Karyological studies on the solanaceae
2000
El-Nahas, A.I. (Ain Shams Univ., Cairo (Egypt). Dept. of Biological Sciences and Geology) | Khalifa, S.F. | Abou-El-Enain, M.M.
Comparative karyological studies for 23 taxa of the Solanaceae have been presented and their taxonomic aspects are discussed. It was concluded that the origin of the family is a taxon with basic chromosome number of x = 7 or 8 which gave rise to other taxa by aneuploidy and polyploidy. Nicotiana alata and Browallia viscosa are found to be less evolved than the other species studied. Concerning the total form percentage (TF%) a reverse trend towards increasing the degree of karyotype symmetry with advancing evolution is concluded.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by National Agricultural Research Centre