Karyotype diversity in five new brinjal varieties

Abstract

Somatic chromosome number and karyotype analysis in five new varieties of brinjal (Solanum melongena var. esculentum) namely var. Utkal Anushree, Utkal Jyoti, Utkal Madhuri, Utkal Keshari and Utkal Tarini were reported for the first time. Diploid chromosome number 2n = 24 was recorded in all the varieties with structural variation in chromosome morphology in the genomic compliment. Total chromosome length varied from 82.5 to 94.2 μm and 42.5 to 48.5 μm3 in var. Utkal Anushree and Utkal Jyoti respectively. Total F% revealed mostly with median constricted chromosomes. Karyotype analysis helped in distinguishing purple coloured skin fruit type var. Utkal Tarini and Utkal Kehari with green colour skin fruit type vars. Utkal Anushree and Utkal Madhuri, which will be helpful for further crop improvement through breeding.