Sürdürülebilir Kalkınma Amaçları

• 1

Yazarlar

• Arabaci, Turan(1)
• Açar, Mikail(1)
• Bagci, E.(1)
• Baser, Birol(1)
• Cakilcioglu, U.(1)
• Dirmenci, Tuncay(1)
• Hayta, S.(1)
• Hayta, Sukru(1)
• Karlıoǧlu Kılıç, Nurgül(1)
• Kiran, Y.(1)
• Kiran, Yasar(1)
• Martin, Esra(1)
• Paksoy, Mehmet Yavuz(1)
• Tasar, N.(1)
• Tasar, Neslihan(1)
• Yazici, Türker(1)
• Çelenk, Sevcan(1)
• Özcan, Taner(1)
• Özdemir, Emrah(1)
• Üzel, Devrim(1)

• MakaleYalnız künye2021Scopus SJRQ2/r/munzur/3817
  Homoploid hybrids of Origanum (Lamiaceae) in Turkey: morphological and molecular evidence for a new hybrid

  Arabaci, Turan; Çelenk, Sevcan; Özcan, Taner; Martin, Esra; Yazici, Türker; Açar, Mikail; Üzel, Devrim; Dirmenci, Tuncay

  In this study, three hybrids of Origanum (Lamiaceae) were examined in detail using morphological, karyological, palynological and molecular approaches. One of the three hybrids, O. × aytacii, is here described for the first time, and is compared with its putative parents, O. sipyleum and O. vulgare subsp. hirtum. In addition to morphological, karyological and palynological features, we also examined nuclear ribosomal DNA (ITS) sequences of O. × intermedium (O. onites × O. sipyleum), O. × intercedens (O. onites × O. vulgare subsp. hirtum) and their purported parental species that share the same area with the new hybrid. Pollen grains were hexacolpate and isopolar. The range of Polar/Equatorial ratio (P/E) of pollen for investigated taxa varied from 0.74 to 0.99. All investigated taxa are diploid with a chromosome number as 2n = 30. According to molecular results, O. × aytacii was the most polymorphic taxon. In addition, DNA sequences showed that O. × intercedens was more similar to O. vulgare subsp. hirtum than to O. onites, and O. × intermedium was more similar to O. onites than to O. sipyleum. Furthermore, O. onites and O. vulgare subsp. hirtum have many different ITS haplotypes, probably resulting from backcrossing with different individuals. Results obtained in this study demonstrate that hybridization has played a major role in the process of Origanum speciation.

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  AtıfScopus21·OpenAlex18

  İncele
• MakaleYalnız künye2019Scopus SJRQ2/r/munzur/3682
  Pollen morphology of three Chrysophthalmum schultz bip. (Asteraceae) species in Turkey

  Karlıoǧlu Kılıç, Nurgül; Paksoy, Mehmet Yavuz; Özdemir, Emrah

  The pollen morphology of three species of the genus Chrysophthalmum Schultz Bip. (Asteraceae) found in Turkey were studied with light microscope (LM) and scanning electron microscope (SEM). The three species were C. dichotomum Boiss. & Heldr., C. gueneri Aytac & Anderb., and C. montanum (DC.) Boiss. Pollen grains of the Chrysophthalmum species were identified as spheroidal and their apertures were shown to be tricolporate. The polar and equatorial axes, distance between colpus apices, length/width of colpus, length/width of porus, exine thickness, and length/base of spine were measured on the pollen grains. Pollen ornamentation of the three species was identified as echinate in LM and echinate-microperforate in SEM. These studied species were distinguished from each other using Kruskal–Wallis and Dunn’s test. The results indicate that pollen characteristics could be useful for distinguishing the examined species.

  AtıfWoS1·OpenAlex1

  İncele
• MakaleAçık Erişim2017Scopus SJRQ3/r/munzur/4218
  Comparative morphological, karyological and palynological investigations of three endemic Centaurea L. species (Asteraceae) in Turkey

  Hayta, Sukru; Tasar, Neslihan; Kiran, Yasar; Baser, Birol

  Centaurea derderiifolia Wagenitz., Centaurea drabifolia Sm. subsp. floccosa (Boiss.) Wagenitz & Greuter and Centaurea kotschyi (Boiss. & Heldr.) Hayek var. floccosa (Boiss.) Wagenitz, which are endemic taxa from Turkey belonging to Centaurea sect. Cheirolepis, were subjected to morphological, karyological and palynological investigations. The somatic chromosome numbers, pollen morphology and detailed morphometric properties were examined. The somatic chromosome numbers were determined as 2n = 2x = 36 in C. derderiifolia, C. kotschyi var. floccosa, and C. drabifolia subsp. floccosa. Karyotype analysis indicated that chromosomes of these Centaurea taxa generally have median region (m), submedian region (sm) and rarely median point (M) karyotypes. The pollen morphology of these endemic taxa of the genus Centaurea was investigated by light and scanning electron microscopy. The pollen grains of the examined species are mainly isopolar and radially symmetric, subprolate, tricolporate. Tectum ornamentation is scabrate and scabrate-perforate, amb triangular. The pollen grains of all taxa studied are 3-zonocolporate. The colpus is usually long, acute at ends and with smooth membrane. Pollen grains belonging to Cheirolepis section reveal homogeneity in their characters.

  AtıfWoS7·OpenAlex4

  İncele
• MakaleÖn baskısı açık2016Scopus SJRQ2/r/munzur/4135
  Morphological, karyological and palynological investigation of endemic Centaurea kurdica Reichardt from Turkey

  Hayta, S.; Tasar, N.; Kiran, Y.; Cakilcioglu, U.; Bagci, E.

  The purpose of this study was to determine the morphological, morphometrical, karyological and palynological features of the endemic Centaurea kurdica Reichardt species from East Anatolian region. Some morphological features of the species like morphology of capitula, involucra, involucral leaves (phyllaries) and achene have been investigated. The chromosome number of Centaurea kurdica was found as 2n = 18 and haploid karyotype formula 6m + 2sm + 1M. Metaphase chromosome length ranged from 5.81 to 3.91 mu m and the total haploid chromosome length was 41.09 mu m. The results of the light microscope investigation of pollen revealed that it is radially symmetrical, isopolar tricolporate and has spheroid-type pollen, and exine ornamentation was also determined as scabrate.

  AtıfWoS4·OpenAlex2

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