- Tytuł:
- Cytological investigation of Brazilian nightshade (Solanum seaforthianum Andr.)
- Autorzy:
- Jagatheeswari, D.
- Powiązania:
- https://bibliotekanauki.pl/articles/10894.pdf
- Data publikacji:
- 2014
- Wydawca:
- Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
- Tematy:
-
cytological investigation
Brazilian nightshade
Solanum seaforthianum
chromosome number
Solanaceae
karyotype - Opis:
- Solanum genus namely Solanum seaforthianum Andr. belongs to the Solanaceae family, and comprises only dioeciously species. These plants are distributed between 29º and 40º south. All species of this genus are diploid with chromosome numbers of 2n = 24, 28 and 30. According to literature, the basic chromosome number in this genus is x = 12, 14 and 15. Solanum genus with a chromosome complement of 2n = 30 has a symmetric karyotype with a median and sub median centromere position. Because ancestral species have a symmetric karyotype, it seems that x = 12 is the initial basic chromosome number in this genus and the x = 14 and x = 15 derived from x = 12. So it seems that diploid phenomena played an important role in evolution and speciation.
- Źródło:
-
International Letters of Natural Sciences; 2014, 10
2300-9675 - Pojawia się w:
- International Letters of Natural Sciences
- Dostawca treści:
- Biblioteka Nauki
Artykuł