The chromosome numbers and karyotypes of five species the genus Iris distributed in Turkey were analyzed. These taxa are I. aucheri (Baker) Sealy, reticulata var. M. Bieb., persica L., peshmeniana Güner & T. Hall, sarii Schott ex Baker. Two them (I. sari peshmeniana) endemic Turkey. studied determeined as 2n=18 persica), 2n=20 sari), 2n=24 aucheri), 2n=36 reticulata). Haploid lengths varied fro...

trifolium species and cultivars are considered important forage crops iran , growing throughout the country. the present article considered the karyotypic details of trvulim taxa using multivariate statistical analysis. taxa studied included: trifolim restylinatum (six populations: shazand, soriyan, kordestan, harati, enaj and lordegan), t. repense, t, fragverm, t. prateme and t, alexandrinm. s...

chestnut-leaved oak (quercus castaneifolia c. a. mey) is one of the most important native oaks of iran distributed in the hyrcanian forests. the pure and mixed stands of it cover about 6.5% of these forests. the species represents morphological variations which have resulted in the description of several infraspecific taxa by different authors. eight taxa were recognized as subspecies and varie...

conclusions physicians should be aware of this rare site of metastasis. early diagnosis is of paramount importance in order to effectively prevent the significant morbidity this condition can cause if left untreated. introduction small cell carcinoma constitutes the most aggressive type of lung cancer, with the greatest propensity for early disseminated disease. although commonly neglected due ...

The formation of hybrids among closely related species has been observed in numerous plant taxa. Selection by pollinators on floral traits can act as an early reproductive isolating barrier and may be especially important when there is overlap in distribution and flowering time. In this study, we use Quantitative Trait Locus (QTL) mapping based on 293 codominant SNP markers in an F2 population ...

An iris based biometric recognition system provides identification of an individual based on a unique feature or characteristic possessed by that individual. Iris recognition is consider as the most reliable and accurate biometric identification system. In this paper we explore the performance of the iris based recognition system. We take iris image of ten different people and after segmentatio...