Extensive chromosome number variation in Aster ageratoides var. pendulus (Asteraceae)
نویسندگان
چکیده
منابع مشابه
Cytological features of the Aster ageratoides complex (Asteraceae) in Taiwan
Chromosome cytology was examined in two species of the Aster ageratoides complex, A. ageratoides Turcz. (= A. leiophyllus Franch. et Sav.) and A. lasioclada Hayata, in Taiwan. Of the 70 individuals of A. ageratoides sampled, one was found to be diploid (2n = 18) and the rest tetraploid (2n = 36, 37). The occurrence of the diploid A. ageratoides in Taiwan appears to be ancient. Eighteen individu...
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Different ploidy levels, diploid (2n=2x=24) to hexaploid (2n=6x=72) have been reported for Acorus calamus, a perennial medicinal plant. According to available information, there is a significant relationship between the ploidy level and essential oil compositions and medicinal properties of this important genetic resource. However, there is no information about the chromosome number of A. calam...
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متن کاملExtensive chromosomal variation in a recently formed natural allopolyploid species, Tragopogon miscellus (Asteraceae).
Polyploidy, or whole genome duplication, has played a major role in the evolution of many eukaryotic lineages. Although the prevalence of polyploidy in plants is well documented, the molecular and cytological consequences are understood largely from newly formed polyploids (neopolyploids) that have been grown experimentally. Classical cytological and molecular cytogenetic studies both have show...
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ژورنال
عنوان ژورنال: Botanical Journal of the Linnean Society
سال: 2011
ISSN: 0024-4074
DOI: 10.1111/j.1095-8339.2011.01114.x