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Assessment of genetic diversity among and within Carthamus species using sequence-related amplified polymorphism (SRAP) markers

Plant Systematics and Evolution, August 2013, Volume 299, Issue 7, pp 1285-1294.

Niloofar Mokhtari, Mehdi Rahimmalek , Majid Talebi, Mojtaba Khorrami.


Due to precise evaluation of genetic diversity of Carthamus species, sixty-two genotypes consisting fifty-two from five wild (C. oxyacanthus M. Bieb, C. lanatus L., C. dentatus Vahl, C. boissieri Halácsy, C. glaucus M.B.) and ten from cultivated species (C. tinctorius L.) were selected for evaluation of the genetic diversity in Carthamus species. A total of 238 (81.2 %) polymorphic bands were detected by 12 SRAP primer combinations with an average of 22 bands per combination. Me4-Em1 and Me5-Em2 primer combinations were known as the most informative SRAP markers based on the PIC values (0.34) where they distinguished all studied Carthamus species. Cluster analysis classified all accessions into five main groups among which clusters containing cultivated individuals were distinctly separated from those containing wilds. The most and the least genetic variation based on analysis of molecular variance, were detected within (76.90 %) and among (22.84 %) groups, respectively. The obtained results suggested that C. dentatus, C. glaucus and C. boissieri species may be classified in one section including C. dentatus in one and C. glaucus and C. boissieri in another subsection. The results also revealed high genetic similarity between C. oxyacanthus and C. tinctorius despite their different morphological characteristics.

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