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Genetic diversity analysis of a world-wide collection of Ascochyta rabiei isolates using sequence tagged microsatellite markers

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A previously characterized compound microsatellite locus ARMS1, containing penta- and decameric repeat units, has been reported to reveal genetic diversity in Ascochyta rabiei (Pass.) Labr. isolates. Therefore, 37 isolates of Ascochyta rabiei collected from different states of India and 38 isolates from fifteen other countries in the world were examined for their diversity at this locus. Twenty-six alleles on the basis of size (228--451 base pairs) were detected in the world isolates examined, while 15 alleles (287--418 base pairs) were observed in isolates from the Indian subcontinent. To the best of our knowledge, this study is the first to demonstrate diversity in representative Ascochyta rabiei isolates from different parts of the world at the ARMS1 locus.

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Barve, M., Santra, D., Ranjekar, P. et al. Genetic diversity analysis of a world-wide collection of Ascochyta rabiei isolates using sequence tagged microsatellite markers. World Journal of Microbiology and Biotechnology 20, 735–741 (2004).

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  • ARMS-1
  • ascomycete
  • Ascochyta blight
  • Ascochyta rabiei
  • chickpea pathogen
  • STMS (sequence tagged microsatellite repeats)