• MANINDER

Presently, we report the first ever record of meiotic chromosome count in Silene gallica from India. In addition, the phenomenon of cytomixis showing chromatin transfer and related meiotic irregularities at the different stages of meiosis I in some individuals of the species has also been recorded in the species for the first time on the world wide basis. In most of the cases, two to six PMCs are involved in chromatin transfer. The migration of chromatin resulted into denucleated, double nucleolated, hypoploid and hyperploid PMCs. Single or multiple cytoplasmic channels between two or more proximate PMCs have been observed at prophase I. PMCs involved in cytomixis showed various other meiotic irregularities such as chromatin stickiness, asynchronous disjunction of bivalents and laggards. Present study depicts cytomixis and associated meiotic irregularities causing a significant reduction in pollen fertility which further resulted into formation of heterogeneous-sized fertile and sterile pollen grains.

Silene gallica, cytomixis, meiotic irregularities, chromatin stickiness, pollen grains

"First ever record of meiotic chromosome count, cytomixis and associated meiotic irregularities in Silene gallica L.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 8, page no.327-330, August-2018, Available :http://www.jetir.org/papers/JETIR1808797.pdf

"First ever record of meiotic chromosome count, cytomixis and associated meiotic irregularities in Silene gallica L.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 8, page no. pp327-330, August-2018, Available at : http://www.jetir.org/papers/JETIR1808797.pdf