Characterization of taxonomically related some Turkish oak (quercus l.) species in an isolated stand : a morphometric analysis approach

Download
2010
Aktaş, Caner
The genus Quercus L. is represented with more than 400 species in the world and 18 of these species are found naturally in Turkey. Although its taxonomical, phytogeographical and dendrological importance, the genus Quercus is still taxonomically one of the most problematical woody genus in Turkish flora. In this study, multivariate morphometric approach was used to analyze oak specimens collected from an isolated forest (Beynam Forest, Ankara) where Quercus pubescens Willd., Q. infectoria Olivier subsp. boissieri (Reuter) O. Schwarz and Q. macranthera Fisch. & C. A. Mey. ex Hohen. subsp. syspirensis (C.Koch) Menitsky taxa are belonging to section Quercus sensu stricto (s.s.) are found. Additional oak specimens were included in the analysis for comparison. Morphometric study was based on 52 leaf characters such as, distance, angle, and area as well as counted, descriptive and calculated variables. Morphometric variables were calculated automatically by use of landmark and outline data. Random forest classification method was used to select discriminating variables and predict unidentified specimens by use of pre-identified training group. The results of the random forest variable selection procedure and the principal component analysis (PCA) showed that the morphometric variables could distinguish the specimens of Q. pubescens and Q. macranthera subsp. syspirensis mostly based on the overall leaf size and number of intercalary veins while the specimens of Q. infectoria subsp. boissieri were separated from others based on lobe and lamina base shape. Finally, micromorphological observations of abaxial lamina surface have been performed by scanning electron microscope (SEM) on selected specimens which were found useful to differentiate, particularly the specimens of Q. macranthera subsp. syspirensis and its putative hybrids from other taxa.

Suggestions

Identification of demographic structure and population viability analysis of Gazella subgutturosa in Şanliurfa
Çobanoğlu, Aziz Emre; Kence, Meral; Department of Biology (2010)
Goitered gazelle (Gazella subgutturosa) is an Asian antelope species and it is classified as Vulnerable by IUCN. They have an economic, esthetic and cultural value; therefore, they had been hunted and domesticated for a long time. Additional human disturbance over years nearly led goitered gazelle populations in Turkey to extinction. Today in Turkey, only natural population of goitered gazelle lives in Şanlurfa. In this theses, demographic structure and population parameters of natural population goitered g...
The phylogenetic analysis of pinus nigra arnold subspecies pallasiana varieties with respect to non-coding trn regions of chloroplast genome
Güvendiren Gülsoy, Aysun Demet; Kaya, Zeki; Department of Biology (2009)
More than half of the Pinaceae is including in genus Pinus covers the large parts of vegetation of northern hemisphere. The Anatolian Black Pine is one of the subspecies of European Black Pine, growing naturally as a widespread mid elevation species of Taurus, western Anatolian and northern Anatolian Mountains of Turkey. Although it is disputed that there are 5 varieties of Anatolian black pine but three of these are well recognized. These are Pinus nigra subsp. pallasiana var. pallasiana, Pinus nigra Arnol...
Detection of species boundaries in the Rana Ridibunda complex of Southwestern Turkey using mitochondrial ND3 marker
Akın, Çiğdem; Bilgin, Cemal Can; Department of Biology (2007)
Water frogs are one of the most interesting vertebrate groups, showing great diversity and complexity in their reproductive modes, ecology and evolutionary relationships, and with many cryptic species due to high morphological similarity. For many decades, a single species, Rana ridibunda, has been suggested to exist in Turkey. However, the application of new morphometric, molecular and bioacoustic techniques has recently revealed the occurrence of several distinct water frog taxa in Turkey. In this study, ...
Mitochondrial dna (mtdna) haplogroup composition in Turkish sheep breeds
Yüncü, Eren; Togan, İnci Zehra; Department of Biology (2009)
In the present study, haplogroup composition of five native Turkish sheep breeds, (Karayaka, Akkaraman, Gökçeada, Dağlıç, Morkaraman) and two sheep breeds from neighboring countries (Herik from Iran, samples from Azerbaijan) were determined by single strand length polymorphism (SSCP) analysis of mitochondrial DNA (mtDNA) NADH dehydrogenase subunit 4 (ND4) region and restriction fragment length polymorphism (RFLP) analysis of mtDNA control (CR) region. Results of the SSCP and RFLP approaches were found to be...
Determination of polymorphism of pgm, hk, pgi, and g6pd in different developmental stages of honey bee (apis mellifera l.) and its relation with pgm activity and glycogen content
Yeni, Filiz; Kence, Meral; Department of Biology (2010)
In this study, three subspecies of Apis mellifera L. (A. m. caucasica, A. m. carnica, and A. m. syriaca) from different climatic regions were evaluated electrophoretically at ontogenetic level by means of four enzymes, namely Phosphoglucomutase (PGM), Hexokinase (HK), Phosphoglucose isomerase (PGI) and Glukose-6-phosphate dehydrogenase (G6PD). It is determined that only Pgm and Hk loci were polymorphic. Allele and genotype frequencies at Pgm locus changes seasonally whereas Hk locus does not exhibit seasona...
Citation Formats
C. Aktaş, “Characterization of taxonomically related some Turkish oak (quercus l.) species in an isolated stand : a morphometric analysis approach,” M.S. - Master of Science, Middle East Technical University, 2010.