A new section of Silene (Caryophyllaceae) including a new species from South Anatolia, Turkey

Aydın, Zeynep Gökçe Gayretli; Ertekin, A. Selçuk; Långström, Elisabeth; Oxelman, Bengt

doi:10.11646/phytotaxa.178.2.2

Cited by 21 publications

(7 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1782 species complex includes a number of highly similar annual species that are found in the Eastern Mediterranean Region, especially southern Anatolia (Coode and Cullen 1967;Erixon and Oxelman 2008;Aydin et al 2014a). A recent study based on six nuclear loci revealed several cryptic species in the group (Toprak et al 2016).…”

Section: Bernard E Pfeil and Zeynep Toprak Are Equal Contributorsmentioning

confidence: 99%

Recombination provides evidence for ancient hybridisation in the Silene aegyptiaca (Caryophyllaceae) complex

2017

Self Cite

View full text Add to dashboard Cite

Recombination events among distinct alleles complicate phylogenetic estimation. Various in vivo and in vitro processes can bring distinct alleles into the same genome to then undergo recombination, which may subsequently mislead phylogenetic inference if not assessed properly. Among the processes bringing divergent alleles together, hybridisation is perhaps the simplest and most likely, but alternatives need to be considered before hybridisation can be accepted as the underlying cause. Such alternatives include the presence of paralogues or deeply coalescing alleles, as well as amplification artefacts. Here, we document a recombination event that apparently took place between two divergent lineages of the Silene aegyptiaca complex in the flowering plant family Caryophyllaceae. We evaluate several possible mechanisms that might be responsible for the observed pattern. An ancient introgressive hybridisation event was the simplest explanation for the observations, compatible with geographic proximity of the affected lineages, whereas paralogy and deep coalescence are difficult to reconcile with the evidence obtained from a species tree of the group based on six different, nonrecombinant genes and gene trees inferred using two partitions of the recombinant locus.

show abstract

Section: Bernard E Pfeil and Zeynep Toprak Are Equal Contributorsmentioning

confidence: 99%

Recombination provides evidence for ancient hybridisation in the Silene aegyptiaca (Caryophyllaceae) complex

2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…sect. Atocion Otth, which is restricted to the Eastern Mediterranean, represents an enigmatic group including species with high sequence substitution rates and unclear relationships at both subgeneric and generic levels (Erixon & Oxelman, ; Toprak & al., ); (7) most of the traditionally proposed infrageneric taxa are not supported as monophyletic (Eggens, ; Popp & Oxelman, ; Rautenberg & al., , ; Petri & Oxelman, ; Aydin & al., ).…”

Section: Introductionmentioning

confidence: 97%

“…Silene), but rejected a subsectional division. Several additional sections have been described subsequent to work (e.g., Oxelman, 1995;Lazkov, 1999;Aydin & al., 2014b). Lazkov (2003) classified the Eurasian taxa into 43 sections and 86 series, although most of the series names were neither effectively (ICN Art.…”

Section: ■ Introductionmentioning

confidence: 99%

A new taxonomic backbone for the infrageneric classification of the species‐rich genus Silene (Caryophyllaceae)

Jafari

Zarré

Gholipour

et al. 2020

TAXON

Self Cite

View full text Add to dashboard Cite

The systematization of species in plant taxonomy based on the phylogenetic relationships among them are of utmost importance and also very challenging in large genera. In those, phylogenetic results often may suggest substantially different relationships than previous classifications, and call for large-scale taxonomic revisions. Delimitation of the genus Silene has been and is still somewhat controversial, and recent molecular phylogenetic studies have settled several monophyletic groups that differ substantially from previous taxonomies. The infrageneric taxonomy of Silene s.str. has not been updated as a whole taking the phylogenetic information into account. In this study, we review previous phylogenetic results based on multiple loci, and conducted comprehensive gene tree analyses based on the nrDNA ITS and cpDNA rps16 regions for 1586 and 944 samples representing 415 and 397 species, respectively, including Silene and its allies, as well as a species tree analysis including 262 samples representing 243 species. We sampled representatives from all 44 sections recognized in the most recent global revision of the genus. The results support the recognition of three subgenera, i.e., S. subg. Behenantha, S. subg. Lychnis and S. subg. Silene, which is partly in agreement with previous molecular phylogenetic findings and contradicts all previous traditional classifications. Silene sect. Atocion, with a few annual species showing a narrow distribution range in the eastern Mediterranean, is treated as incertae sedis because of its uncertain phylogenetic position, possibly due to exceptionally high substitution rates. Silene subg. Lychnis, weakly supported as sister to the other subgenera, splits into three main clades and includes four sections. Silene subg. Behenantha, which forms a possible sister group in relation to S. subg. Silene, is poorly resolved basally and includes a large number of mostly small clades recognized as 18 sections. In S. subg. Silene, 11 sections are recognized, among which four are broadly circumscribed: S. sect. Auriculatae, S. sect. Sclerocalycinae, S. sect. Silene and S. sect. Siphonomorpha. Silene sect. Acutifoliae and S. sect. Portenses are described here as new taxa, whereas new status or new combinations are proposed for S. sect. Anotites, S. sect. Muscipula, S. sect. Petrocoma, S. sect. Pulvinatae, S. sect. Sclerophyllae and S. sect. Uebelinia. Five new combinations and two new names are proposed for taxa in Silene formerly assigned to Lychnis and Uebelinia. The correct infrageneric nomenclature compatible with the new infrageneric system is provided along with synonymy and type citations. Shortcomings of this study, such as the lack of a morphological diagnostic key and sparse sampling of some large sections, are listed and discussed.

show abstract

“…Chowdhuri (1957) delimited 44 sections and his taxonomy has been applied by authors of local floras in the Mediterranean region and SW Asia, including Palestine ( Zohary 1966 ), Turkey ( Coode and Cullen 1967 ), the Iranian Highlands ( Melzheimer 1988 ), the Flora Europaea ( Chater et al 1993 ), and Iraq ( Townsend et al 2016 ). There have been several regionally focused studies (e.g., Greuter 1995 , Oxelman and Greuter 1997 ) that amended the taxonomy of Chowdhuri (1957) , and a number of molecular studies (e.g., Oxelman and Lidén 1995 , Desfeux and Lejeune 1996 , Oxelman et al 1997 , Popp and Oxelman 2004 , Eggens 2006 , Eggens et al 2007 , Popp and Oxelman 2007 , Petri and Oxelman 2011 , Rautenberg et al 2012 , Aydin et al 2014a , Naciri et al 2017 ) that revealed the artificial nature of many sections as defined by Chowdhuri (1957) . Jafari et al (2020) outlined a new, revised system taking the phylogenetic information into account.…”

Section: Introductionmentioning

confidence: 99%

Phylogeny and species delimitation in Silene sect. Arenosae (Caryophyllaceae): a new section

Eggens¹,

Jafari²,

Thollesson³

et al. 2020

Self Cite

View full text Add to dashboard Cite

A putatively monophyletic group of annual Silene species is revised taxonomically and described as the new section S. sect. Arenosae. The species of this section were previously treated as a part of a widely circumscribed and polyphyletic S. sect. Rigidulae. Silene sect. Arenosae as circumscribed here consists of nine species. Members of the section show a predominantly E Mediterranean to SW Asian distribution pattern from Turkey southward to Egypt and eastward to Iran and Pakistan, although most of the species have a limited distribution range. The species of S. sect. Arenosae are characterized by narrowly lanceolate calyx teeth, which are often highly polymorphic, and lanceolate to oblanceolate (non-spathulate) basal leaves. The provided taxonomic revision is based on morphological characters and supported by phylogenetic analyses of two nuclear loci (nrITS and an intron of the RPB2 gene) and one chloroplast locus (the intron of the rps16 gene). The species descriptions are formalized using a novel implementation of the Prometheus Description Model.

show abstract

A new section of Silene (Caryophyllaceae) including a new species from South Anatolia, Turkey

Cited by 21 publications

References 23 publications

Recombination provides evidence for ancient hybridisation in the Silene aegyptiaca (Caryophyllaceae) complex

Recombination provides evidence for ancient hybridisation in the Silene aegyptiaca (Caryophyllaceae) complex

A new taxonomic backbone for the infrageneric classification of the species‐rich genus Silene (Caryophyllaceae)

Phylogeny and species delimitation in Silene sect. Arenosae (Caryophyllaceae): a new section

Contact Info

Product

Resources

About