• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2010, Volume: 3, Issue: 8, Pages: 925-927

Original Article

Chromosome number and karyotype analysis of wild guava Psidium guineense Sw. – a new report from Tripura, India


The chromosome number and karyotype of Psidium guineense Sw. was investigated. The species had the chromosome count of n = 22 and 2n = 44 with a karyotype formula . The karyotype of the species was slightly asymmetric with a little variation in chromosome length. The species revealed 4 pairs of metacentric, 12 pairs of nearly metacentric and 6 pairs of sub-metacentric chromosomes one of which also had secondary constriction. No meiotic irregularities were recorded. The chromosome constancy of the karyotype recorded in the present study justifies a new record of the present endemic threatened species growing wild in Tripura.
Keywords: Psidium guineense Sw. chromosome number, karyotype, endemic, Tripura


Subscribe now for latest articles and news.