Cytogenetic studies in the genus Pentaschistis (Poaceae: Arundinoideae)
Bothalia - African Biodiversity & Conservation
Field | Value | |
Title | Cytogenetic studies in the genus Pentaschistis (Poaceae: Arundinoideae) | |
Creator | Klopper, K. C. Spies, J. J. | |
Description | Cytogenetic studies of 45 specimens, representing 16 taxa of the genus Pentaschistis (Nees) Spach confirmed two basic chromosome numbers (x = 7, 13) for the genus. Chromosome numbers for five species and one subspecies are described for the first time, i.e. P. aimides subsp. jugorum (n = 2x = 14). P. colorata (n = 2x = 14). P densifolia (n = x = 7), P. linui (n = 6x = ± 42), P. rigidissima (n = x = 7, n = 3x = 21) and P viscidula (n = 3x = 21). Polyploidy occurs frequently and new ploidy levels are described m four of the species, namely P airoides (Nees) Stapf subsp. airoides (n = 3x = 21), P. cir- rhulosa (Thunb.) McClean (n = x = 7), P. eriostoma (Nees) Stapf (n = 3x = 39+0-4B) and P rupestris (n = 4x = 28) The majority of species form young polyploid complexes. There seems to be no correlation between cytogenetic data and morphological groupings within Pentaschistis. | |
Publisher | AOSIS | |
Date | 1998-10-06 | |
Identifier | 10.4102/abc.v28i2.643 | |
Source | Bothalia; Vol 28, No 2 (1998); 231-238 2311-9284 0006-8241 | |
Language | eng | |
Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://journals.abcjournal.aosis.co.za/index.php/abc/article/view/643/588
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