Nicotiana wuttkei (Solanaceae), a new species from north-eastern Queensland with an unusual chromosome number. Austrobaileya 3(3):389–392