Karyosystematic investigation of the genus<i>Scorzonera</i>L. s.l. (Lactuceae, Asteraceae)

Назарова, Э. А.

doi:10.1080/00087114.1997.10797399

Cited by 24 publications

(64 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…was revised by Chamberlain (1975) for the Flora of Turkey, many new species have been recorded from Turkey. The classification of the genus has been highly controversial (Nazarova, 1997;Mavrodiev et al, 2004), and because of this different taxonomic treatments have been used in the floras. Starting with De Candolle (1805), frequently Scorzonera species with a conspicuous cylindric carpopodium were placed under a separate genus, Podospermum DC.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A conspectus of Scorzonera s.l. in Turkey

Çoşkunçelebi¹,

Makbul²,

Gültepe³

et al. 2015

Turk J Bot

View full text Add to dashboard Cite

The genus Scorzonera L. (Asteraceae), with about 160 species belonging to the subtribe Scorzonerinae Dumort. of the tribe Cichorieae, is widespread in the more arid regions of Eurasia and northern Africa (Bremer and Anderberg, 1994;Nazarova, 1997).After the genus Scorzonera s.str. was revised by Chamberlain (1975) for the Flora of Turkey, many new species have been recorded from Turkey. The classification of the genus has been highly controversial (Nazarova, 1997;Mavrodiev et al., 2004), and because of this different taxonomic treatments have been used in the floras. Starting with De Candolle (1805), frequently Scorzonera species with a conspicuous cylindric carpopodium were placed under a separate genus,

show abstract

Section: Introductionmentioning

confidence: 99%

“…of the tribe Cichorieae, is widespread in the more arid regions of Eurasia and northern Africa (Bremer and Anderberg, 1994;Nazarova, 1997).…”

Section: Introductionmentioning

confidence: 99%

A conspectus of Scorzonera s.l. in Turkey

Çoşkunçelebi¹,

Makbul²,

Gültepe³

et al. 2015

Turk J Bot

View full text Add to dashboard Cite

show abstract

“…This mitotic chromosome number was the same from the three different localities in Kuwait and which is consistent with the findings from the other countries indicating the high stability of the diploid number. Accordingly, the gametic number (Ghaffari 1987a, b); 2n=36 (Negodi 1935(Negodi , 19372n=44 (Meusel and Ohle 1966, Janaki and Sobti 1962, Forissier 1973, Queiros 1973, Van Loon 1974, Heyn et al 1974, Borgen 1975, Scrugli 1974, Gallego and Talvera 1983(2 References in IPCN 19922n=42 (Borgen 1974, Love andKjellquist 1974); 2n=14 (Humphries et al 1978); 2n=18 (Humphries et al 1978); n=22 (Strother 1972); n=23 (Rashid 1974 (Nazarova 1981); 2n=54 (Stebbins et al 1953);2n=40 (Podlech and Bader 1974). Comment: The counts of chromosomes of sporophytic are the hexaploid 54 and the tetraploid 36 and gametic number is 18 and all are first to be reported from Kuwaiti flora.…”

mentioning

confidence: 99%

Determination of Chromosome Number of Kuwaiti Flora I.

Malallah

Brown

1999

CYTOLOGIA

View full text Add to dashboard Cite

Summary This paper deals with the chromosome numbers (somatic or sporophytic and gametic) of some wild species of the Kuwaiti flora. All species were collected from the wild except Plantago lanceolata, which was cultivated. Some values are reported for the first time. The species and their respective chromosome numbers are as follows: Anthemis deserti 2n=18, Atractylis carduus 2n=20, Calendula arvensis 2n=36, 44, Koelpinia linearis 2n=54, 36, Launaea capitata 2n=18, L. mucronata 2n=16, Picris babylonica 2n=10, Reichardia tingitana 2n=16, Senecio glaucus 2n=20, Sonchus oleraceus 2n=32, Astragalus hauarensis 2n=48, A. schimperi 2n=16, Lotus halophilus 2n=14, 28, Medicago laciniata 2n=16, Plantago amplexicaulis 2n=10, P. boissieri 2n=10, P. ciliata 2n = 10, P. coronopus 2n= 10, P. lanceolata 2n= 12, P. ovata 2n =8. Karyotype analysis of P. babylonica, R. tingitana, P. boissieri, and P. ciliata is shown.The chromosome set is not only one of the most characteristic attributes of a species, but also carries the bulk of essential information for controlling its organization and metabolism. Therefore, variations in number, size and form of the chromosomes between genera and related species, and sometimes between populations of the same species, are of importance for classification and certain evolutionary aspects (Sato 1962). Such variations represent different karyotypes (Jackson 1971). Numerical analysis of chromosomes is one of the processes in assessing the genomic status of a species. Chromosome numbers of species can provide useful information for various fields of research including karyotaxonomy, genetics, cytogenetics, plant breeding, ecology, biogeography and molecular biology. A number of workers have been involved in reporting the chromosome numbers of wild and cultivated plant species (Darlington and Wylie 1955, Bolkhovskikh et al.

show abstract

“…The taxonomic difficulties are caused by the high morphological variation and presence of different ploidy levels (Mavrodiev et al, 2004). Although the majority of Scorzonera taxa are diploids, several polyploids and/or polyploid cytotypes are also found in the genus (Nazarova, 1997;Owen et al, 2006). Although there are several studies on chromosome counts in the genus Scorzonera (Martin et al, 2012), there are fewer regarding karyotype analysis.…”

mentioning

confidence: 99%

“…Similarly, De la Guardia and Blanca (1987) reported that the basic chromosome number in the genus is x = 6 and x = 7, and that polyploidy is very important for the evolution of the genus Scorzonera s.l. The most comprehensive cytological study on Scorzonera and related genera was performed by Nazarova (1997), who reported that karyotype analysis supports sectional delimitation in the genus Scorzonera. Nazarova also indicated that Scorzonera, Podospermum (L.) DC., Epilasia Benth., Tourneuxia Cass., Pterachaenia Lipsch., and Takhtajantha Nazarova are related taxa based on karyotype analysis.…”

mentioning

confidence: 99%

Cytogenetic studies on some Scorzonera L. s.l. (Asteraceae) taxa from Turkey

Altınordu¹,

Martın²,

Makbul³

et al. 2015

Turk J Bot

View full text Add to dashboard Cite

In the present study, chromosome morphology of 32 Scorzonera L. taxa, including 19 species endemic to Turkey, was analyzed. The plant materials were collected from different natural populations of Turkey between 2005 and 2011. The classification of chromosomes, the length of the long and short arm, haploid chromosome length, arm ratio, and relative chromosomal length were measured by software image analyses. The basic chromosome numbers were determined as x = 6 and x = 7. Two types of ploidy levels were observed as diploidy and tetraploidy. Karyotype asymmetry indices, TF%, As K%, Syi, Rec, A, A1, and A2 were also calculated.

show abstract

Karyosystematic investigation of the genusScorzoneraL. s.l. (Lactuceae, Asteraceae)

Cited by 24 publications

References 7 publications

A conspectus of Scorzonera s.l. in Turkey

A conspectus of Scorzonera s.l. in Turkey

Determination of Chromosome Number of Kuwaiti Flora I.

Cytogenetic studies on some Scorzonera L. s.l. (Asteraceae) taxa from Turkey

Contact Info

Product

Resources

About