Cytogenetic study of the genus Cousinia ( Asteraceae, section Serratuloideae ) in Iran
Genet. mol. biol
; 29(1): 117-121, 2006. ilus, tab
Article
in English
| LILACS
| ID: lil-424746
Responsible library:
BR26.1
ABSTRACT
Meiotic studies of ploidy level, chromosome paring and chiasma frequency were performed on 11 Cousinia (Asteraceae) species of the section Serratuloideae. The diploid number of the species studied was 2n = 2x = 24 and 26 so these species possess two different basic numbers (x = 12 or 13), a phenomenon common to other sections of the genus. The chromosome numbers of 9 species are reported here for the first time. When the 2n = 24 and 2n = 26 species were subjected to cluster analysis based on relative meiotic characters two different clusters were formed indicating their distinctness. Our data support the results obtained from morphometry, anatomy, pollen morphology and molecular studies of the genus Cousinia.
Full text:
Available
Collection:
International databases
Database:
LILACS
Main subject:
Asteraceae
/
Cytogenetics
Language:
English
Journal:
Genet. mol. biol
Journal subject:
Genetics
Year:
2006
Document type:
Article
Affiliation country:
Iran
Institution/Affiliation country:
Shahid Beheshti University/IR
/
Tehran University/IR