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Evolution of wood a...
Evolution of wood anatomical characters in Nepenthes and close relatives of Caryophyllales
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- Schwallier, Rachel (författare)
- Nat Biodivers Ctr, POB 9517, NL-2300 RA Leiden, Netherlands.;Grand Valley State Univ, 1 Campus Dr, Allendale, MI 49401 USA.
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- Gravendeel, Barbara (författare)
- Nat Biodivers Ctr, POB 9517, NL-2300 RA Leiden, Netherlands.;Leiden Univ, Inst Biol Leiden, Sylviusweg 72, NL-2333 CC Leiden, Netherlands.;Univ Appl Sci Leiden, Zernikedreef 11, NL-2300 AJ Leiden, Netherlands.
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- de Boer, Hugo (författare)
- Uppsala universitet,Systematisk biologi,Nat Biodivers Ctr, POB 9517, NL-2300 RA Leiden, Netherlands.;Univ Oslo, Nat Hist Museum, POB 1172, N-0318 Oslo, Norway.
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- Nylinder, Stephan, 1975 (författare)
- Gothenburg University,Göteborgs universitet,Psykologiska institutionen,Extern,Department of Psychology,External,Swedish Museum Nat Hist, Frescativagen 40, S-11418 Stockholm, Sweden.
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- Van Heuven, Bertie Joan (författare)
- Nat Biodivers Ctr, POB 9517, NL-2300 RA Leiden, Netherlands.
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- Sieder, Anton (författare)
- Univ Vienna, Univ Ring 1, A-1010 Vienna, Austria.
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- Sumail, Sukaibin (författare)
- Sabah Pk Herbarium, POB 6,Kinabalu Pk, Ranau, Sabah, Malaysia.
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- Van Vugt, Rogier (författare)
- Leiden Univ, Hortus Botanicus, Rapenburg 73, NL-2311 GJ Leiden, Netherlands.
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- Lens, Frederic (författare)
- Nat Biodivers Ctr, POB 9517, NL-2300 RA Leiden, Netherlands.
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Nat Biodivers Ctr, POB 9517, NL-2300 RA Leiden, Netherlands;Grand Valley State Univ, 1 Campus Dr, Allendale, MI 49401 USA. Nat Biodivers Ctr, POB 9517, NL-2300 RA Leiden, Netherlands.;Leiden Univ, Inst Biol Leiden, Sylviusweg 72, NL-2333 CC Leiden, Netherlands.;Univ Appl Sci Leiden, Zernikedreef 11, NL-2300 AJ Leiden, Netherlands. (creator_code:org_t)
- 2017-04-06
- 2017
- Engelska.
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Ingår i: Annals of Botany. - : Oxford University Press (OUP). - 0305-7364 .- 1095-8290. ; 119:7, s. 1179-1193
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https://academic.oup...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- © The Author 2017. Background and Aims Nepenthes attracts wide attention with its spectacularly shaped carnivorous pitchers, cultural value and horticultural curiosity. Despite the plant's iconic fascination, surprisingly little anatomical detail is known about the genus beyond its modified leaf tip traps. Here, the wood anatomical diversity of Nepenthes is explored. This diversity is further assessed with a phylogenetic framework to investigate whether the wood characters within the genus are relevant from an evolutionary or ecological perspective, or rather depend on differences in developmental stages, growth habits, substrates or precipitation. Methods Observations were performed using light microscopy and scanning electron microscopy. Ancestral states of selected wood and pith characters were reconstructed using an existing molecular phylogeny for Nepenthes and a broader Caryophyllales framework. Pairwise comparisons were assessed for possible relationships between wood anatomy and developmental stages, growth habits, substrates and ecology. Key Results Wood anatomy of Nepenthes is diffuse porous, with mainly solitary vessels showing simple, bordered perforation plates and alternate intervessel pits, fibres with distinctly bordered pits (occasionally septate), apotracheal axial parenchyma and co-occurring uni- and multiseriate rays often including silica bodies. Precipitation and growth habit (stem length) are linked with vessel density and multiseriate ray height, while soil type correlates with vessel diameter, vessel element length and maximum ray width. For Caryophyllales as a whole, silica grains, successive cambia and bordered perforation plates are the result of convergent evolution. Peculiar helical sculpturing patterns within various cell types occur uniquely within the insectivorous clade of non-core Caryophyllales. Conclusions The wood anatomical variation in Nepenthes displays variation for some characters dependent on soil type, precipitation and stem length, but is largely conservative. The helical-banded fibre-sclereids that mainly occur idioblastically in pith and cortex are synapomorphic for Nepenthes, while other typical Nepenthes characters evolved convergently in different Caryophyllales lineages.
Ämnesord
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Utvecklingsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Developmental Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biologisk systematik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biological Systematics (hsv//eng)
Nyckelord
- Ancestral state reconstruction
- Carnivorous plants
- Caryophyllales
- Helically banded idioblasts
- Nepenthes
- Pitcher plants
- Silica grains
- Wood anatomy
- Ancestral state reconstruction
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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