الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 125 |  |  |
| | | from | 125 | | |
Abstract
1) The present investigations deal with karyosystematic studies or 10 genera and 18 species, belonging to Compositae - Lactuceae
2) Chromosome countings were carried out for all of the nvestigated taxa. Leontodon tuberosus has the lowest chromosome umber (2n=8), while the highest number of (2n=36) is recorded in
ne same chromosome number of (2n=18) as that of the cul tivated :ubsp. endi via.
3) Karyotype analyses for three species of Picris showed that asplenioides and P. strigosa are more similar to each other as o~ared with P. intiSTefolia.
j) In Reichardia tingitana, the chromosome numbers are different n two of the investigated varieties. In var. tingitana (2n=16). ile in val’. orientalis 2n=14.
5) Hedypnois cretica is a polymorphic species which enabled :tailed studies:
nromosome numbers in different populations have been elaborated .n details during the present study. The recorded chromosome ountes are 2n=12, 13, 15, 17 and 18.
b) PMC analysis for H. cretica. showed irregularity in the amount ,[the uni- and bivelents chromosomes.
c) The resuJ. ’ts o! PTQE~’!l.”’J ””~~””~ <;:,~”\S ~ ~ ~~ ~ ”\S ~ \..~~ ~\.. ”\.\.).~
.8 field plants 1. e. (22%) I F-mother plants produced progeny with arying chromosome numbers. The other 14 fie ld plants (78%) :roduced F-mother plants with uniform chromosome numbers.
6) Feulgen karyotype and standardized karyotype for 10 taxa was arried out with computer-assisted quant if icat ion program.
7) Chromosome groupings were statistically analysed by using o~uter program system SPSSX.
8) Giemsa Staining.; was .retica which had high
used for five taxa including Hedypnois heterochrol~tenic bands while Picris
·xhibi ted simi lar banding patterns with centromeric, proximl and erminal bands.