Yazdıç, Ferit Can; Açar, Mıkaıl; Cakilcioglu, Ugur; Tasar, Neslihan; Çelik, İbrahim Seyfettin

Centaurea L. is a genus that is systematically discussed and whose taxonomic issues need to be clarified in the light of molecular techniques developed in recent years. This study aims to contribute taxonomically in molecular terms by studying the morphological and phylogenetic relationships of Centaurea bingoelensis. This limited, endemic species grows naturally in the Bingöl province of Türkiye. A phylogenetic analysis based on the molecular marker ITS, which is the most preferred in evolutionary studies and found in nuclear DNA, has been proposed as a molecular marker of C. bingoelensis , an endemic plant in Türkiye, and has not yet been molecularly identified. For this purpose, PCR amplification of the fragment mentioned above was performed, followed by direct sequencing, analysis of nucleotide variation, and phylogenetic analysis with different species. The Centaurea species identified so far have been shown to have three main distinct major clades and the specific phylogenetic methods used (NJ, ML, MP) and the ITS nucleotide sequences analyzed revealed a close phylogenetic relationship between C. bingoelensis and C. spectabilis. For a more accurate phylogenetic classification of this species within the Asteraceae family, their close relationships were probed using similar sequences from the GenBank Database. Phylogenetic analysis of C. bingoelensis specimens using ITS sequences reveals their position in the Asteraceae family and molecular support for these specimens being new species as proposed. Although morphologically similar to C. fenzlii and C. obtusifolia, the remarkable point of our study is that C. bingoelensis is phylogenetically closer to C. spectabilis. This work has exciting implications for understanding the evolution and diversification of the genus Centaurea. In addition, the results of this study show that the samples identified as Centaurea species in Türkiye are still not entirely determined genetically.

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Açar, Mıkaıl; Satıl, Fatih

In this study, endemic and rare species have been determined in Akdağ (Dursunbey/Balıkesir). IUCN threat categories of endemic and rare species were presented in the region.The stress factors on the plants in the region were also determined in the study. Currently, there are 42 endemic and 2 rare plants in the area and the endemism rate in the area is 9.50%. According to the current IUCN; There are CR (Very Endangered) 1, EN (Endangered) 2, VU (Vulnerable) 7, NT (Endangered) 5, LC (Least Concern) 26 and DD (Data Deficient) 1 taxa in the categories. In the paper, the statuses of some taxa according to the new IUCN were also updated. It has also been stated that 44 taxa are under threat in the LC category at global level. In the research area, no serious threat factor has been identified in terms of endemic taxa. Although no serious threat factor has been identified in terms of endemic taxa in the research area, fire and livestock activities in the region are partly a threat for the endemic and rare taxa. In addition, various recommendations have been made in terms of threats

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Açar, Mıkaıl; Satıl, Fatih

Bu çalışma 2010-2011 yılları arasında B2 karesinde yer alan Akdağ (Balıkesir/ Dursunbey) florasını tespit etmek amacıyla yapılmıştır. Araştırma alanına özgü floristik bir araştırmanın yapılmamış olması ve alanın Akdeniz, Avrupa-Sibirya ve İran Turan fitocoğrafik bölge sınırlarının geçiş zonlarında bulunması bu çalışmanın yapılmasında temel etken olmuştur. Araştırma alanından 989 bitki örneği toplanmıştır. Taksonların değerlendirilmesi sonucunda; 53 familyaya ait 442 takson tespit edilmiştir. Çalışmanın sonucunda 72 taksonun B2 karesi için yeni kayıt olduğu tespit edilmiştir. Alanda bulunan taksonların 46 tanesi endemik olup, endemizm oranı %10,41' dir. Taksonların fitocoğrafik bölgelerine dağılışı; Akdeniz Elementi %19,6, Avrupa-Sibirya Elementi %17,2, İran-Turan Elementi %7,9 ile geniş yayılışlı ve bilinmeyenler %55,2 şeklindedir. En çok takson içeren ilk üç familya; Asteraceae (50), Fabaceae (50.) ve Lamiaceae (30) olarak belirlenmiştir. En çok takson içeren ilk 3 cins ise; Trifolium (12), Ranunculus (10) and Vicia (9), Veronica (9)' dır

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