@ARTICLE{Malik_Reyaz_Ahmad_Cytogenetic_2012, author={Malik, Reyaz Ahmad and Gupta, Raghbir Chand and Kumari, Santosh}, volume={vol. 54}, number={No 1}, journal={Acta Biologica Cracoviensia s. Botanica}, howpublished={online}, year={2012}, publisher={Biological Commission of the Polish Academy of Sciences – Cracow Branch}, abstract={Our cytomorphological study of various populations of Elsholtzia ciliata (Lamiaceae) collected from high-altitude sites of Kashmir Himalaya revealed two euploid cytomorphotypes, diploid (n=8) and tetraploid (n=16), growing sympatrically but inhabiting two different habitats. This is the first report of tetraploid (4×) E. ciliata from the Indian subcontinent. We found the course of meiois to be normal in diploids, but tetraploid individuals showed chromosome and meiotic irregularities: cytomixis at early prophase I, stickiness at metaphase I, and chromosome bridges at anaphase I. In tetraploids, 23 of the 26 pollen mother cells observed at metaphase I showed 0-6 quadrivalents, suggesting that the tetraploid is a segmental allopolyploid. Microsporogenesis was also abnormal in tetraploids, showing the formation of triads. All these anomalies are conducive to lower reproductive potential (40.70%) in tetraploids than in diploids (90.50%). Significant morphological differences between the two cytotypes are presented.}, type={Artykuły / Articles}, title={Cytogenetic Diversity of Elsholtzia Ciliata Benth. (Lamiaceae) From Kashmir Himalaya}, URL={http://www.czasopisma.pan.pl/Content/81755/PDF/08_malik.pdf}, doi={10.2478/v10182-012-0008-9}, keywords={Cytomorphotype, chromosome, diploid, tetraploid, Elsholtzia ciliata, quadrivalents, Kashmir Himalaya, chromosome stickiness}, }