Journal ArticleDOI
Feulgen microspectrophotometric estimation of nuclear DNA of species and varieties of three different genera of Marantaceae
Archana Sharma,Sandip Mukhopadhyay +1 more
- Vol. 93, Iss: 3, pp 337-347
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TLDR
The variation in 4C DNA amounts between the species of Calathea was not distinct but in two species of Maranta, a notable variation in nuclear DNA amount was recorded and the amount of nuclear DNA did not show direct correlation with the total chromosome length and volume.Abstract:
Karyological analysis including determination of somatic chromosome number, total chromosome length, volume and karyotype formula andin situ estimation of 4C-nuclear DNA amount were carried out on 14 different species and varieties of the generaCalathea, Maranta andStromanthe. The 4C nuclear DNA amount was estimated through Feulgen microspectrophotometry following single wavelength method and expressed in arbitrary units of relative absorbances. The variation in 4C DNA amounts between the species ofCalathea was not distinct but in two species ofMaranta, a notable variation in nuclear DNA amount was recorded. In addition, the amount of nuclear DNA did not show direct correlation with the total chromosome length and volume. The absence of wide difference in nuclear DNA content at an interspecific level might have some adaptive value.read more
Citations
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Journal ArticleDOI
Nuclear DNA Amounts in Angiosperms and their Modern Uses—807 New Estimates
TL;DR: This paper lists DNA C-values for 807 angiosperm species from 70 original sources, including 520 from sources published after 1996, and 691 for species not included in any of the previous five lists.
Journal ArticleDOI
Estimation of 4C DNA and Karyotype Analysis in Ginger (Zingiber officinale Rosc.) -I
Anath Bandhu Das,S. Rai,P. Das +2 more
TL;DR: The structural alteration of chromosomes as well as loss or addition of highly repetitive sequences in the genome showed variation in the DNA amount at cultivar level, but a marginal variation in nuclear DNA content at the cultivarlevel indicated a close relationship between them.
Journal ArticleDOI
Karyotype diversity and interspecific 4C DNA variation inBupleurum
A. B. Das,R. Mallick +1 more
TL;DR: Investigation on karyotype, 4C nuclear DNA amount and interphase nuclear volume (INV) of different HimalayanBupleurum species belonging to Umbelliferae revealed genetic differentiation.
Journal ArticleDOI
Variation in 4C DNA Content and Chromosome Characteristics in Different Varieties of Coriandrum sativum L
Anathbandhu Das,Ranajit Mallick +1 more
TL;DR: The absence of wide differences in nuclear DNA content in the varietal level indicate a close relationship between Coriandrum sativum L. and 4C, which have played a vital role in intervarietal DNA variation.
Journal ArticleDOI
Dysploidy and polyploidy trigger strong variation of chromosome numbers in the prayer-plant family (Marantaceae)
TL;DR: Dysploid variation, polyploidy and, to a lesser extend, hybridization may be the main factors in chromosome number evolution of the family Marantaceae.
References
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Journal ArticleDOI
Nuclear DNA content of several wild and cultivated Oryza species
G.A.S. Iyengar,S.K. Sen +1 more
TL;DR: The trend in evolution of this genus seems towards increase in DNA content since the cultivated Oryza species, presumable being more advanced than the wild species, contained more DNA per nucleus than theWild species.
Journal ArticleDOI
Tolerance of Lolium hybrids to quantitative variation in nuclear DNA.
P. K. Gupta,H. Rees +1 more
TL;DR: From the DNA distribution in F2 it is possible to draw conclusions about the influence of the differential DNA component on gamete and zygote viability, and describes the segregation of nuclear DNA amounts among F2 progenies from F2 hybrids between L. temulentum with high DNA and L. rigidum with low DNA content.
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Effect of induced nitrogen deficiency on symbiotic nitrogen fixation
D. Ohri,M. A. Nazeer,M. Pal +2 more
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Quantitative variation in dna as related to ploidy level and species in some wild roses
TL;DR: Relative DNA content and chromosome number and behaviour were studied in Manitoba wild roses to suggest interspecific relationships between diploid and hexaploid rose species.