Molecular phylogenetics, historical biogeography, and chromosome number evolution of Portulaca (Portulacaceae)

Ocampo, Gilberto; Columbus, J. Travis

doi:10.1016/j.ympev.2011.12.017

Cited by 99 publications

(136 citation statements)

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“…To elucidate the phylogenetic relationship between P. boninensis and related species, ITS data previously provided by Ocampo & Columbus (2012), and Kokubugata et al (2013) were considered. A total of 36 accessions for 34 Portulaca taxa were obtained from DDBJ (Table 1).…”

Section: Its Data From Dna Databasementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…a monotypic family according to the molecular studies by Nyffeler & Eggli (2010), and Ocampo & Columbus (2012). The genus has a worldwide distribution, mostly in the tropics and subtropics, and comprises over than 100 species (Ocampo & Columbus 2012). P. boninensis Tuyama (1939: 6) was described on the basis of a specimen collected from Chichi-jima Island of the Bonin (Ogasawara) Islands, which are oceanic islands about 1000 km south of Japan proper.…”

Section: Introductionmentioning

confidence: 99%

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Taxonomic reexamination of Portulaca boninensis (Portulacaceae) in the Bonin (Ogasawara) Islands of Japan using molecular and morphological data

Kokubugata¹,

Kato²,

Iamonico³

et al. 2015

Phytotaxa

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Molecular phylogenetic analyses, morphological observations, and nomenclatural studies were carried out to investigate the taxonomic status of Portulaca boninensis, endemic species from the Bonin (Ogasawara) Islands (Japan). The results addressed controversy between the widely naturalized P. boninensis and P. pilosa, indicating that they are phylogenetically and morphologically distinct. Furthermore, P. boninensis was showed to be conspecific to P. psammotropha which is until now recorded in southern China, Taiwan, and the northern Philippines, but not in the Ryukyus. The name of P. psammotropha was lectotypified on a specimen preserved at K. Based on phylogeography, P. psammotropha likely migrated to the Oceanic Bonin Islands oversea by sea-current dispersal or by exo-and/or end ozoochory through migratory birds without passing through Ryukyus.

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Section: Its Data From Dna Databasementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Taxonomic reexamination of Portulaca boninensis (Portulacaceae) in the Bonin (Ogasawara) Islands of Japan using molecular and morphological data

Kokubugata¹,

Kato²,

Iamonico³

et al. 2015

Phytotaxa

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“…The area of origin of P. oleracea L. is not known (Ocampo and Columbus, 2012). Ridely (1930) and Hagerup (1932) considered it as a native of the North African deserts.…”

Section: Introductionmentioning

confidence: 99%

“…Mitich (1997) cited West Asia and Europe as its area of origin. Recently, Ocampo and Columbus (2012) studied the molecular phylogenetics of Portulaca. They stated that P. oleracea represents a nonmonophyletic taxon, with P. oleracea subsp.…”

Section: Introductionmentioning

confidence: 99%

First data on the taxonomic diversity of the Portulaca oleraceaaggregate (Portulacaceae) in Iran

Rad¹,

Sajedi²,

Domina³

2017

Turk J Bot

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The review of specimens from Iran belonging to the Portulaca oleracea L. aggregate resulted in the recognition of six microspecies: P. cypria Danin, P. granulatostellulata (Poelln.) Ricceri & Arrigoni, P. nitida (Danin & H.G.Baker) Ricceri & Arrigoni, P. rausii Danin, P. socotrana Domina & Raimondo, and P. trituberculata Danin, Domina & Raimondo, all reported for the first time for the flora of Iran. The identification was based on the microscopic study of seeds. It is noted that P. oleracea is not confirmed for Iran. Distribution data and an identification key for Portulaca microspecies in Iran are presented.

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Global distribution, climatic preferences and photosynthesis‐related traits of C₄ eudicots and how they differ from those of C₄ grasses

Berasategui,

Žerdoner Čalasan,

Zizka

et al. 2023

Ecology and Evolution

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C₄ is one of three known photosynthetic processes of carbon fixation in flowering plants. It evolved independently more than 61 times in multiple angiosperm lineages and consists of a series of anatomical and biochemical modifications to the ancestral C3 pathway increasing plant productivity under warm and light‐rich conditions. The C4 lineages of eudicots belong to seven orders and 15 families, are phylogenetically less constrained than those of monocots and entail an enormous structural and ecological diversity. Eudicot C4 lineages likely evolved the C4 syndrome along different evolutionary paths. Therefore, a better understanding of this diversity is key to understanding the evolution of this complex trait as a whole. By compiling 1207 recognised C4 eudicots species described in the literature and presenting trait data among these species, we identify global centres of species richness and of high phylogenetic diversity. Furthermore, we discuss climatic preferences in the context of plant functional traits. We identify two hotspots of C4 eudicot diversity: arid regions of Mexico/Southern United States and Australia, which show a similarly high number of different C4 eudicot genera but differ in the number of C4 lineages that evolved in situ. Further eudicot C4 hotspots with many different families and genera are in South Africa, West Africa, Patagonia, Central Asia and the Mediterranean. In general, C4 eudicots are diverse in deserts and xeric shrublands, tropical and subtropical grasslands, savannas and shrublands. We found C4 eudicots to occur in areas with less annual precipitation than C4 grasses which can be explained by frequently associated adaptations to drought stress such as among others succulence and salt tolerance. The data indicate that C4 eudicot lineages utilising the NAD‐ME decarboxylating enzyme grow in drier areas than those using the NADP‐ME decarboxylating enzyme indicating biochemical restrictions of the later system in higher temperatures. We conclude that in most eudicot lineages, C4 evolved in ancestrally already drought‐adapted clades and enabled these to further spread in these habitats and colonise even drier areas.

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Molecular phylogenetics, historical biogeography, and chromosome number evolution of Portulaca (Portulacaceae)

Cited by 99 publications

References 80 publications

Taxonomic reexamination of Portulaca boninensis (Portulacaceae) in the Bonin (Ogasawara) Islands of Japan using molecular and morphological data

Taxonomic reexamination of Portulaca boninensis (Portulacaceae) in the Bonin (Ogasawara) Islands of Japan using molecular and morphological data

First data on the taxonomic diversity of the Portulaca oleraceaaggregate (Portulacaceae) in Iran

Global distribution, climatic preferences and photosynthesis‐related traits of C₄ eudicots and how they differ from those of C₄ grasses

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Molecular phylogenetics, historical biogeography, and chromosome number evolution of Portulaca (Portulacaceae)

Cited by 99 publications

References 80 publications

Taxonomic reexamination of Portulaca boninensis (Portulacaceae) in the Bonin (Ogasawara) Islands of Japan using molecular and morphological data

Taxonomic reexamination of Portulaca boninensis (Portulacaceae) in the Bonin (Ogasawara) Islands of Japan using molecular and morphological data

First data on the taxonomic diversity of the Portulaca oleraceaaggregate (Portulacaceae) in Iran

Global distribution, climatic preferences and photosynthesis‐related traits of C4 eudicots and how they differ from those of C4 grasses

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Global distribution, climatic preferences and photosynthesis‐related traits of C₄ eudicots and how they differ from those of C₄ grasses