Abstract
Twenty chickpea accessions belonging to ten different countries of the world have been subjected to phylogeny and length variations from nuclear ribosomal DNA (nr DNA). ITS1–5.8S–ITS2 regions of Cicer accessions were used for amplification in two sets, each comprising a reverse and forward ITS primers. Lengths of ITS-1 of C. arietinum and C. reticulatum ranged from 340 to 350 bp whereas that of ITS-2 from 400 to 410 bp. In all the 20 accessions investigated, GC content in ITS-1 ranged from 40 to 55% and in ITS-2 from 42 to 55%. Sequencing of polymerase chain reaction product from ITS-1 showed variability in 278 and 290 bp due to adenine and guanine nucleotide base pairs. BLAST search for ITS-1 region revealed highest homology (99%) with four strains of C. arietinum accessions. Whereas, ITS2 showed 100% homology with C. arietinum and 99% homology with that of C. echinospermum.
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