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Note on the chromosomes ofNicotiana plumbaginifoliaViviani

โœ Scribed by L. P. Pijnacker; A. Mouras

Book ID
104625404
Publisher
Springer Netherlands
Year
1986
Tongue
English
Weight
510 KB
Volume
71
Category
Article
ISSN
0016-6707

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โœฆ Synopsis

The centromere position on the chromosomes of three European stocks of Nicotiana plumbaginifolia (2n = 20) was determined by investigating in root tip mitoses the shape of the chromosomes during congression and polar movement and during C-metaphase. One pair of chromosomes is subtelocentric and 9 pairs are acrocentric. Some chromosomes mimic (sub-)metacentrics by having noncentric constrictions. A recently published (A. Villa; Genetica 64: 145-148, 1984) idiogram of one of the stocks is commented on.

๐Ÿ“œ SIMILAR VOLUMES

The chromosome idiogram ofNicotiana plum
The chromosome idiogram ofNicotiana plumbaginifolia
โœ A. Villa ๐Ÿ“‚ Article ๐Ÿ“… 1984 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 217 KB

The karyotype of Nicotiana plumbaginifotia (2n = 20) was determined by the analysis of 25 metaphase plates of both haploid and diploid plantlets. The material originated from root tip meristems and leaf protoplasts. Chromosome length ranged from 1.73 to 4.34/am and the total length of the genome was