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The Malagasy enigma...
The Malagasy enigmatic genus Apodocephala (Asteraceae), a new member of the tribe Athroismeae
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- Bengtson, Annika (author)
- Naturhistoriska riksmuseet,Enheten för botanik
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- Anderberg, Arne A. (author)
- Naturhistoriska riksmuseet,Enheten för botanik
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- Razafimandimbison, Sylvain G. (author)
- Naturhistoriska riksmuseet,Enheten för botanik
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(creator_code:org_t)
- Botanic Garden and Botanical Museum Berlin, Freie Universitaet Berlin, 2021
- 2021
- English.
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In: Willdenowia. - : Botanic Garden and Botanical Museum Berlin, Freie Universitaet Berlin. - 0511-9618 .- 1868-6397. ; 51:2, s. 221-230
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https://doi.org/10.3...
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https://bioone.org/j...
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Abstract
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- Apodocephala is a small genus of nine species of shrubs and trees endemic to Madagascar and currently classified in the tribe Astereae (Asteraceae). However, its present tribal position has been questioned, as it lacks some of the salient morphological features of that tribe. This study includes for the first time DNA sequences from Apodocephala (two species including the type of the generic name) to test its phylogenetic position. Phylogenetic analyses based on sequence data from nuclear ribosomal (ETS and ITS) and plastid (ndhF and trnL–trnF) DNA regions, using Bayesian inference and maximum parsimony methods, strongly reject the placement of Apodocephala in the Astereae. Our results, instead, support its position as sister to the Malagasy monospecific genus Lowryanthus within the tribe Athroismeae. Morphological comparison of these sister genera reveal similarities in cypsela morphology, and the inclusion of Apodocephala in the subtribe Lowryanthinae is proposed here. The tribe Athroismeae is now represented by ten genera (Anisochaeta, Anisopappus, Apodocephala, Artemisiopsis, Athroisma, Blepharispermum, Centipeda, Leucoblepharis, Lowryanthus and Symphyllocarpus), six of which occur in Madagascar. The Malagasy Athroismeae occur in all Malagasy terrestrial ecosystems (rainforests, deciduous dry forests, thicket spiny forests and savannas) and are likely the result of multiple independent colonization events mostly from mainland Africa.
Subject headings
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biologisk systematik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biological Systematics (hsv//eng)
Keyword
- Plant Science
- Ecology
- Evolution
- Behavior and Systematics
- Diversity of life
- Livets mångfald
Publication and Content Type
- ref (subject category)
- art (subject category)
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