Browsing by Author "Çirpici, A"

Now showing 1 - 6 of 6
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    Karyological Studies in Some Species of the Genus Silene (Caryophyllaceae)
    Minareci, E; Yildiz, K; Çirpici, A
    Karyology of the 6 Silene species from Turkey was investigated. Diploid chromosome numbers and the basic chromosome number of the studied taxa were obtained as 2n=24 and x=12 respectively. The karyotype analysis of S. viscosa, S. eremitica, S. skorpilii and S. confertiftora were carried out for the first time. Also the chromosome numbers of S. eremitica and S. confertiflora were determined for the first time. The largest chromosomes were observed in S. otites and the smallest ones were observed in S. viscosa. S. otites shows the highest A(1) index. S. skorpilii represents the highest interchromosomal asymmetry coefficient (A(2)). The karyologic results oh the study and the analysis of chromosomal morphology of each taxon were shown as tables.
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    Pollen morphology of sections Siphonomorpha and Lasiostemones of the genus Silene from Turkey
    Yildiz, K; Dadandi, MY; Minareci, E; Çirpici, A
    The pollen morphology of 16 taxa belonging to the sections Siphonomorpha Otth and Lasiostemones Boiss. from the genus Silene L. (Caryophyllaceae) was examined via scanning electron microscopy (SEM). Pollen types among all of the examined taxa were spheroidal, ornamentations were generally microechinate-microperforate (punctate), but perforate in Silene viridiflora L., structures were mostly tectate but were observed to be semitectate only in S. viridiflora, the highest pore numbers were found in S. fruticosa L. and S. viridiflora, the lowest pore numbers were those of S. gigantea L. subsp. rhodopea (Janka) Greuter and S. marschallii C.A.Mey., and interpore distance was greatest in S. gigantea subsp. rhodopea and smallest in S. amana Boiss. The widest perforation was observed in S. Viridiflora, whereas the lowest value was observed in S. olympica Boiss. As a result of these detailed examinations, some Silene species with significant taxonomic problems were reviewed in terms of palynology, and suggestions are provided about their positions. S. viridiflora was determined to be the taxon with the most different pollen morphology according to general characters. According to pore number and perforation, the most advanced taxon was S. Viridiflora, while the most primitive taxa were found to be S. olympica, S. gigantea subsp. rhodopea, and S. olympica.
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    A karyotypic study on Silene sect. Sclerocalycinae in Turkey
    Yildiz, K; Minareci, E; Çirpici, A
    The karyology of fifteen taxa of Silene sect. Sclerocalycinae from Turkey has been investigated. Karyotype analyses has been carried out and the chromosome number of Silene caramanica, S. peduncularis, S. armena, S. laxa, S. swertiifolia, S. caesarea, S. sclerophylla, S. haradjianii and S. lycaonica have been determined for the first time. For all the taxa studied, the diploid chromosome number and the basic chromosome number were found to be 2n=24 and x=12, respectively. Except for S. chlorifolia and S. doganii, the karyomorphology of the taxa studied is here described for the first time. S. laxa was found to have the smallest chromosomes whereas the largest ones were observed in S. haradjianii. Silene chlorifolia had the highest A(1) index and S. bupleuroides subsp. bupleuroides had the highest interchromosomal asymmetry coefficient (A(2)).
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    Karyotypic study on Silene, section Lasiostemones species from Turkey
    Kemal, Y; Minareci, E; Çirpici, A
    Karyology of the eight taxa of section Lasiostemones from Turkey was investigated. Diploid chromosome numbers and the basic chromosome number of the studied taxa were obtained as 2n=24 and x=12 respectively. The karyotype analysis of studied taxa was carried out and chromosome number of S. capitellata, S. lasiantha and S. manissadjianii were determined at the first time. The largest chromosomes were observed in S. capitellala and the smallest ones were observed in S. isaurica. S. capitellata shows the highest A, index. S. olympica represents the highest interchromosomal asymmetry coefficient (A(2)). The karyologic results of the study and the analysis of chromosomal morphology of each taxon were shown as tables.
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    Silene nemrutensis (Caryophyllaceae), a new species from south-eastern Anatolia
    Yildiz, K; Çirpici, A; Dadandi, MY; Firat, M
    A new perennial species, Silene nemrutensis (Silene sect. Spergulifoliae, Caryophyllaceae), is described and illustrated from SE-Anatolia. A macromorphological comparison with the similar species S. arguta is given as well as the ultrastructure of the seeds and pollen grains. Original photographs, geographical distribution, habitat and IUCN conservation status are also provided.
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    Silene demirizii sp nov and S. marschallii subsp anamasi subsp nov (Caryophyllaceae) from Turkey
    Yildiz, K; Çirpici, A; Dadandi, MY
    Two new taxa of Silene L. (Caryophyllaceae) from Turkey, Silene demirizii K. Yildiz & Cirpici sp. nov. and Silene marschallii C. A. Meyer subsp. anamasi K. Yildiz & Dadandi subsp. nov. are described and illustrated. Their taxonomic positions are discussed and they are compared with allied taxa. The distributions of the new and closely related species are mapped. Pollen grain and seed coat ultrastructure of the new and allied taxa were examined by SEM.