Morphology of pachytene chromosomes and its bearing on the nature of polyploidy in the cytological races of Apluda mutica L. Authors
Received: 20 March 1972 Accepted: 26 January 1973 DOI:
Cite this article as: Murty, U.R. Genetica (1973) 44: 234. doi:10.1007/BF00119108 Abstract
Pachytene chromosomes of diploid (n=10), hexaploid (n=30) and heptaploid (n=35) races of
Apluda mutica L. are similar in their diagnostic morphological features. Hexaploids and heptaploids possess the same ten basic types of chromosomes characteristic of the diploid in multiples of six and seven respectively. Quadrivalent associations involving four homologous chromosomes were observed for all ten types of chromosomes of the hexaploid and heptaploid. It is suggested that the polyploid races may be autoploids.
This work forms part of a thesis submitted to the Andhra University, Waltair for the Degree of Doctor of Philosophy.
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Avdulov, N. P. (1928). Systematic karyology of the family Gramineae. Proc. all-Russ. Bot. Congr. 65–67.
Hunter A. W. S. (1934). A karyosystematic investigation in the Gramineae. Can. J. Res. (C) 11: 213–241.
McClintock B. (1929). Chromosome morphology in Zea mays. Science. 69: 629–630.
Murty U. R. (1965). Chromosome numbers in the Gramineae. Chrom. Inf. Serv., Tokyo
Murty, U. R. (1968). Cytogenetic studies in
Apluda mutica L. and Iseilema laxum Hack. Thesis, Andhra Univ., Waltair, India.
Ourecky D. K. (1963). Pachytene chromosome morphology in Cynodon dactylon (L.) Pers. Nucleus
Roy R. P. & D. N. Singh (1958). Pachytene studies in Mnesithea perforata (L.). Caryologia
Roy R. P., D. N. Singh & S. Kumari (1965). Pachytene analysis in Dichantium. I. Chromosome morphology in D. annulatum. Nucleus
Venkateswarlu, J. (1962). Some aspects of the study of pachytene chromosomes. Presidential address. Section of Botany. 49th Indian Science Congress, Cuttack, India.
Venkateswarlu J. & V. R. K. Reddy (1956). Morphology of the pachytene chromosomes and meiosis in Sorghum subglabrescens, a Eu-Sorghum. J. Indian bot. Soc.
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