Diversity of Nicotiana species
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Date
2023
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach
Abstract
Description
The genus Nicotiana is one of the largest in the Solan-
aceae family and includes more than 80 species. The most well-
known and widespread species of the genus Nicotiana is tobacco
(Nicotiana tabacum), within which there are numerous cultivars.
Tobacco is one of the most important industrial plants in Poland
and worldwide. The great diversity within the genus makes it an
excellent source of variation in a narrowing gene pool and can be
used in breeding programmes. Studies of Nicotiana species also
concern mechanisms of polyploidisation and evolution. There
are also model species within the genus. However, in order to
make full use of the collected germplasm resources, a detailed
knowledge of the collection materials is necessary. While there
are various reports in the international literature describing spe-
cific issues, the aim of this paper is to indicate the diversity of
species in the genus Nicotiana as a whole on the basis of our own
research and available studies. This review covers the characteri-
sation of the genus Nicotiana in terms of origin and geographi-
cal distribution, as well as cytogenetic and molecular differences
between species. An important aspect is the presentation of the
morphological diversity of Nicotiana accessions and the variation
in the most important tobacco alkaloids. A very important issue is
the resistance of Nicotiana species to bacterial, fungal and viral
diseases, which allows their use in resistance breeding.
Keywords
Nicotiana, tobacco, morphological diversity, genetic
variation, collection
Citation
Polish Journal of Agronomy
2023, 52, 123–135