New or rarely reported chromosome numbers in taxa of subtribe Artemisiinae (Anthemideae, Asteraceae) from Mongolia |
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| Authors: | SÒNIA GARCIA TERESA GARNATJE SHAGDAR DARIIMAA SHAGDAR TSOOJ JOAN VALLÈS |
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| Institution: | Laboratori de Botànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s. n., 08028 Barcelona, Catalonia, Spain; Institut Botànic de Barcelona (CSIC-Ajuntament de Barcelona), Passeig del Migdia s. n., Parc de Montjuïc, 08038 Barcelona, Catalonia, Spain; Department of Biology, Mongolian State University of Education, Ulaanbaatar-48, Mongolia; Institute of Botany, Mongolian Academy of Sciences, Jukov av. 77, Ulaanbaatar-51, Mongolia |
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| Abstract: | This study encompasses 25 chromosome counts of 18 species in the subtribe Artemisiinae (tribe Anthemideae) of the family Asteraceae, from Mongolia. Most (15 species) belong to Artemisia , the largest genus of the subtribe, whereas the others come from two genera very closely related to it: Ajania (two species) and Neopallasia (one species). Eleven counts are new reports, three are not consistent with previous reports and the remainder confirm scanty earlier information. The majority of the species have x = 9 as their basic chromosome number, but there are some taxa with x = 8. Ploidy levels range from 2 x to 6 x . The presence of B-chromosomes was detected in Ajania fruticulosa . © 2006 The Linnean Society of London, Botanical Journal of the Linnean Society , 2006, 150 , 203–210. |
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| Keywords: | Ajania Artemisia B-chromosomes cytotaxonomy Compositae dysploidy karyology Neopallasia polyploidy |
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