Phylogeny of the Carolinense Clade of &lt;I&gt;Solanum&lt;/I&gt; (Solanaceae) Inferred from Nuclear and Plastid DNA Sequences

Wahlert, Gregory A.; Chiarini, Franco Ezequiel; Bohs, Lynn

doi:10.1600/036364414x682599

Cited by 9 publications

(30 citation statements)

References 16 publications

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“…All of the members of this small species group were only recognised as being related as the result of molecular phylogenetics (Levin et al 2006; Stern et al 2011; Wahlert et al 2014). Whalen (1984) suggested that S. elaeagnifolium was related to Australian species and placed it in his S. ellipticum group, and placed S. houstonii (as S. tridynamum ) in his S. vespertilio group, based on its zygomorphic flowers; he included S. hindsianum in his unplaced species.…”

Section: Taxonomy and Relationshipsmentioning

confidence: 99%

“…He placed S. mortonii in “Series 2” along with other species such as S. comptum C.V.Morton and S. pumilum Dunal, most of which are now currently recognised as members of the Carolinense clade (section Lathyrocarpum; Wahlert et al 2015), but others are species of uncertain affinity (e.g., S. euacanthum Phil. is weakly sister to the Elaeagnifolium clade, see Wahlert et al 2014; S. multispinum N.E.Br. is a species of uncertain affinities; see Stern et al 2011, Wahlert et al 2014).…”

Section: Taxonomy and Relationshipsmentioning

confidence: 99%

“…is weakly sister to the Elaeagnifolium clade, see Wahlert et al 2014; S. multispinum N.E.Br. is a species of uncertain affinities; see Stern et al 2011, Wahlert et al 2014). In combined analyses using plastid and nuclear markers S. elaeagnifolium accessions from North and South America group together as sister taxa (Stern et al 2011; Wahlert et al 2014).…”

Section: Taxonomy and Relationshipsmentioning

confidence: 99%

“…is a species of uncertain affinities; see Stern et al 2011, Wahlert et al 2014). In combined analyses using plastid and nuclear markers S. elaeagnifolium accessions from North and South America group together as sister taxa (Stern et al 2011; Wahlert et al 2014). Stern et al (2011) recovered S. mortonii as sister to S. elaeagnifolium (both North and South American accessions).…”

Section: Taxonomy and Relationshipsmentioning

confidence: 99%

“…A project funded by the United States National Science Foundation’s Planetary Biodiversity Inventory (PBI) program begun in 2004 sought to accelerate species-level taxonomic work across the genus and resulted in a series of monographic and phylogenetic treatments from both Old and New Worlds (e.g., Tepe and Bohs 2011; Stern et al 2013; Knapp 2013a; Knapp and Vorontsova 2016; Clark et al 2015; Wahlert et al 2014, 2015; Aubriot et al 2016; Vorontsova and Knapp 2016; Spooner et al 2016). An electronic monographic treatment of the entire genus, with species and species groups added as they are completed, is available online in the web resource Solanaceae Source (http://www.solanaceaesource.org).…”

Section: Introductionmentioning

confidence: 99%

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A revision of the Solanum elaeagnifolium clade (Elaeagnifolium clade; subgenus Leptostemonum, Solanaceae)

Knapp¹,

Sagona²,

Carbonell³

et al. 2017

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The Solanum elaeagnifolium clade (Elaeagnifolium clade) contains five species of small, often rhizomatous, shrubs from deserts and dry forests in North and South America. Members of the clade were previously classified in sections Leprophora, Nycterium and Lathyrocarpum, and were not thought to be closely related. The group is sister to the species-rich monophyletic Old World clade of spiny solanums. The species of the group have an amphitropical distribution, with three species in Mexico and the southwestern United States and three species in Argentina. Solanum elaeagnifolium occurs in both North and South America, and is a noxious invasive weed in dry areas worldwide. Members of the group are highly variable morphologically, and this variability has led to much synonymy, particularly in the widespread S. elaeagnifolium. We here review the taxonomic history, morphology, relationships and ecology of these species and provide keys for their identification, descriptions, full synonymy (including designations of lectotypes) and nomenclatural notes. Illustrations, distribution maps and preliminary conservation assessments are provided for all species.

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Section: Taxonomy and Relationshipsmentioning

confidence: 99%

Section: Taxonomy and Relationshipsmentioning

confidence: 99%

Section: Taxonomy and Relationshipsmentioning

confidence: 99%

Section: Taxonomy and Relationshipsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A revision of the Solanum elaeagnifolium clade (Elaeagnifolium clade; subgenus Leptostemonum, Solanaceae)

Knapp¹,

Sagona²,

Carbonell³

et al. 2017

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Cryptic genetic diversity in Solanum elaeagnifolium (Solanaceae) from South America

et al. 2018

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Solanum elaeagnifolium is a global invasive weed that is polyploid in the South American range. Our aim was to establish the origin and distribution of these polyploid lineages, together with their relationship with the invasion of new habitats. Ploidy level was determined in 26 natural populations using chromosomal counts, and two non-coding plastid regions trnL-trnF and rpl32F-trnL were sequenced. Relationships among haplotypes were examined by a median-joining network, and groups of populations were identified by employing a spatial analysis of molecular variance. Phylogenetic relationships among haplotypes were reconstructed using Bayesian inference, and divergence times were estimated using BEAST. We found 21 haplotypes structured into three lineages: one with diploids in North America and invaded areas, and two in South America that developed independent polyploidisation events. The separation of lineages took place during the Pliocene with more recent divergences in the Early Pleistocene. The existence of three lineages can be attributed to the uplift of the Andes and the emergence of the Isthmus of Panama. Diversification within each lineage may be related to the recent cyclical glacial variation throughout the Pleistocene creating haplotype diversity and recurrent polyploidy. Thus, the South American populations of S. elaeagnifolium did not originate from a recent colonisation but are established ancient lineages.

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Intraspecific variation in responses to extreme and moderate temperature stress in the wild species, Solanum carolinense (Solanaceae)

Chandler,

Travers

2024

AoB PLANTS

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Adaptation or acclimation to local temperature regimes has often been used as a proxy for predicting how plant populations will respond to impending novel conditions driven by human-caused climate change. To understand how plants may successfully respond to increasing air temperatures (extreme and moderate) in the future, we explored how temperature tolerance traits differ in populations of Solanum carolinense from northern (MN) and southern (TX) regions of the continental United States in a two-experiment study. In the first experiment, we compared the heat and cold tolerance in vegetative (sporophyte) and reproductive (male gametophyte) traits. In the second experiment, we studied if long-term heat influences plant development by examining how development in moderate heat affected reproductive structures and reproductive success. We found that temperature-sensitivity differed between southern populations, which regularly experience extreme heat, and northern populations that do not. In contrast to our expectations, northern populations appeared more heat-tolerant than southern populations for vegetative traits such as chlorophyll stability and reproductive traits such as pollen germination. Our results are consistent with a heat-avoidance, rather than tolerance mechanism to mitigate extreme heat during pollen germination. In the second experiment, plants developing under the moderate heat treatment had significantly smaller reproductive structures and reduced seed production (27% fewer seeds on average than in the control treatment). Reproductive structures that developed in moderate heat were also reduced in size, particularly in the northern populations relative to populations from the south. We conclude that rising temperatures have the potential to incur substantial negative consequences for the reproductive success of individuals in this species and that some populations already mitigate stressful temperature conditions through phenotypic plasticity.

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Phylogeny of the Carolinense Clade of <I>Solanum</I> (Solanaceae) Inferred from Nuclear and Plastid DNA Sequences

Cited by 9 publications

References 16 publications

A revision of the Solanum elaeagnifolium clade (Elaeagnifolium clade; subgenus Leptostemonum, Solanaceae)

A revision of the Solanum elaeagnifolium clade (Elaeagnifolium clade; subgenus Leptostemonum, Solanaceae)

Cryptic genetic diversity in Solanum elaeagnifolium (Solanaceae) from South America

Intraspecific variation in responses to extreme and moderate temperature stress in the wild species, Solanum carolinense (Solanaceae)

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