Abstract
In this study, cytogenetical analyses of 12 taxa belonging to the genus Genista L. and grown naturally in Turkey were conducted. These taxa include G. acanthoclada, G. albida, G. anatolica, G. aucheri, G. burdurensis, G. carinalis, G. involucrata, G. januensis subsp. lydia, G. sandrasica, G. sessilifolia, G. tinctoria and G. vuralii. Chromosome numbers of all the taxa, except G. tinctoria, are introduced to the scientific community for the first time. Somatic metaphase chromosomes of the genus were determined as 2n = 18, 36, 46, 48, 52, 72 and 144. Polyploidy was observed in the cells of G. albida (2n = 18, 2n = 4x = 36), G. tinctoria (2n = 36, 48, 2n = 4x = 96), G. januensis subsp. lydia (2n = 46, 2n = 4x = 92), G. burdurensis and G. sessilifolia (2n = 48, 2n = 4x = 96). Somatic chromosomes of the G. sandrasica are very small, thus exact ploidy level of polyploidy was not determined. Karyotype analysis of G. albida and G. involucrata were performed via an Image Analysis System. Keywords: Genista; Leguminosae; chromosome number; karyotype; Turkey. DOI: 10.3329/bjpt.v16i2.3927 Bangladesh J. Plant Taxon. 16(2): 151-156, 2009 (December)
Highlights
Fabaceae (Leguminosae) is a large family represented by 650 genera and 18,000 species in the world (Kass and Wink, 1997)
Genista is distributed in the phytogeographic regions of Mediterranean and the related European, North African and West Asian territories (Hickey and King, 1997)
Genista in Turkey is represented by 15 taxa, 14 species and one variety, and five species, namely G. aucheri, G. burdurensis, G. involucrata, G. sandrasica and G. vuralii are endemic to Turkey (Gibbs, 1970; Davis et al, 1988; Duran and Dural, 2003)
Summary
Fabaceae (Leguminosae) is a large family represented by 650 genera and 18,000 species in the world (Kass and Wink, 1997). The genus Genista L. falls under the subfamily Papilionoideae which is made up of about 90 species in the world (Hickey and King, 1997; Duran and Dural, 2003). Genista in Turkey is represented by 15 taxa, 14 species and one variety, and five species, namely G. aucheri, G. burdurensis, G. involucrata, G. sandrasica and G. vuralii are endemic to Turkey (Gibbs, 1970; Davis et al, 1988; Duran and Dural, 2003). The numbers of somatic chromosomes were determined in 12 taxa of Genista growing naturally in Turkey, and karyological attributes of selected taxa were evaluated for the first time.
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