caa a22 4500 465806309 CHVBK 20180323112104.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF03053450 doi (NATIONALLICENCE)springer-10.1007/BF03053450 Numerical and structural inconstancy in the chromosome complements of Belamchanda chinensis Dc. (Iridaceae) [Elektronische Daten] [A Srivastava, Purnima,] Chromosome polymorphism inBelamchanda chinensis Dc. of the family Iridaceae, has been explored in detail. The root tip cells exhibited aneusomaty and differences in the morphology of chromosomes. About 70% cells were with 2n=30, 20% cells has 2n=28 and 10% cells were with 2n=32. Critical analysis of 3 typical cells with different chromosome numbers, selected out of several cells studied, exhibited varying proportions of long, medium and short chromosomes and different numbers of metacentric and submetacentric chromosomes. In these cells, while on one hand, all chromosomes could not be grouped in two's on the basis of chromosome morphology, certain chromosome paris were present more than once, on the other hand. The cytological basis of inconstancy in the chromosome complements within the cells of the same tissue and it's significance in the evolution of the vegetatively propagated plants have been discussed. Indian Academy of Sciences, 1990 Aneusomaty nationallicence chromosome polymorphism nationallicence numerical inconstancy nationallicence structural inconstancy nationallicence Srivastava A. Department of Botany, Institute of Advanced Studies, Meerut University, 250 004, Meerut, India aut Purnima, Department of Botany, DN College, 250 004, Meerut, India aut Proceedings: Plant Sciences Springer India 100/3(1990-06-01), 205-210 0370-0097 100:3<205 1990 100 12388 https://doi.org/10.1007/BF03053450 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF03053450 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Srivastava A. Department of Botany, Institute of Advanced Studies, Meerut University, 250 004, Meerut, India aut NATIONALLICENCE 700 1- Purnima Department of Botany, DN College, 250 004, Meerut, India aut NATIONALLICENCE 773 0- Proceedings: Plant Sciences Springer India 100/3(1990-06-01), 205-210 0370-0097 100:3<205 1990 100 12388 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer