A new species of<i>Arthrocnemum</i>(Salicornioideae: Chenopodiaceae-Amaranthaceae) from West Africa, with a revised characterization of the genus

Sukhorukov, Alexander P.; Nilova, Maya V.

doi:10.1080/23818107.2016.1185033

Cited by 16 publications

(9 citation statements)

References 35 publications

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“…Based on our results, the Eurasian A. macrostachyum and North American A. subterminale belong to different clades and need to be separated. This view is also supported by the morphological study of reproductive characters by Sukhorukov & Nilova (2016). As an outcome, we describe here two new genera to correct the situation.…”

Section: Taxonomic Treatmentsupporting

confidence: 54%

“…Several new taxa have recently been described especially in Sarcocornia A.J.Scott (Steffen & al., 2009;Fuente & al., 2011Fuente & al., , 2013Yaprak, 2012), Tecticornia (Shepherd, 2007a(Shepherd, , b, 2008Shepherd & Van Leeuwen, 2007Shepherd & Lyons;), Salicornia L. (Akhani, 2008;Yaprak & Yurdakulol, 2008) and Arthrocnemum Moq. (Sukhorukov & Nilova, 2016). Halocnemum M.Bieb.…”

Section: Introductionmentioning

confidence: 99%

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Phylogeny, biogeography, systematics and taxonomy of Salicornioideae (Amaranthaceae/Chenopodiaceae) – A cosmopolitan, highly specialized hygrohalophyte lineage dating back to the Oligocene

Piirainen

Liebisch

Kadereit

2017

TAXON

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Salicornioideae (Amaranthaceae / Chenopodiaceae) comprise 11 genera and ca. 100 species of succulent halophytes distributed worldwide in coastal and inland saline habitats. Most species have peculiar articulated, seemingly leafless stems and spike-like sessile thyrses with highly reduced flowers hidden by fleshy bracts. We analysed sequence data of four markers (ETS, ITS, atpB-rbcL, matK-trnK) from 57 species, 9 subspecies, 1 variety and 2 hybrids representing all curently accepted genera using maximum likelihood, Bayesian analysis, fossil-calibrated molecular dating and ancestral area analysis. All molecular markers gave similar phylogenetic signals. Salicornioideae probably originated in Eurasia during the late Eocene-early Oligocene. The divergence of the early main clades took place in the middle Oligocene with the separation of Allenrolfea / Heterostachys, Halocnemum /Halopeplis /Halostachys /Kalidium and Arthrocnemum /Microcnemum /Tecticornia /Salicornia / Sarcocornia lineages. The latter lineage diversified most and comprises ¾ of the species of the subfamily. The Arthrocnemum macrostachyum /Microcnemum lineage diverged at the turn of the Oligocene / Miocene -while the Arthrocnemum subterminale, Tecticornia and Salicornia /Sarcocornia lineages were all present by the middle Miocene. Long-distance dispersal has taken place several times to the Americas (Allenrolfea /Heterostachys, Arthrocnemum subterminale, Salicornia /Sarcocornia), South Africa (Halopeplis, Salicornia /Sarcocornia) and Australia (Tecticornia, Salicornia /Sarcocornia). Most currently accepted genera were resolved as monophyletic. However, Sarcocornia is paraphyletic in relation to Salicornia, and Arthrocnemum proved to be polyphyletic. In addition, the name Arthrocnemum is a nomenclatural synonym of Salicornia. As a consequence, we propose the merging of Sarcocornia under Salicornia and provide 19 new nomenclatural combinations and one replacement name. For Salicornia (incl. Sarcocornia) we propose a new infrageneric classification to accommodate the four phylogenetically and geographically well-supported sublineages of the genus. We also propose abandoning the name Arthrocnemum in its current use, and describe two new genera, Arthrocaulon (Eurasia, Africa) and Arthroceras (North America), and provide three new nomenclatural combinations.

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Section: Taxonomic Treatmentsupporting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Phylogeny, biogeography, systematics and taxonomy of Salicornioideae (Amaranthaceae/Chenopodiaceae) – A cosmopolitan, highly specialized hygrohalophyte lineage dating back to the Oligocene

Piirainen

Liebisch

Kadereit

2017

TAXON

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“…Herbarium labels refer to it as a very characteristic plant of seashore communities in Senegal. Currently the construction of new buildings close to the coast is drastically damaging the natural landscapes, especially on Cape Verde Archipelago (Romeiras et al 2016, Sukhorukov and Nilova 2016) and may negatively affect the number of populations. However, at present, as there is doubt about the origin of this new subspecies (if it is native to the region), it should not be assessed for the IUCN Red List until more data is available.…”

Section: Resultsmentioning

confidence: 99%

Diagnostics, taxonomy, nomenclature and distribution of perennial Sesuvium (Aizoaceae) in Africa

Sukhorukov¹,

Nilova²,

Erst³

et al. 2018

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The taxonomy of perennial Sesuvium species in Africa has been poorly investigated until now. Previously five perennial species of Sesuvium were recognised in Africa (S. congense, S. crithmoides, S. mesembryanthemoides, S. portulacastrum, and S. sesuvioides). Based on the differing number of stamens, S. ayresii is accepted here as being distinct from S. portulacastrum. Field observations in Angola also led the authors to conclude that S. crystallinum and S. mesembryanthemoides are conspecific with S. crithmoides. A new subspecies, Sesuvium portulacastrum subsp. persoonii, is described from West Africa (Cape Verde, Gambia, Guinea-Bissau, Mauritania, Senegal). The molecular phylogeny indicates the position of S. portulacastrum subsp. persoonii within the “American lineage” as a part of the Sesuvium portulacastrum complex which needs further studies. A diagnostic key and taxonomic notes are provided for the six perennial species of Sesuvium found in Africa and recognised by the authors (S. ayresii, S. congense, S. crithmoides, S. portulacastrum subsp. portulacastrum, S. portulacastrum subsp. persoonii, S. verrucosum and the facultatively short-lived S. sesuvioides). The distribution of S. crithmoides, previously considered to be endemic to Angola, is now confirmed for the seashores of Republic of Congo and DR Congo. The American species S. verrucosum is reported for the first time for Africa (the Macaronesian islands: Cape Verde and the Canaries). It is locally naturalised in Gran Canaria, being a potentially invasive species. These findings as well as new records of S. verrucosum from Asia and the Pacific Islands confirm its proneness to transcontinental introduction. Lectotypes of S. brevifolium, S. crithmoides, S. crystallinum and S. mesembryanthemoides are selected. The seed micromorphology and anatomy of the perennial African species is studied. Compared to the seeds of some annual African Sesuvium investigated earlier, those of perennial species are smooth or slightly alveolate. The aril is one-layered and parenchymatous in all species and usually tightly covers the seed. The aril detachments from the seed coat that form a white stripe near the cotyledon area easily distinguish S. verrucosum from other species under study.

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“…A new species, Dysphania geoffreyi , has been described for areas hard-to-reach for European researchers, such as Lhasa and Bhutan [143]. Subsequently, Atriplex congolensis orach from the Democratic Republic of the Congo [144] and the Arthrocnemum franzii saltwater from the Cape Verde Islands [145] have been described.…”

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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A new species ofArthrocnemum(Salicornioideae: Chenopodiaceae-Amaranthaceae) from West Africa, with a revised characterization of the genus

Cited by 16 publications

References 35 publications

Phylogeny, biogeography, systematics and taxonomy of Salicornioideae (Amaranthaceae/Chenopodiaceae) – A cosmopolitan, highly specialized hygrohalophyte lineage dating back to the Oligocene

Phylogeny, biogeography, systematics and taxonomy of Salicornioideae (Amaranthaceae/Chenopodiaceae) – A cosmopolitan, highly specialized hygrohalophyte lineage dating back to the Oligocene

Diagnostics, taxonomy, nomenclature and distribution of perennial Sesuvium (Aizoaceae) in Africa

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

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