The Relationship between 2 C DNA Content, Systematic Position, and the Level of Nuclear DNA Endoreplication During Differentiation of Root Parenchyma in Some Dicotyledonous Shrubs and Trees. Comparison with Herbaceous Species

1984 ◽  
Vol 179 (8) ◽  
pp. 641-657 ◽  
Author(s):  
Maria J. Olszewska ◽  
Regina Osiecka
Keyword(s):  
Dna Content ◽  
Nuclear Dna ◽  
Systematic Position ◽  
Herbaceous Species ◽  
Dna Endoreplication ◽  
The Relationship

DNA content in Tradescantia

1985 ◽  
Vol 27 (6) ◽  
pp. 766-775 ◽  
Author(s):  
Arturo Martínez ◽  
Héctor D. Ginzo
Keyword(s):  
North America ◽  
Dna Content ◽  
Nuclear Dna ◽  
Nuclear Dna Content ◽  
Life Forms ◽  
Chromosome Size ◽  
Polyploid Complex ◽  
Ploidy Levels ◽  
Vegetative Adaptation ◽  
The Relationship

There is a wide variation in the nuclear DNA content and chromosome size between the species belonging to the T. crassifolia and T. virginiana alliances (all the species but one are native to Central and North America). Also the DNA content per genome decreases when the ploidy level increases within the same specific polyploid complex with three ploidy levels (2x, 4x, and 6x). In contrast, no variation was found in the DNA content per genome between different ploidy levels in the T. fluminensis alliance (all the species are native to South America) where they range from 6x to 22x. Since all the species described here are perennials with various life forms, it was possible to analyze the relationship between the DNA content and their vegetative adaptation to the environment. The more specialized species (geophytes and hemicryptophytes) have a higher amount of DNA than the chamaephytes adapted to live in relatively more mesic regions. In the species living in Central and North America there is a positive correlation between the increase in DNA content and the latitude of their native regions.Key words: Tradescantia, DNA content, geographical distribution, life forms, polyploidy.

Osteocyte lacunae size in the genus Xenopus (Pipidae)

1987 ◽  
Vol 8 (4) ◽  
pp. 315-320 ◽  
Author(s):  
Jelle W.F. Reumer ◽  
Charles-H. Thiébaud
Keyword(s):  
Dna Content ◽  
Nuclear Dna ◽  
Nuclear Dna Content ◽  
Strongly Correlated ◽  
Osteocyte Lacunae ◽  
The Relationship

AbstractThe relationship is studied between the volume of osteocyte lacunae and the nuclear DNA content and level of ploidy in the genus Xenopus. The lacunae volume and the DNA content appear strongly correlated. The possible use of this relationship in the study of the evolution of the genus is discussed.

scholarly journals Koilocytotic lesions of the cervix. The relationship of mitotic abnormalities to the presence of papillomavirus antigens and nuclear dna content

Cancer ◽  
1984 ◽  
Vol 53 (5) ◽  
pp. 1081-1087 ◽  
Author(s):  
Barbara Winkler ◽  
Christopher P. Crum ◽  
Tsuneo Fujii ◽  
Alex Ferenczy ◽  
Mathilde Boon ◽  
...  
Keyword(s):  
Dna Content ◽  
Nuclear Dna ◽  
Nuclear Dna Content ◽  
Mitotic Abnormalities ◽  
Relationship Of ◽  
The Relationship

scholarly journals Genome size expansion and the relationship between nuclear DNA content and spore size in the Asplenium monanthes fern complex (Aspleniaceae)

2013 ◽  
Vol 13 (1) ◽  
pp. 219 ◽  
Author(s):  
Robert J Dyer ◽  
Jaume Pellicer ◽  
Vincent Savolainen ◽  
Ilia J Leitch ◽  
Harald Schneider
Keyword(s):  
Genome Size ◽  
Dna Content ◽  
Nuclear Dna ◽  
Nuclear Dna Content ◽  
Spore Size ◽  
The Relationship
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