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논문 기본 정보

자료유형
학술저널
저자정보
Alireza Yavari (University of Tehran) Vahideh Nazeri (University of Tehran) Fatemeh Sefidkon (Research Institute of Forests and Rangelands) Mohammad Esmail Hassani (University of Tehran)
저널정보
한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.51 No.2
발행연도
2010.4
수록면
101 - 105 (5page)

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초록· 키워드

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Five populations of Thymus migricus Klokov & Desj.-Shost., which is endemic to Flora Iranica area, were studied karyologically. Included in the data set were the basic chromosome number, the ploidy level, the total length of the haploid chromosome complement (TLC) and five different measures of karyotype asymmetry. The basic chromosome number of the studied populations was obtained as x = 14. The presence of 28 chromosomes in Heris, Nazloo and Band populations and 56 chromosomes in Jolfa and Ghushchi populations corresponds to diploidy (2n = 2x = 28) and tetraploidy (2n = 4x = 56) levels, respectively. The size of mitotic chromosomes was very small and the mean length varied from 0.69 to 1.42 μm. The smallest chromosomes were observed in Ghushchi population and the largest in Heris population. Jolfa population had the largest total chromosome length and Nazloo population had the smallest value. In all populations, metacentric chromosomes were the most common whereas sub-metacentric chromosomes were rare. Karyotypic indices obtained for five populations revealed that the karyotypes were slightly asymmetrical. A1 index varied from 0.492 to 0.643, interchromosomal asymmetry index (A₂) ranged between 0.020 and 0.102 and Paszko’s asymmetry index (AI) ranged from 0.07 to 0.20. Heris and Jolfa populations were considered to indicate higher levels of karyotypic heterogeneity.

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Abstract
Introduction
Material and methods
Results
Discussion
Literature cited

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UCI(KEPA) : I410-ECN-0101-2010-525-003282767