Chromosomal characteristics in two different sexual phenotypes of Stichoneuron membranaceum

Autor: Rabindra Kumar Sinha, Sangram Sinha, Supriya Adhikari
Rok vydání: 2019
Předmět:
Zdroj: Vegetos. 33:26-30
ISSN: 2229-4473
DOI: 10.1007/s42535-019-00077-6
Popis: The present investigation has been focussed on mitotic and meiotic chromosome study of androdioecious Stichoneuron membranaceum from the state of Tripura. The somatic chromosome number in both the sexual phenotypes was found to be 2n = 18 having one pair of chromosomes bearing secondary constriction. Meiosis is regular and the presence of nine bivalents in pollen mother cells of male and hermaphrodite flowers suggest that the basic chromosome number is X = 9. The accentuated chromosome homology in androecious and hermaphrodite plants of S. membranaceum is the intrinsic character of their karyotypes.
Databáze: OpenAIRE