Cytogenetic Study on Five Species of Genus <i>Anemone</i> L. (Ranunculaceae) from the Western Himalayas, India

Abstract

Summary During the present course, population-based meiotic studies were carried out on five species of genus Anemone from selected localities of Himachal Pradesh in the Western Himalayas (India). Varied intraspecific morphotype and B-chromosome were reported in A. obtusiloba. Impaired male meiosis was noted in all populations of A. obtusiloba, A. polyanthes, A. rivularis, A. tetrasepala, and A. vitifolia. These anomalous species were marked with meiotic abnormalities in the form of cytomixis, chromosomal stickiness, unoriented bivalents, formation of laggards and bridges resulting in abnormal microsporogenesis, and production of heterogeneous-sized fertile pollen grains along with reduced pollen fertility.

An overview of chromosome and basic numbers diversity in cytologically investigated polypetalous genera from the Western Himalayas (India)

“…To understand this fully, it has been decided to discuss first the overall chromosome numbers of the genera to which these species belong. Therefore, the analysis of chromosome numbers of 127 genera belonging to 28 families of Polypetalae is presented in this paper on the basis of cumulative worldwide information available from the previous literature along with additions made from our present investigations (Rani et al 2010a(Rani et al , 2010bJeelani, Rani, et al 2010Gupta 2011a, 2011b;, 2012a, 2012b, 2013a, 2013b.…”