Browsing by Author "Dogan, Gulden"

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Karyomorphological Analysis of Eight Allium L. (Amaryllidaceae) Species From Turkey
(Univ Tokyo Cytologia, 2022) Kiran, Yasar; Arikboga, Gulsah; Dogan, Gulden; Eroglu, Huseyin; Pinar, Suleyman Mesut
The chromosome numbers and karyotypes of eight species of the genus Allium distributed in Turkey were analyzed. These taxa are A. armerioides Boiss., A. orientale Boiss., A. stamineum Boiss., A. tuncelianum (Kollmann) Ozhatay, B.Mathew & Siraneci, A. subakaka Razyfard & Zarre, A. muratozelii Armagan, A. duma-nii Koyuncu & Kocyigit and A. colchicifolium Boiss. Four of them (A. armerioides, A. tuncelianum, A. mura-tozelii and A. dumanii) are endemic in Turkey. The chromosome numbers of all studied taxa were determined as 2n=2x=16, while A. dumanii had the chromosome number 2n=2x=16+2B. A basic number of x=8 was confirmed for all investigated species. Haploid chromosome lengths varied from 91.48 mu m (A. armerioides) to 176.16 mu m (A. colchicifolium) among species. Karyotype analysis indicated that Allium taxa generally are sym-metrical, consisting of metacentric and submetacentric chromosome pairs. Only A. stamineum has subtelocentric chromosomes. Satellites were observed in three species; A. tuncelianum, A. subakaka, and A. armerioides. The karyotypes of A. muratozelii and A. armerioides were determined for the first time in this study.
Karyomorphological Investigation of the Eight Species of the Muscari Genus Botryanthus Subgenus Growing in Turkey
(Univ Tokyo Cytologia, 2023) Kiran, Yasar; Yildirim, Leyla; Dogan, Gulden; Eroglu, Huseyin; Pinar, Suleyman Mesut
The chromosome numbers and karyotypes of eight species, the subgenus Botryanthus of the genus Muscari distributed in Turkey were analyzed. These taxa are M. adilii M.B. Guner & H. Duman, M. anatolicum Cowley & Ozhatay, M. bourgaei Baker, M. latifolium, J. Krik, M. inconstrictum Rech. f. M. microstomum P.H. Davis & D.C. Staurt, M. parviflorum Desf. and M. sandrasicum Karlen. Five of them (M. adilii, M. anatolicum, M. bourgaei, M. latifolium, M. sandrasicum) are endemic in Turkey. While the chromosome number of the examined taxa was generally determined as 2n= 2x= 18, the somatic chromosome number was determined as 2n= 4x= 36 in M. anatolicum and M. parviflorum. Haploid chromosome lengths varied from 26.00 mu m (M. adilii) to 101.74 mu m (M. parviflorum) among species. Karyotype analysis indicated that Muscari taxa generally have median point (M), median (m), submedian (sm), and subterminal (st) chromosomes. In addition, satellites were observed in two species, M. adilii and M. latifolium.
A Karyomorphological Study on the Genus Muscari Miller Growing in Turkey
(Univ Tokyo Cytologia, 2020) Kiran, Yasar; Pinar, Suleyman Mesut; Dogan, Gulden; Eroglu, Huseyin
The chromosome numbers and karyotypes of eight species of the genus Muscari distributed in Turkey were analyzed. These taxa are M. macrocarpum Sweet, M. racemosum Mill., M. aucheri (Boiss.) Baker, M. armeniacum Leichtlin ex Baker, M. sivrihisardaghlarensis Yildirimli & B. Selvi, M. discolor Boiss. & Hausskn, M. botryoides (L.) Mill. and M. neglectum Guss. Five of them (M. racemosum, M. aucheri, M. sivrihisardaghlarensis, M. discolor, and M. botryoides) are endemic in Turkey. The chromosome number of all studied taxa were determined as 2n=2x=18, while M. neglectum had the chromosome number of 2n=4x=36. Haploid chromosome lengths varied 24.94 mu m (M. armeniacum) to 119.85 mu m (M. racemosum) among species. Karyotype analysis indicated that Muscari taxa generally have a median point (M), median (m), and submedian (sm) chromosomes. In addition, only M. racemosum has one subterminal (st) chromosome pair. Satellites were observed in M. racemosum and M. botryoides. The karyotypes of M. sivrihisardaghlarensis was determined for the first time in this study.
A Karyomorphological Study on the Subgenus Leopoldia of the Genus Muscari Growing in Turkey
(Univ Tokyo Cytologia, 2020) Kiran, Yasar; Pinar, Suleyman Mesut; Dogan, Gulden; Eroglu, Huseyin
The chromosome numbers and karyotypes of 11 species the subgenus Leopoldia of the genus Muscari distributed in Turkey were analyzed. These taxa are M. comosum (L.) Miller, M. weissii Freyn, M. caucasicum (Griseb.) Baker, M. tenzeorum Tausch, M. babachii Eker & Koyuncu, M. erdalii Ozhatay & Demirci, M. longipes Boiss., M. massayanum Grunert, M. mirum Speta, M. elmasii Yildirim, and M. haradjiani Briq. ex Rech., and six of them (M. babachii, M. erdalii, M. massayanum, M. mirum, M. elmasii, M. haradjiani) are endemic species in Turkey. The somatic chromosome number of all studied taxa were determeined as 2n=2x=18. Haploid chromosome lengths varied 44.06 (M. massayanum) to 67.50 mu m (M. babachii) among species. Karyotype analysis indicated that Muscari taxa generally have median (m), submedian (sm) and subterminal (st) chromosomes. In addition, only M. comosum has one terminal (t) chromosome. Satellites were observed in five species, M. tenuiflorum, M. erdalii, M. longipes, M. mirum and M. haradjianii. This study is the first in terms of revealing the karyotypes of all taxa of subgenus Leopoldia on the genus Muscari.
Karyotype Analysis of Five Bellevalia Lapeyr. Species (Asparagaceae) From Turkey
(Univ Tokyo Cytologia, 2022) Eroglu, Huseyin; Pinar, Suleyman Mesut; Dogan, Gulden; Paksoy, M. Yavuz; Kiran, Yasar
The chromosome numbers and karyotypes of five species of the genus Bellevalia distributed in Turkey were analyzed. These taxa are B. anatolica B. Mathew & Ozhatay, B. fominii Woronow, B. kurdistanica Feinbrun, B. rixii Wendelbo, B. turcica Pinar & Eroglu. Three of them (B. anatolica, B. rixii and B. turcica) are endemic in Turkey. The chromosome numbers of all studied taxa were determeined as 2n=2x= 8. Haploid chromosome lengths varied from 57.78 mu m (B. fominii) to 68.17 mu m (B. anatolica) among species. Karyotype analysis showed that Bellevalia taxa generally have median (m), submedian (sm), and subterminal (st) chromo-somes, but not subterminal chromosomes in B. fominii species.
Karyotype Analysis of Five Endemic Bellevalia Species From Turkey
(Univ Tokyo Cytologia, 2024) Dogan, Gulden; Kiran, Yasar; Eroglu, Huseyin; Fidan, Mehmet; Pinar, Sueleyman Mesut
This study aimed to investigate the somatic chromosome numbers and morphometric properties of chromosomes in five endemic species of the genus Bellevalia Lapeyr. (Asparagaceae) from Turkey. The examined taxa are B. behcetii Pinar, Ero & gbreve;lu & Fidan, B. koyuncui Karabacak & Yildirim, B. pseudolongipes Karabacak & Yildirim, B. sasonii Fidan, and B. vuralii B.& Scedil;ahin & Aslan. Karyological techniques were employed to assess the chromosome number and morphology of the species. The genus Bellevalia is by a basic chromosome number x = 4. Chromosome numbers of the species were determined B. behcetii , B. koyuncui , B. pseudolongipes , and B. sasonii 2 n =2 x = 8, while B. vuralii 2 n =4 x = 16, was determined. Satellites were observed in two species; B. behcetii and B. vuralii . Using the Stebbins classification system, species were categorized as class 3A. Additionally, various parameters such as chromosome number, total chromosome length, relative length, arm ratio, centromere index, and centromere states, karyotype asymmetry values, and karyotype formula were determined. Notably, this study marks the first time that chromosome numbers of B. sasonii have been defined, contributing valuable new data to the systematics of these species.