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.

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.

A new species of Trigonella sect. Ellipticae (Leguminosae-Papilionoideae) from Iran, including cytogenetic and anatomical notes

Phytotaxa ◽  
2015 ◽  
Vol 202 (1) ◽  
pp. 26 ◽  
Author(s):  
Massoud Ranjbar ◽  
ZAHRA HAJMORADI
Keyword(s):  
New Species ◽  
Chromosome Number ◽  
Related Species ◽  
Somatic Chromosome ◽  
Base Number ◽  
Somatic Chromosome Number ◽  
Chromosome Counts ◽  
Closely Related Species ◽  
A New Species

A new species, Trigonella bakhtiarica, from the Iranian province Chahar Mahal Va Bakhtiari is described, illustrated and compared to its most closely related species, T. aphanoneura. Trigonella bakhtiarica has a longer corolla and differs in the shape, surface and size of its pods, which are taxonomically informative characters in Trigonella sect. Ellipticae. Chromosome counts and meiosis assays show that both species are diploid, and that their euploid plants possess a somatic chromosome number of 2n = 2x = 16, which is consistent with the predicted base number of x = 8.

Bellevalia pseudolongipes sp. nov. (Asparagaceae): a new species from southeastern Anatolia, Turkey

Phytotaxa ◽  
2014 ◽  
Vol 188 (4) ◽  
pp. 209 ◽  
Author(s):  
OSMAN KARABACAK ◽  
HASAN YILDIRIM ◽  
ESRA MARTİN
Keyword(s):  
New Species ◽  
Chromosome Number ◽  
Somatic Chromosome ◽  
Morphological Characters ◽  
Full Description ◽  
Eastern Anatolia ◽  
Somatic Chromosome Number ◽  
South Eastern ◽  
A New Species

Bellevalia pseudolongipes (Asparagaceae) is described and illustrated as a new species from Siirt province in South Eastern Anatolia, Turkey. Diagnostic morphological characters, a full description and detailed illustrations are provided. It is morphologically similar to B. longipes but easily differs in both several morphological characters and chromosome number. The somatic chromosome number was determined as 2n = 12 in B. pseudolongipes.

Cytogenetical analysis of Clitoria ternatea

2021 ◽  
Vol 8 (1) ◽  
pp. 71-77
Author(s):  
P. Phukan ◽  
M. A. Laskar ◽  
B. J. Mylliemngap ◽  
J. M. Lamo
Keyword(s):  
Somatic Chromosome ◽  
Heterochromatic Region ◽  
Somatic Chromosome Number ◽  
Chromomycin A3 ◽  
Important Species ◽  
Clitoria Ternatea ◽  
Nucleolar Organizing Region ◽  
The Family ◽  
Cytogenetical Analysis

Clitoria ternatea L. of the family Fabaceae is an economical, ornamental as well as medicinal important species. Chromosome characterization of C. ternatea, encompassing karyomorphological as well as fluorochrome binding was carried out in the present investigation. Karyomorphological studies showed the presence of 2n = 16 somatic chromosome number with three pairs of metacentric chromosomes and five pairs of submedian chromosomes. The analysis also revealed the present of one pair of nucleolar organizing region or satellite. Fluorochrome binding using chromomycin A3 (CMA) and 4-6-diamidino-2-phenylindole (DAPI) showed the presence of GC- and AT- rich heterochromatic region. Further analysis revealed the percentage of GC-rich was comparatively higher than AT-rich heterochromatic region. This is the first report on heterochromatin characterization in C. ternatea.

A new species of Chlorophytum (Asparagaceae) from southern Western Ghats of India

Phytotaxa ◽  
2014 ◽  
Vol 188 (5) ◽  
pp. 282
Author(s):  
KONICKAL MAMBETTA PRABHU KUMAR ◽  
VADAKKOOT SANKARAN HAREESH ◽  
KOLLENCHERRI PUTHENVEETTIL VIMAL ◽  
INDIRA BALACHANDRAN ◽  
SHRIRANG RAMACHANDRA YADAV
Keyword(s):  
New Species ◽  
Chromosome Number ◽  
Western Ghats ◽  
Somatic Chromosome ◽  
Somatic Chromosome Number ◽  
Western Ghats Of India ◽  
Southern Western Ghats ◽  
Old World Tropics ◽  
The Western Ghats ◽  
A New Species

The genus Chlorophytum Ker Gawler (1808: 1071) is one of the major genera of family Asparagaceae (APG 2009) with about 212 taxa (Kativu &a Nordal 1993, Govaerts et al. 2012). It is distributed in the Old World tropics especially in Africa and India (Mabberley 2005). It is represented by 17 species in India of which 15 occur in the Western Ghats (Malpure & Yadav 2009). Characters like anther filament ratio, anther filaments, number of tepal nerves, pedicel articulation and somatic chromosome number are taxonomically important (Adsul et al. 2014).

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 SPECIES OF ROSCOEA SM. (ZINGIBERACEAE) FROM BHUTAN AND SOUTHERN TIBET

2000 ◽  
Vol 57 (2) ◽  
pp. 271-278 ◽  
Author(s):  
C. NGAMRIABSAKUL ◽  
M. F. NEWMAN
Keyword(s):  
New Species ◽  
Phylogenetic Tree ◽  
Systematic Study ◽  
Royal Botanic Garden ◽  
Its Sequences ◽  
Botanic Garden ◽  
Molecular Systematic ◽  
Southern Tibet ◽  
The Himalaya ◽  
A New Species

A new species of Roscoea from Bhutan and southern Tibet, R. bhutanica Ngamriab., formerly included in R. tibetica Batalin, is described and a new key to all species of Roscoea is provided. While studying the phylogeny of Roscoea, we discovered that there is a correspondence between phylogeny and biogeography (Ngamriabsakul et al., 2000). There are two distinct areas of distribution in Roscoea, namely the Himalaya and China. Only R. tibetica has been recorded in both areas. Cowley (1982) indicated that this species was very variable and suggested that it might be divided. We now propose to name a new species, R. bhutanica, based on observation of living and herbarium material at the Royal Botanic Garden Edinburgh (RBGE) and a molecular systematic study. A morphological table comparing R. tibetica with R. bhutanica is given, along with the ITS sequences of R. tibetica, R. bhutanica and R. auriculata. The identification key to Roscoea species largely follows our phylogenetic tree (Ngamriabsakul et al., 2000).

scholarly journals Persicaria wugongshanensis (Polygonaceae: Persicarieae), an odoriferous and distylous new species from Jiangxi, eastern China

Phytotaxa ◽  
2014 ◽  
Vol 156 (3) ◽  
pp. 133 ◽  
Author(s):  
Bo Li
Keyword(s):  
New Species ◽  
Somatic Chromosome ◽  
Eastern China ◽  
Pollen Grains ◽  
Jiangxi Province ◽  
Somatic Chromosome Number ◽  
Morphological Comparison ◽  
Karyotype Formula ◽  
Micromorphological Characters ◽  
A New Species

Persicaria wugongshanensis, a new species from Wugongshan Mountain, Jiangxi Province in eastern China, is described and illustrated. The new species is a distinctively odoriferous herb characterized by having glandular leaves and tepals, stout inflorescences, dimorphic flowers, extraordinarily long pedicels and densely pitted achenes. A morphological comparison among the new species and its putative relatives, P. hydropiper, P. japonica, P. jucunda and P. odorata, is presented. Comparative micromorphological characters of achenes, leaves, pollen grains and tepals of the new species and its closest relative P. odorata were also presented. Distyly and its ancillary dimorphism were observed and described. The somatic chromosome number (2n = 20) and karyotype formula (2n = 14 m + 6 sm) of the new species were reported.

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