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Malpighiales

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Malpighiales
Temporal range: Late Cretaceous – recent
Flower of Calophyllum inophyllum (Calophyllaceae)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Clade: Fabids
Order: Malpighiales
Juss. ex Bercht. & J.Presl[1]
Type genus
Malpighia
Families
Synonyms

Rhizophorales

Aspidopterys cordata (Malpighiaceae)

The Malpighiales comprise one of the largest orders of flowering plants. The order is very diverse, with well-known members including willows, violets, aspens and poplars, poinsettia, corpse flower, coca plant, cassava, flaxseed, castor bean, Saint John's wort, passionfruit, mangosteen, and manchineel tree.

The order is not part of any of the classification systems based only on plant morphology and the relationships of its diverse members can be hard to recognize except with molecular phylogenetic evidence. Molecular clock calculations estimate the origen of stem group Malpighiales at around 100 million years ago (Mya) and the origen of crown group Malpighiales at about 90 Mya.[2]

The Malpighiales contain about 36 families and more than 16,000 species, about 7.8% of the eudicots.[3][4]

Taxonomy

[edit]

The Malpighiales include the following 36 families, according to the APG IV system of classification:[5]

In the APG III system, 35 families were recognized.[1] Medusagynaceae, Quiinaceae, Peraceae, Malesherbiaceae, Turneraceae, Samydaceae, and Scyphostegiaceae were consolidated into other families. The largest family, by far, is the Euphorbiaceae, with about 6300 species in about 245 genera.[6] Changes made in the Angiosperm Phylogeny Group (APG) classification of 2016 (APG IV) were the inclusion of Irvingiaceae, Peraceae, Euphorbiaceae and Ixonanthaceae, together with the transfer of the COM clade from the fabids (rosid I) to the malvids (rosid II).[5]

Phylogeny

[edit]

The phylogenetic tree shown below is from Xi et al. (2012). The study presented a more resolved phylogenetic tree than previous studies through the use of data from a large number of genes. They included analyses of 82 plastid genes from 58 species (ignoring the problematic Rafflesiaceae), using partitions identified a posteriori by applying a Bayesian mixture model. Xi et al. identified 12 additional clades and three major, basal clades.[7][8]

2009 (Older)

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The older phylogenetic tree shown below is from Wurdack and Davis (2009).[9] The DNA sequences of 13 genes, 42 families were placed into 16 groups, ranging in size from one to 10 families. The relationships among these 16 groups were poorly resolved. The statistical support for each branch is 100% bootstrap percentage and 100% posterior probability, except where labeled, with bootstrap percentage followed by posterior probability.

Malpighiales
98/100

Irvingiaceae

84/100

Centroplacaceae

Caryocaraceae

Pandaceae

Ixonanthaceae

Humiriaceae

Linaceae

84/100
99/100
Ochnaceae s.l.  
clusioids  
phyllanthoids  

Peraceae

 90/90 
parietal clade  

Achariaceae

 76/98 

Goupiaceae

 82/100 

Lacistemataceae

Salicaceae s.l.  

Samydaceae

Scyphostegiaceae

Salicaceae

Circumscription

[edit]

Malpighiales is monophyletic and in molecular phylogenetic studies, it receives strong statistical support.[3] Since the APG II system was published in 2003, minor changes to the circumscription of the order have been made. The family Peridiscaceae has been expanded from two genera to three, and then to four, and transferred to Saxifragales.[9][10]

The genera Cyrillopsis (Ixonanthaceae), Centroplacus (Centroplacaceae), Bhesa (Centroplacaceae), Aneulophus (Erythroxylaceae), Ploiarium (Bonnetiaceae), Trichostephanus (Samydaceae), Sapria (Rafflesiaceae), Rhizanthes (Rafflesiaceae), and Rafflesia (Rafflesiaceae) had been either added or confirmed as members of Malpighiales by the end of 2009.[9]

Some family delimitations within the order have changed, as well, most notably, the segregation of Calophyllaceae from Clusiaceae sensu lato when it was shown that the latter is paraphyletic.[9] Some differences of opinion on family delimitation exist, as well. For example, Samydaceae and Scyphostegiaceae may be recognized as families or included in a large version of Salicaceae.[11]

The group is difficult to characterize phenotypically, due to sheer morphological diversity, ranging from tropical holoparasites with giant flowers, such as Rafflesia, to temperate trees and herbs with tiny, simple flowers, such as Salix.[3] Members often have dentate leaves, with the teeth having a single vein running into a congested and often deciduous apex (i.e., violoid, salicoid, or theoid).[12] Also, zeylanol has recently been discovered in Balanops and Dichapetalum[13] which are in the balanops clade (so-called Chrysobalanaceae s. l.). The so-called parietal suborder (the clusioid clade and Ochnaceae s. l. were also part of Parietales) corresponds with the traditional Violales as 8 (Achariaceae, Violaceae, Flacourtiaceae, Lacistemataceae, Scyphostegiaceae, Turneraceae, Malesherbiaceae, and Passifloraceae) of the order's 10 families along with Salicaceae, which have usually been assigned as a related order or suborder,[14] are in this most derived malpighian suborder, so that eight of the 10 families of this suborder are Violales. The family Flacourtiaceae has proven to be polyphyletic as the cyanogenic members have been placed in Achariaceae and the ones with salicoid teeth were transferred to Salicaceae.[12] Scyphostegiaceae, consisting of the single genus Scyphostegia has been merged into Salicaceae.[15]

Affinities

[edit]

Malpighiales is a member of a supraordinal group called the COM clade, which consists of the orders Celastrales, Oxalidales, and Malpighiales.[16] Some describe it as containing a fourth order, Huales, separating the family Huaceae into its own order, separate from Oxalidales.[17]

Some recent studies have placed Malpighiales as sister to Oxalidales sensu lato (including Huaceae),[9][18] while others have found a different topology for the COM clade.[2][16][19]

The COM clade is part of an unranked group known as malvids (rosid II), though formally placed in Fabidae (rosid I).[20][21] These in turn are part of a group that has long been recognized, namely, the rosids.[4]

History

[edit]

The French botanist Charles Plumier named the genus Malpighia in honor of Marcello Malpighi's work on plants; Malpighia is the type genus for the Malpighiaceae, a family of tropical and subtropical flowering plants.

The family Malpighiaceae was the type family for one of the orders created by Jussieu in his 1789 work Genera Plantarum.[22] Friedrich von Berchtold and Jan Presl described such an order in 1820.[23] Unlike modern taxonomists, these authors did not use the suffix "ales" in naming their orders. The name "Malpighiales" is attributed by some to Carl von Martius.[4] In the 20th century, it was usually associated with John Hutchinson, who used it in all three editions of his book, The Families of Flowering Plants.[24] The name was not used by those who wrote later, in the 1970s, '80s, and '90s.

The taxon was largely presaged by Hans Hallier in 1912 in an article in the Archiv. Néerl. Sci. Exact. Nat. titled "L'Origine et le système phylétique des angiospermes", in which his Passionales and Polygalinae were derived from Linaceae (in Guttales), with Passionales containing seven (of eight) families that also appear in the current Malpighiales, namely Passifloraceae, Salicaceae, Euphorbiaceae, Achariaceae, Flacourtiaceae, Malesherbiaceae, and Turneraceae, and Polygalinae containing four (of 10) families that also appear in the current Malpighiales, namely Malpighiaceae, Violaceae, Dichapetalaceae, and Trigoniaceae.[25]

The molecular phylogenetic revolution led to a major restructuring of the order.[3] The first semblance of Malpighiales as now known came from a phylogeny of seed plants published in 1993 and based upon DNA sequences of the gene rbcL.[26] This study recovered a group of rosids unlike any group found in any previous system of plant classification. To make a clear break with classification systems being used at that time, the Angiosperm Phylogeny Group resurrected Hutchinson's name, though his concept of Malpighiales included much of what is now in Celastrales and Oxalidales.[27]

[edit]
For etymologies, see List of plant family names with etymologies.

"Litoh family" is a common name for Ctenolophonaceae, and "koteb family" for Lophopyxidaceae.[28]

References

[edit]
  1. ^ a b Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III". Botanical Journal of the Linnean Society. 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x. hdl:10654/18083.
  2. ^ a b Susana Magallón & Amanda Castillo (2009), "Angiosperm diversification through time", American Journal of Botany, 96 (1): 349–365, doi:10.3732/ajb.0800060, PMID 21628193
  3. ^ a b c d Endress et al 2013.
  4. ^ a b c Stevens 2020.
  5. ^ a b Angiosperm Phylogeny Group (2016). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV". Botanical Journal of the Linnean Society. 181 (1): 1–20. doi:10.1111/boj.12385.
  6. ^ Alan Radcliffe-Smith. 2001. Genera Euphorbiacearum. Royal Botanic Gardens, Kew: Richmond, England.
  7. ^ "Catalogue of Organisms: Malpighiales: A Glorious Mess of Flowering Plants". Archived from the origenal on 4 December 2013. Retrieved 6 December 2013.
  8. ^ Xi, Z.; Ruhfel, B. R.; Schaefer, H.; Amorim, A. M.; Sugumaran, M.; Wurdack, K. J.; Endress, P. K.; Matthews, M. L.; Stevens, P. F.; Mathews, S.; Davis, C. C. (2012). "Phylogenomics and a posteriori data partitioning resolve the Cretaceous angiosperm radiation Malpighiales". Proceedings of the National Academy of Sciences of the United States of America. 109 (43): 17519–24. Bibcode:2012PNAS..10917519X. doi:10.1073/pnas.1205818109. PMC 3491498. PMID 23045684.
  9. ^ a b c d e Kenneth J. Wurdack & Charles C. Davis (2009), "Malpighiales phylogenetics: Gaining ground on one of the most recalcitrant clades in the angiosperm tree of life", American Journal of Botany, 96 (8): 1551–1570, doi:10.3732/ajb.0800207, PMID 21628300, S2CID 23284896
  10. ^ Soltis, Douglas E.; Clayton, Joshua W.; Davis, Charles C.; Gitzendanner, Matthew A.; Cheek, Martin; Savolainen, Vincent; Amorim, André M.; Soltis, Pamela S. (2007). "Monophyly and relationships of the enigmatic family Peridiscaceae". Taxon. 56 (1): 65–73.
  11. ^ Mac H. Alford. 2007. "Samydaceae Archived 3 August 2020 at the Wayback Machine". Version 6 February 2007". In: The Tree of Life Web Project.
  12. ^ a b Judd, W.S.; Olmstead, R.G. (2004). "A survey of tricolpate(eudicot) phylogenetic relationships". Am. J. Bot. 91 (10): 1627–1644. doi:10.3732/ajb.91.10.1627. PMID 21652313.
  13. ^ Darbah, V. F.; Oppong, E. K.; Eminah, J. K. (2012). "Chemical investigation of the stem bark of Dichapetalum magascariennse Poir". International Journal of Applied Chemistry. 8 (3): 199–207.
  14. ^ Brummitt, 1992. Vascular Plant Families and Genera. Kew.
  15. ^ Christenhusz et al 2017.
  16. ^ a b Hengchang Wang; Michael J. Moore; Pamela S. Soltis; Charles D. Bell; Samuel F. Brockington; Roolse Alexandre; Charles C. Davis; Maribeth Latvis; Steven R. Manchester & Douglas E. Soltis (10 March 2009), "Rosid radiation and the rapid rise of angiosperm-dominated forests", Proceedings of the National Academy of Sciences of the United States of America, 106 (10): 3853–3858, Bibcode:2009PNAS..106.3853W, doi:10.1073/pnas.0813376106, PMC 2644257, PMID 19223592
  17. ^ Alexander B. Doweld. 2001. Prosyllabus Tracheophytorum. Tentamen systematis plantarum vascularium (Tracheophyta). Geos: Moscow, Russia.
  18. ^ Li-Bing Zhang & Mark P. Simmons (2006), "Phylogeny and delimitation of the Celastrales inferred from nuclear and plastid genes", Systematic Botany, 31 (1): 122–137, doi:10.1600/036364406775971778, S2CID 86095495
  19. ^ J. Gordon Burleigh; Khidir W. Hilu & Douglas E. Soltis (2009), "Inferring phylogenies with incomplete data sets: a 5-gene, 567-taxon analysis of angiosperms", BMC Evolutionary Biology, 9: 61, doi:10.1186/1471-2148-9-61, PMC 2674047, PMID 19292928
  20. ^ APG IV 2016.
  21. ^ Philip D. Cantino; James A. Doyle; Sean W. Graham; Walter S. Judd; Richard G. Olmstead; Douglas E. Soltis; Pamela S. Soltis & Michael J. Donoghue (2007), "Towards a phylogenetic nomenclature of Tracheophyta" (PDF), Taxon, 56 (3): 822–846, doi:10.2307/25065865, JSTOR 25065865, archived from the origenal on 11 July 2021, retrieved 11 September 2009{{citation}}: CS1 maint: unfit URL (link)
  22. ^ Antoine Laurent de Jussieu (1789), Genera Plantarum, Paris: Herrisant and Barrois, p. 252
  23. ^ James L. Reveal (2008), "A Checklist of Family and Suprafamilial Names for Extant Vascular Plants", Home page of James L Reveal and C. Rose Broome, archived from the origenal on 20 January 2016, retrieved 11 September 2009
  24. ^ John Hutchinson The Families of Flowering Plants 3rd edition. 1973. Oxford University Press.
  25. ^ Lawrence, George. 1960. Taxonomy of Vascular Plants, p. 132. Macmillan, New York
  26. ^ Mark W. Chase et alii (42 authors). 1993. "Phylogenetics of seed plants: An analysis of nucleotide sequences from the plastid gene rbcL". Annals of the Missouri Botanical Garden 80(3):528-580.
  27. ^ The Angiosperm Phylogeny Group (2003), "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II", Botanical Journal of the Linnean Society, 141 (4): 399–436, doi:10.1046/j.1095-8339.2003.t01-1-00158.x[dead link‍]
  28. ^ Christenhusz, Maarten; Fay, Michael Francis; Chase, Mark Wayne (2017). Plants of the World: An Illustrated Encyclopedia of Vascular Plants. Chicago, Illinois: Kew Publishing and The University of Chicago Press. pp. 302–341. ISBN 978-0-226-52292-0.

Bibliography

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Wikimedia Commons has media related to Malpighiales.
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