Taxonomy and chorology of Corbichonia (Lophiocarpaceae s.l.) with further description of a new species from Southern Africa

Sukhorukov, Alexander P.; Kushunina, Maria

doi:10.11646/phytotaxa.218.3.2

Cited by 7 publications

(3 citation statements)

References 25 publications

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“…(Talinaceae: Veselova et al., 2012 ; Moises Mendoza and Wood, 2013 ) and Corbichonia Scop. (Lophiocarpaceae: Sukhorukov and Kushunina, 2015 ), waxes are absent. Seeds from nut-like or synaptospermic fruits also lack waxes on their surface (Aizoaceae: Mesembryanthemum nucifer , Anisostigma schenckii , and Tribulocarpus spp.…”

Section: Discussionmentioning

confidence: 99%

“…Depressed-roundish and kidney-shaped (including drop-like) seeds are widespread in Aizoaceae and are prevalent in many other Caryophyllales families, such as Caryophyllaceae (Gvinianidze and Fedotova, 1991), Portulacaceae (Ocampo, 2013), Amaranthaceae s.l. (Sukhorukov, 2014), Lophiocarpaceae (Sukhorukov and Kushunina, 2015), and some Petiveriaceae and Molluginaceae (Sukhorukov et al, 2018b). D-shaped seeds have been documented in some Molluginaceae (Sukhorukov and Kushunina, 2017).…”

Section: Comparison Of Seeds Between Aizoaceae and Other Caryophyllalesmentioning

confidence: 99%

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Evolution of seed characters and of dispersal modes in Aizoaceae

Sukhorukov

Nilova²,

Kushunina³

et al. 2023

Front. Plant Sci.

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The family Aizoaceae includes ~1880 species and is one of the more diverse groups within Caryophyllales, particularly in arid areas in the western part of southern Africa. Most species are dwarf succulent-leaf shrubs. In response to the harsh climatic conditions prevalent where they occur, many representatives have evolved special reproductive adaptations. These include hygrochastic capsules (mostly found in Mesembryanthemoideae and Ruschioideae), burr-like indehiscent and one-seeded, winged diaspores, and fast germination of seeds after rain. We focused on anatomical features, evolutionary trends, and the ecological significance of various morpho-anatomical structures found in the seeds. The seeds of 132 species from 61 genera were studied, and 18 diagnostic characters were discovered. All studied characters were compared with those of other families from core Caryophyllales. The seed notch and embryo shape were added to the list of characteristics distinguishing major clades within the family. In addition, the presence of longitudinal ridges and a keel on the seed are additional characters of Aizooideae and combined Ruschioideae-Apatesieae, respectively. Puzzle-like borders of testa cells are a common trait in Ruschioideae and Mesembryanthemoideae. Most taxa in Aizoaceae have a thin seed coat, which is the ancestral state within the family. This may facilitate fast germination. We observed several shifts to a medium-thick or thick seed coat in members of Ruschioideae and Acrosanthoideae. These inhabit fire-prone environments (in vegetation types known as fynbos and renosterveld), where the thickened seed coat may protect against damage by fire. Multi-seeded fruits are the ancestral state within Aizoaceae, with several shifts to one-(two-)seeded xerochastic fruits. The latter are dispersed via autochory, zoochory, or anemochory. This trait has evolved mainly in less succulent subfamilies Acrosanthoideae, Aizooideae, and Sesuvioideae. In highly succulent subfamilies Ruschioideae and Mesembryanthemoideae, fruits are almost exclusively multi-seeded and hygrochastic with ombrohydrochoric dispersal. A reduction in the number of seeds within a dispersal unit is rare. Within Apatesieae and Ruschieae, there are also a few unusual genera whose fruits fall apart into one- to two-seeded mericarps (that are mainly dispersed by wind).

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Section: Discussionmentioning

confidence: 99%

Section: Comparison Of Seeds Between Aizoaceae and Other Caryophyllalesmentioning

confidence: 99%

Evolution of seed characters and of dispersal modes in Aizoaceae

Sukhorukov

Nilova²,

Kushunina³

et al. 2023

Front. Plant Sci.

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“…Another successful example of monographic processing is the revision of the African Corbichonia (Lophiocarpaceae) genus, which included only two species [140]. A third species, C. exellii , which is spread over several countries of Southern Africa at once, has been discovered and certified.…”

Section: Plantsmentioning

confidence: 99%

“Noah’s Ark” Project: Interim Results and Outlook for Classic Collection Development

et al. 2018

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ANIMALSThe purpose of a biobank is to accumulate collections that adequately reflect the multidimensional structure of biodiversity (BD), making it possible to explore its various manifestations. An analysis of the scientific status of zoological collections was carried out [1], and it was shown that the collections perform the function of a research sample in BD studies. Their main characteristics are their representativeness, which is further detailed by their informational value, reliability, systemic character, scope, structure, etc.The studies in the "Animals" section are aimed at analyzing key aspects of BD on the basis of an integrated approach combining phylogenomic and phylo-ABSTRACT The "Noah's Ark" project, afoot at M.V. Lomonosov Moscow State University since 2015 and aimed at studying biodiversity, is the largest ongoing Russian project in life sciences. During its implementation, several hundred new species have been described; a comprehensive genetic and biochemical characterization of these species, as well as that of the pre-existing specimens in Moscow University's collections, has been performed. A consolidated IT system intended to house the knowledge generated by the project has been developed. Here, we summarize the investigations around the Moscow University classical biocollections which have taken place within the framework of the project and discuss future promise and the outlook for these collections.

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Taxonomic significance of seed morphology in the genusMollugos.l. (Molluginaceae)

Sukhorukov¹,

Kushunina²

2017

Israel Journal of Plant Sciences

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Taxonomy and chorology of Corbichonia (Lophiocarpaceae s.l.) with further description of a new species from Southern Africa

Cited by 7 publications

References 25 publications

Evolution of seed characters and of dispersal modes in Aizoaceae

Evolution of seed characters and of dispersal modes in Aizoaceae

“Noah’s Ark” Project: Interim Results and Outlook for Classic Collection Development

Taxonomic significance of seed morphology in the genusMollugos.l. (Molluginaceae)

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