Infrageneric Classification of Salix (Salicaceae) in the New World

Argus, George W.

doi:10.2307/25096638

Cited by 195 publications

(189 citation statements)

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“…The position of this species remains unresolved in their phylogenetic tree. Argus (1997) has previously revealed phenetic similarity of S. floridana and S. tetrasperma Roxb., but he considered that it was rather distant. Following Dorn (1976), he left the sections Floridanae and Humboldtianae in the subgenus Salix.…”

Section: Discussionmentioning

confidence: 99%

“…The subgenus Salix in the Northern Hemisphere is di vi ded into the following sections: Humboldtianae, Flori da nae, Longifoliae, Salix, Salicaster, Subalbae, Triandrae, Urba nia nae, and Wilsonia (Skvortsov 1968, Dorn 1976, Argus 1997. Skvortsov (1968) viewed the section Humboldtianae rather broadly and included the Asian sections Tetraspermae An dersson and Acmophyllae Andersson therein.…”

Section: Discussionmentioning

confidence: 99%

“…A high level of similarity of the nuclear and plastid genomes of most species from the genus Salix may be regarded as an indication of their relatively recent divergence from a common ancestor, high level of interspecific hybridization, and the reticulate pattern of evolution typical of the genus (Argus 1997).…”

Section: Phylogenetic Relationships Inferred From Its Sequencesmentioning

confidence: 99%

“…The recent moleculargenetic studies have revealed a num ber of incongruities with respect to the conventional clas sification of Salix at the infrageneric level, which is based pri marily on morphological features (e.g., Skvortsov 1968, Dorn 1976, Kimura 1988, Argus 1997. There are ve ry few works focused on phylogeny of Salix, among them: Leskinen & AlströmRapoport (1999), Azuma et al (2000), Chen et al (2010), , Abdollahzadeh et al (2011).…”

mentioning

confidence: 99%

“…Today, there are two extensive regional monographic treat ments based on contemporary approaches to in fra generic classification of Salix: by willows from Japan (Oha shi 2001) and North America (Argus 1997(Argus , 2010. Oha Phylogenetic analysis of the Far Eastern Salix.…”

mentioning

confidence: 99%

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Phylogenetic Analysis of the Far Eastern Salix (Salicaceae) Based on Sequence Data from Chloroplast DNA Regions and ITS of Nuclear Ribosomal DNA

Barkalov¹,

Козыренко²

2014

Bot Pac

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In order to further elucidate the relationships in the Salix genus, phylogenetic ana lysis was conducted based on comparison of the nucleotide sequences of the chlo roplast DNA regions rpoBtrnC, rbcL, matK) and the ITS region (ITS1-5.8S rRNA-ITS2) of nuclear ribosomal DNA of 86 Salix species from three sub genera: Salix, Chamaetia, Vetrix, 27 sections and Chosenia arbutifolia. The previous ly recognized genera Chosenia and Toisusu merged with Salix. The divergence of spe cies in the Salix genus (according to ITS and cpDNA data) was very low. In most spe cies from Chamaetia and Vetrix subgenera, the sequences differed by several sub stitutionsorwereidentical.Moleculardifferenceswereidentifiedmainlyin spe cies belonging to the subgenus Salix in its previous broad meaning. ITSphy lo genygenerallyagreeswiththemost-recentinfragenericclassificationof Salix: the isolation of subgenera Pleuradenia, Chosenia, Salix (for exception sect. Triand rae), Longifoliae has been well supported, but the isolation of subgenera Protitea and Chamaetia is not supported. Relationships between the subgenera Chamaetia and Vetrix remain unresolved. High similarity of the plastid and nuclear genomes re vealed in the majority of Salix species included in the analysis may indicate that they have relatively recently diverged from a common ancestor or there is a result of lineage sorting through hybridization. (petG-trnP, petN-psbM, psaA-ycf3, psbM-trnD, rpoB-trnC, trnC-petN, trnD-trnT, trnS-psbZ, rbcL, matK)

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Phylogenetic Relationships Inferred From Its Sequencesmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Phylogenetic Analysis of the Far Eastern Salix (Salicaceae) Based on Sequence Data from Chloroplast DNA Regions and ITS of Nuclear Ribosomal DNA

Barkalov¹,

Козыренко²

2014

Bot Pac

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Salix: Botany and Global Horticulture

Kuzovkina

Weih

Romero³

et al. 2007

Horticultural Reviews

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Challenge accepted: Evolutionary lineages versus taxonomic classification of North American shrub willows (Salix)

Marinček,

Léveillé‐Bourret,

Heiduk

et al. 2024

American J of Botany

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PremiseThe huge diversity of Salix subgenus Chamaetia/Vetrix clade in North America and the lack of phylogenetic resolution within this clade has presented a difficult but fascinating challenge for taxonomists to resolve. Here we tested the existing taxonomic classification with molecular tools.MethodsIn this study, 132 samples representing 46 species from 22 described sections of shrub willows from the United States and Canada were analyzed and combined with 67 samples from Eurasia. The ploidy levels of the samples were determined using flow cytometry and nQuire. Sequences were produced using a RAD sequencing approach and subsequently analyzed with ipyrad, then used for phylogenetic reconstructions (RAxML, SplitsTree), dating analyses (BEAST, SNAPPER), and character evolution analyses of 14 selected morphological traits (Mesquite).ResultsThe RAD sequencing approach allowed the production of a well‐resolved phylogeny of shrub willows. The resulting tree showed an exclusively North American (NA) clade in sister position to a Eurasian clade, which included some North American endemics. The NA clade began to diversify in the Miocene. Polyploid species appeared in each observed clade. Character evolution analyses revealed that adaptive traits such as habit and adaxial nectaries evolved multiple times independently.ConclusionsThe diversity in shrub willows was shaped by an evolutionary radiation in North America. Most species were monophyletic, but the existing sectional classification could not be supported by molecular data. Nevertheless, monophyletic lineages share several morphological characters, which might be useful in the revision of the taxonomic classification of shrub willows.

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Infrageneric Classification of Salix (Salicaceae) in the New World

Cited by 195 publications

References 0 publications

Phylogenetic Analysis of the Far Eastern Salix (Salicaceae) Based on Sequence Data from Chloroplast DNA Regions and ITS of Nuclear Ribosomal DNA

Phylogenetic Analysis of the Far Eastern Salix (Salicaceae) Based on Sequence Data from Chloroplast DNA Regions and ITS of Nuclear Ribosomal DNA

Salix: Botany and Global Horticulture

Challenge accepted: Evolutionary lineages versus taxonomic classification of North American shrub willows (Salix)

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