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Karyotypic analysis in three species of Allium and their some Varieties

Author Affiliations

  • 1School of Studies in Botany, Vikram University Ujjain, M.P., 456010, INDIA

Int. Res. J. Biological Sci., Volume 4, Issue (9), Pages 1-9, September,10 (2015)


Karyotypic studies were made in 3 three species of Allium genus (Allium cepa L., Allium sativum L. and Allium tuberosum Rottl). All the three varieties of Allium cepa as Nasik, White and Kashmiri and two varieties Allium sativum as Deshi and Kashmiri were diploid with (2n=16) and Allium tuberosum was tetraploid with (2n=32). The chromosome types were detected as mostly metacentrics (M), submetacentrics (Sm) and few subtelocentrics (St). Karyotype formula is 8M+6Sm+2St in all the varieties of Allium cepa and Allium sativum. The sixth pair of subtelocentric chromosomes was nucleolar represented by prominent satellites in Allium sativum. Karyotype formula is 22M+6Sm+4St in Allium tuberosum. All the species have symmetrical karyotype.


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