Chromosome atlas of the Bulgarian vascular plants

• Autores: Ana Petrova, Kit Tan
• Localización: Phytologia Balcanica: International Journal of Balkan Flora and Vegetation, ISSN 1310-7771, Vol. 26, Nº. 2, 2020, págs. 217-427
• Idioma: inglés
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• Resumen

  • The Atlas presents the results of karyological studies of vascular plants in Bulgaria and covers 53.4% of all species distributed in the country which belong to 63.5% of the families and 62.6% of the genera in the Bulgarian vascular flora (Pteridophytes: 49.2% of the species have been studied which belong to 42.1% of the families and 44.4% of the genera in the category; Gymnosperms: 57.9% studied species which belong to 50% of the families and 71.4% of the genera; Angiosperms: 53.4% studied species from 66.9.4% of the families and 63.1% of the genera). The established chromosome numbers vary from 2n=6 (Crepis zacintha) to 2n=258 (Cystopteris fragilis), 2n=200 (Rumex hydrolapathum), 2n=144 (Cerastium moesiacum, Prunus laurocerasus), 2n=132 (Galium rubioides), and the ploidy levels vary from 2x to 20x. Diploid ploidy level (2x) predominates, being established in 66.4% of the studied species, against ca. 40% polyploid levels. The obtained results are analysed by systematic groups – ferns, gymnosperms, angiosperms (Dicotyledonae and Monocotyledonae), as well as for the groups of endemic, rare and endangered species. Generalized data for species-rich families and genera are also presented.