SPECIES RELATIONSHIPS IN THE LOTUS CORNICULATUS GROUP AS DETERMINED BY KARYOTYPE AND CYTOPHOTOMETRIC ANALYSES

1973 ◽  
Vol 15 (1) ◽  
pp. 101-115 ◽  
Author(s):  
Rosa I-Jung Cheng ◽  
W. F. Grant
Keyword(s):  
Deoxyribonucleic Acid ◽  
Diploid Species ◽  
Chromosome Morphology ◽  
Evolutionary Development ◽  
Somatic Chromosome Number ◽  
Dna Values ◽  
Total Complement ◽  
Diploid Taxon ◽  
Lotus Pedunculatus ◽  
Nuclear Deoxyribonucleic Acid

An analysis was made of chromosome morphology and, by Feulgen cytophotometric measurements, of the nuclear deoxyribonucleic acid (DNA) content of L. corniculatus and related diploid species of the L. corniculatus group (L. alpinus, L. borbasii, L. corniculatus var. brachyodon, L. filicaulis, L. japonicus, L. krylovii, L. pedunculatus, L. schoelleri, L. tenuis) and L. coimbrensis of the L. aegeus group. The idiogram of L. coimbrensis differed markedly from those for the species of the L. corniculatus group, which were considerably more uniform. Lotus pedunculatus was the only species with chromosomes bearing satellites. Since L. corniculatus has a somatic chromosome number of 24, compared to L. corniculatus var. brachyodon with 12, the latter represents a new diploid taxon which should receive further taxonomic study. DNA values differed between the species, and in general, total complement lengths were correlated with DNA values. It is suggested that classical karyotype analysis may not be a suitable method to investigate the parentage of the tetraploid, L. corniculatus, because of chromosomal repatterning which has occurred during the evolutionary development of the closely related diploid species.

A new diploid species of Lotus (Leguminosae) in Pakistan

1972 ◽  
Vol 50 (9) ◽  
pp. 1865-1870 ◽  
Author(s):  
Olga Sz.-Borsos ◽  
B. H. Somaroo ◽  
William F. Grant
Keyword(s):  
Somatic Chromosome ◽  
Diploid Species ◽  
Royal Botanic Garden ◽  
Tetraploid Species ◽  
Somatic Chromosome Number ◽  
Botanic Garden ◽  
Phenotypic Characters ◽  
Diploid Taxon ◽  
A New Species

Seed was received as Lotus corniculatus L. var. minor Bak. from Dr. B. L. Burtt of the Royal Botanic Garden, Edinburgh, who collected them from plants growing in Peshawar, Pakistan. Plants grown from this Peshawar seed all have a somatic chromosome number of 12. Measurement made on 15 phenotypic characters have been compared with six other diploid species of Lotus. From these analyses and a survey of the literature, it has been determined that these plants do not match any known diploid species, or variety, and are probably of the same taxon that Baker described as L. corniculatus L. var. minor. It is considered that this diploid taxon was incorrectly associated with the tetraploid species L. corniculatus L. s. str. (2n = 24). From a study of its nomenclature and the fact that the varietal description by Baker is too poor for the characterization of a species, the plants grown from the Peshawar seed have been described as a new species and named Lotus burttii Sz.-Borsos after Dr. B. L. Burtt, who collected this material. While its occurrence is so far not known outside of Pakistan, its complete area of distribution remains to be investigated.

scholarly journals Nuclear deoxyribonucleic acid polymerases of liver.

1975 ◽  
Vol 250 (20) ◽  
pp. 8179-8183
Author(s):  
WE Lynch ◽  
S Surrey ◽  
I Lieberman
Keyword(s):  
Deoxyribonucleic Acid ◽  
Nuclear Deoxyribonucleic Acid

Chromosome morphology of Clematis, subsection Viornae (Ranunculaceae)

1976 ◽  
Vol 54 (10) ◽  
pp. 1135-1139 ◽  
Author(s):  
W. Michael Dennis
Keyword(s):  
Chromosome Number ◽  
Somatic Chromosome ◽  
Chromosome Complement ◽  
Chromosome Morphology ◽  
Terminal Region ◽  
Somatic Chromosome Number ◽  
Median Region ◽  
Acrocentric Chromosomes ◽  
Subterminal Region ◽  
Marked Stability

Cytological studies were made on the following taxa: C. addisonii, C. filifera, C. glaucophylla, C. pitcheri, C. reticulata, C. texensis, C. versicolor, and C. viorna. All species were found to have a somatic chromosome number of 16 with a uniform karyotype consisting of five pairs of metacentric chromosomes with centromeres in the median region and three pairs of acrocentric chromosomes, two pairs with centromeres in the terminal region and one pair with centromeres in the subterminal region. These findings agree with reports of chromosome number and karyotype for other species of Clematis and suggest a marked stability of chromosome complement in the genus.

Allium kyrenium (Amaryllidaceae), a new species from Northern Cyprus

Phytotaxa ◽  
2015 ◽  
Vol 213 (3) ◽  
pp. 282 ◽  
Author(s):  
GIANPIETRO GIUSSO DEL GALDO ◽  
CRISTIAN BRULLO ◽  
Salvatore Brullo ◽  
CRISTINA SALMERI
Keyword(s):  
New Species ◽  
Somatic Chromosome ◽  
Eastern Mediterranean ◽  
Conservation Status ◽  
Diploid Species ◽  
Mediterranean Area ◽  
Somatic Chromosome Number ◽  
Northern Cyprus ◽  
Eastern Mediterranean Area ◽  
A New Species

Allium kyrenium, a new species of Allium sect. Codonoprasum, is described and illustrated from northern Cyprus. It is a very circumscribed geophyte growing on the calcareous cliffs of the Kyrenia range. This diploid species, with a somatic chromosome number 2n = 16, shows close morphological relationships with A. stamineum, a species complex distributed in the eastern Mediterranean area. Its morphology, karyology, leaf anatomy, ecology, conservation status and taxonomical relationships with the allied species belonging to the A. stamineum group are examined.

Nuclear Deoxyribonucleic Acid Content in Inverted Papilloma of the Urothelium

1994 ◽  
Vol 26 (2) ◽  
pp. 149-152 ◽  
Author(s):  
Kazuto Kunimi ◽  
Tadao Uchibayashi ◽  
Torn Hasegawa ◽  
Soo-Woong Lee ◽  
Mitsuo Ohkawa
Keyword(s):  
Acid Content ◽  
Deoxyribonucleic Acid ◽  
Inverted Papilloma ◽  
Nuclear Deoxyribonucleic Acid

Feulgen Microspectrophotometry of Oral Cancer and Leukoplakia

1975 ◽  
Vol 54 (6) ◽  
pp. 1196-1199 ◽  
Author(s):  
John L. Doyle ◽  
John H. Manhold
Keyword(s):  
Cervical Cancer ◽  
Oral Cancer ◽  
Cell Lines ◽  
Acid Content ◽  
Deoxyribonucleic Acid ◽  
Diploid Cell ◽  
Nuclear Deoxyribonucleic Acid

Feulgen microspectrophotometry was performed using the two wavelength method on 33 lesions and showed that five of ten carcinomas and 12 of 16 leukoplakias had diploid cell lines. This correlates well with similar findings in cervical cancer and dysplasia suggesting that changes in nuclear deoxyribonucleic acid content occur quite early in the evolution of cancer.

Wilms Tumors: Relationship of Nuclear Deoxyribonucleic Acid Ploidy to Patient Survival

1987 ◽  
Vol 138 (4 Part 2) ◽  
pp. 974-977 ◽  
Author(s):  
Leslie M. Rainwater ◽  
Yoshio Hosaka ◽  
George M. Farrow ◽  
Stephen A. Kramer ◽  
Panayotis P. Kelalis ◽  
...  
Keyword(s):  
Deoxyribonucleic Acid ◽  
Patient Survival ◽  
Relationship Of ◽  
Nuclear Deoxyribonucleic Acid
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