Karyological studies in Tripleurospermum (Asteraceae, Anthemideae) from north-east Anatolia

İnceer, Hüseyin; Beyazoğlu, Osman

doi:10.1111/j.1095-8339.2004.00334.x

Cited by 25 publications

(33 citation statements)

References 10 publications

(13 reference statements)

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“…However, further investigations are needed to determine the nature of polyploidy in the taxon. Polyploidy is regarded by many authors as an important evolutionary mechanism in plants (Bretagnolle et al 1998;Soltis et al 2004) and in some groups of the Anthemideae in particular (Solbrig 1977;Vallès et al 2001Vallès et al , 2005Inceer and Beyazoglu 2004;Guo et al 2005;Inceer and Hayirlioglu-Ayaz 2007). This statement does not reflect what happens in the genus.…”

Section: Systematic Implicationsmentioning

confidence: 76%

Karyological studies of some representatives of Tanacetum L. (Anthemideae-Asteraceae) from north-east Anatolia

et al. 2012

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The karyotypes of nine Tanacetum taxa distributed in north-east Anatolia, Turkey, were determined and evaluated by cluster analysis and principal-components analysis. Chromosome numbers were 2n = 2x = 18 (8 taxa) and 4x = 36 (1 taxon). Somatic chromosome numbers of two taxa and a new ploidy level in one taxon are reported for the first time. Karyotype analysis indicated that chromosomes of Tanacetum taxa have predominantly median centromeres. The taxa studied differed significantly in the size of the short arms and long arms, and the arm ratio of each pair of homologous chromosomes, indicating structural rearrangements of the chromosomes have been involved in diversification of the taxa. They were placed in 2A, 3A, and 2B of Stebbins' karyotype classification, showing the presence of a primitive symmetrical karyotype in the genus. Several systematic and evolutionary aspects of the genus are discussed on the basis of karyological data.

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Section: Systematic Implicationsmentioning

confidence: 76%

Karyological studies of some representatives of Tanacetum L. (Anthemideae-Asteraceae) from north-east Anatolia

et al. 2012

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“…All the studied taxa had the basic chromosome number of x = 9 (Table 1), predominant in tribe Anthemideae and the family Asteraceae (Inceer and Beyazoglu 2004 and references cited therein; Valles et al 2005;Inceer et al 2012). Seven taxa were diploid with 2n = 18, and two taxa were tetraploid with 2n = 4x = 36.…”

Section: Discussionmentioning

confidence: 99%

“…Chromosome counts in many members of Anthemideae have already been reported (e.g. Torrell et al 2001;Inceer and Beyazoglu 2004;Vallès et al 2005;Garcia et al 2006;Inceer et al 2007Inceer et al , 2012Li et al 2008;Chehregani and Mehanfar 2008;Chehregani and Hajisadeghian 2009;Chehregani et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Karyomorphological study of nineTanacetumtaxa (Asteraceae, Anthemideae) from Iran

et al. 2013

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Chromosome number and morphology in nine taxa belonging to 10 populations of Tanacetum L. (Asteraceae) were investigated using karyological techniques. The chromosome number found in eight species was 2n = 18 (T. balsamita, T. budjnurdense, T. sonbolii, T. archibaldii, T. persicum, T. parthenium and T. canescens) while T. polycephalum subsp. duderanum and T. polycephalum subsp. azerbaidjanicum had 2n = 36. Six records are new while four records confirmed the previous data. At mitotic metaphase, all chromosomes had median point (M), median region (m), submedian (sm) or subterminal (st) centromeres. The karyotypes are classified in types 2A or 2B, showing the presence of a primitive symmetrical karyotype in the genus Tanacetum. An updated checklist of karyological data of the genus is also presented.

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“…According to the Ozcan et al (2011) the diverging karyological results may arise from intraspecific karyological differentiation. Hayırlıoglu-Ayaz and Beyazoglu (2000) and Inceer and Beyazoglu (2004) reported that specimens collected from various geographical regions have different chromosome numbers.…”

Section: Discussionmentioning

confidence: 99%

Karyological studies on the annual members of the genusCarduusL. (Asteraceae, Cardueae) from Turkey

et al. 2014

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The somatic chromosome numbers and detailed morphometric properties of eight of the nine annual Turkish Carduus L. taxa were examined. The somatic chromosome numbers were 2n = 2x = 22 in C. rechingerianus Kazmi; 2n = 2x = 28 in C. argentatus L., C. acicularis Bertol. and C. pycnocephalus L. subsp. albidus (M. Bieb.) Kazmi; 2n = 2x = 34 in C. pycnocephalus subsp. arabicus (Jacq. ex Murray) Nyman and subsp. breviphyllarius P. H. Davis; 2n = 2x = 50 in C. nervosus K. Koch.; and 2n = 2x = 62 in C. pycnocephalus subsp. pycnocephalus. Karyotype analysis indicated that chromosomes of the Carduus taxa generally have centromere median region (m), submedian region (sm), and rarely median point (M) of the chromosome. A pair of satellite chromosomes (sat-chromosome) was observed in C. pycnocephalus subsp. breviphyllarius. The findings for each of the analysed taxa are compared with the results of previous studies. The chromosome number and morphology of C. nervosus, C. rechingerianus, C. argentatus, C. pycnocephalus subsp. arabicus and subsp. breviphyllarius are newly reported here.

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Karyological studies in Tripleurospermum (Asteraceae, Anthemideae) from north-east Anatolia

Cited by 25 publications

References 10 publications

Karyological studies of some representatives of Tanacetum L. (Anthemideae-Asteraceae) from north-east Anatolia

Karyological studies of some representatives of Tanacetum L. (Anthemideae-Asteraceae) from north-east Anatolia

Karyomorphological study of nineTanacetumtaxa (Asteraceae, Anthemideae) from Iran

Karyological studies on the annual members of the genusCarduusL. (Asteraceae, Cardueae) from Turkey

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