Esra Martin

Stachys vuralii (Lamiaceae), a New Species from North Anatolia, Turkey

Stachys vuralii Yıldız, Dirmenci & Akçiçek (Lamiaceae), a new species of the section Eriostomum is described from north Anatolia, Turkey. Detailed illustrations and taxonomic comments are provided along with a table listing the differential characters to the closely related S. byzantina and S. thirkei. Delimitations towards S. byzantina and S. thirkei and existence of putative hybrids are discussed. A phylogenetic analysis using ITS of nuclear ribosomal DNA confirmed the status of S. vuralii as a distinct species. The geographical location of S. vuralii is also presented.

A taxonomic study of the genus Fibigia Medik. (Brassicaceae)

In this study, Purpureae A.Duran and O.Cetin sect. nov. is described under the genus Fibigia Medik . The taxa of the genus were revised under the sections Fibigia and Purpureae . Fibigia clypeata (L.) Medik was classified as F. clypeata (L.) Medik subsp. clypeata and subsp . anatolica A.Duran & Tustas subsp. nov., and Fibigia eriocarpa (DC.) Boiss. was rearranged as F. clypeata (L.) Medik subsp. clypeata var. eriocarpa in Turkish Flora. The infrageneric and subgeneric keys were revised. Seed and pollen surface ornamentations were studied by scanning electron microscopy (SEM). The pollens examined have tricolpate aperture type and reticulate surface ornamentation. Seed surface ornamentation was reticulate. The taxa of the genus Fibigia have a diploid chromosome number of 2n=16. Karyotype analyses of the taxa were carried out for the first time. It was found that each taxon differed in chromosome morphology. Key word s: Fibigia, morphology, pollen, scanning electron microscopy (SEM), new taxa, Turkey.

A New Species of Draba (Brassicaceae) from North Anatolia, Turkey

ABSTRACT Draba anatolica A. Duran & Dinç, a new species of Brassicaceae collected from Kastamonu province in North Anatolia, Turkey, is described and illustrated. The species grows on rocky crevices and stony slopes in Ilgaz Mountain National Park. It is related to D. siliquosa M. Bieberstein, from which it mainly differs in its densely stellate-pubescent fruit, the 10- to 20-flowered inflorescence, the stellate-pubescent stems with five to eight leaves, the petals 4.5–5 mm long and sparsely stellate-pubescent externally, and the pubescent, 8–10 mm, fruiting pedicel. The ecology, biogeography, and conservation status of the species are discussed. Fruit and seed coat surface micromorphology of D. anatolica are examined by SEM, and the chromosome number and morphology are determined, with 2n = 16.

Karyomorphological studies in seven taxa of the genus Salvia (Lamiaceae) in Turkey

In this study, the karyotypes of mitotic chromosomes were determined of seven taxa of Salvia (Lamiaceae) collected from their natural habitats in Turkey: S. viridis (2n = 16), S. candidissima subsp. occidentalis (2n = 20), S. sclarea, S. ceratophylla, S. chionantha (2n = 22), S. viscosa and S. verticillata subsp. amasiaca (2n = 32). The karyotype formulae were 5m+3sm in S. viridis, 2M+5m+3sm in S. candidissima subsp. occidentalis, 1M+10m in S. sclarea, 8m+3sm in S. ceratophylla, 7m+4sm in S. chionantha, 9m+5sm+2st in S. viscosa, and 15m+1sm in S. verticillata subsp. amasiaca by the karyotype image analysis system. Somatic chromosome numbers ranged from 2n = 16 to 2n = 32. The ideograms were drawn based on centromeric index and arranged in decreasing size order. The present results were compared with the previous cytological studies in the genus.

Cytotaxonomical study in five taxa of the genus Teucrium L. (Lamiaceae)

In this study, karyotypes of Teucrium sandrasicum O. Schwarz, T. brevifolium Schreb., T. divaricatum Sieber subsp. villosum (Celak.) Rech.f., T. flavum L. subsp. hellenicum Rech.f. and T. kotschyanum Poech taxa growing naturally in Turkey were determined. T. sandrasicum is endemic to Turkey. The squash method for preparation was used for chromosomal investigations. As a result, T. divaricatum subsp. villosum has a somatic chromosome number as 2n = 64 while T. flavum subsp. hellenicum and T. kotschyanum have 2n = 32 chromosomes and also T. sandrasicum and T. brevifolium have 2n = 30 chromosomes. The ideograms and detailed chromosome morphology measurements of the species were performed by the use of Image Analysis System (Bs200Pro). The research has made contribution to the taxonomic revision of the genus Teucrium in Turkey.

Contribution to the cytotaxonomic knowledge of 10 species of Klasea Cass. (Asteraceae) from Turkey

In the present study, karyotype analyses of 10 taxa belongs to the genus Klasea Cass. (Asteraceae) were conducted. Somatic chromosome numbers are not a distinctive character of classification of Klasea taxa. All of the taxa were counted as 2n = 30 chromosomes, except for Klasea radiata subsp. biebersteiniana (2n = 60). Although all the taxa have a chromosome number of 2n = 30, they could be differentiated by their karyotype formula and quantitative parameters of the karyotype. Karyotype analysis was performed by means of an Image Analysis System and karyotype asymmetry indices were measured. According to these parameters, karyological relationships among studied taxa were inferred.

Chromosome numbers of species of the genus Jurinea Cass. (Asteraceae) in Turkey

Abstract Chromosome numbers of 13 Jurinea species, collected from different localities in Turkey, were determined for the frst time. All the Jurinea species investigated were diploid with chromosome numbers counted as 2n = 34. The basic chromosome number of the genus was x = 17. In this study, polyploidy was determined in nine taxa of Jurinea. Polyploid cells were 2n = 4x = 68 and they were tetraploid. The mitotic metaphase plates were given all the taxa of Jurinea. The research has made contribution to the cytotaxonomic revision of the genus Jurinea in Turkey.

Karyological studies in some Glycyrrhiza (Fabaceae) taxa from Turkey

Chromosome number, size and morphology of five taxa of the genus Glycyrrhiza growing naturally in Turkey were investigated. Permanent slides were made by using the standard liquid nitrogen method. Karyotypes were determined using Image Analysis System (Bs200Pro). In addition, the karyotype asymmetry of each taxa was evaluated by different methods: TF%, AsK%, Rec and Syi, A1, A2, A, AI and Stebbins classification. Correlations between the karyotype asymmetries of the different taxa were calculated. Two different chromosome numbers were found in the studied taxa; 2n = 16 in Glycyrrhiza echinata, G. glabra, G. flavescens subsp. flavescens, G. flavescens subsp. antalyensis and 2n = 14 in G. asymmetrica. The karyological data were evaluated with the NTYSY software package and used to create a dendrogram. The results were compared with previous cytological data. Photos of the taxa in their natural environment are also presented.

Karyology of endemic Matthiola anchoniifolia Hub. -Mor. (Brassicaceae) in Turkey

In this paper, the karyological properties of an endemic plant for Turkey, Matthiola anchoniifolia Hub.-Mor. grown in the Sivas Province in Turkey, are studied. Karyotype was made on somatic metaphases using an Image Analysis System. The somatic chromosome number is determined as 2n = 12. The karyotype formula of this species consists of five median chromosome pairs and one submedian chromosome pair. The shortest chromosome length is 4.89 μm, the longest is 9.18 μm, and haploid chromosome length is 38.66 μm. Photographs were taken using a BX51 Olympus microscope. An ideogram of the species was drawn using an Image Analysis System.

Detailed chromosome measurements and karyotype asymmetry of some Vicia (Fabaceae) taxa from Turkey

ABSTRACT This study examined the detailed chromosome measurements and karyotype asymmetries of seven taxa in the genus Vicia. The taxa are V. articulata, V. cassubica, V. villosa subsp. villosa in sect. Cracca, V. noeana var. noeana, V. sativa subsp. sativa, V. peregrina in sect. Vicia and V. caesarea in sect. Ervum. V. cassubica, V. noeana var. noeana, V. sativa subsp. sativa, V. caesarea have 2n = 12 chromosomes. V. articulata, V. villosa subsp. villosa, V. peregrina have 2n = 14 chromosomes in somatic cells. Total chromosome lengths range between 2.93–4.99 µm in V. articulata, 2.09–4.73 µm in V. cassubica, 1.86–3.36 µm in V. villosa subsp. villosa, 4.23–6.05 µm in V. noeana var. noeana, 2.07–3.72 µm in V. sativa subsp. sativa, 4.32–7.21 µm in V. peregrina and 2.39–5.78 µm in V. caesarea. The detailed chromosome measurements, relative lengths, centromeric indexes and karyotype asymmetries are also given. V. articulata is the most symmetrical karyotype, while V. villosa subsp. villosa is the most asymmetrical karyotype in intrachromosomal asymmetry including parameters of MCA, AsK, TF, Syi, A1, and A. However, the asymmetrical karyotypes are different in interchromosomal asymmetries. While V. noeana var. noeana is the most symmetrical karyotype in CVCL, Rec, and A2. V. caesarea is the most asymmetrical karyotype in only CVCL and A2. Unlike all parameters, V. cassubica is the most asymmetrical karyotype in Rec value. The scatter diagrams are given between MCA–CVCL and Syi–Rec.