Chromosomal characteristics in two different sexual phenotypes of Stichoneuron membranaceum
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Abstract
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.
Keywords
Androdioecious Hermaphrodite Karyotype Stemonaceae Stichoneuron membranaceumNotes
Acknowledgements
The first author is grateful to the DBT, Government of India for JRF Fellowship.
Compliance with ethical standards
Conflict of interest
The authors declare that there is no conflict of interest.
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