Evolution of apetaly in the cosmopolitan genus <i>Stellaria</i>

Sharples, Mathew T.; Bentz, Philip C; Tripp, Erin A.

doi:10.1002/ajb2.1650

Cited by 6 publications

(11 citation statements)

References 78 publications

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“…The formerly recognized monotypic genus Myosoton, characterized by 5 styles and a capsule dividing into 5 bluntly bidentate teeth, is also nested within this clade, corroborating its synonymy under Stellaria (Harbaugh & al., 2010;Greenberg & Donoghue, 2011;Li & al., 2016;Wang & al., 2017;Sharples, 2019;Sharples & Tripp, 2019a). In a further study, based on phylogenetic analyses and field investigations, Sharples & al. (2021) suggested that petal loss in Stellaria is repeated several times across the clades and is associated mostly with self-pollination.…”

Section: ■ Discussionmentioning

confidence: 95%

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Intergeneric relationships within the tribe Alsineae (Caryophyllaceae) as inferred from nrDNA ITS and cpDNArps16 sequences: A step toward a phylogenetically based generic system

Arabi

Ghahremaninejad

Rabeler

et al. 2022

TAXON

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The tribe Alsineae is a large monophyletic group in the family Caryophyllaceae especially found across Eurasia and the Americas, but with a center of diversity in the Mediterranean region. Several previous molecular phylogenetic studies have focused on the delimitation of genera and tribes of Caryophyllaceae, especially the subfamily Alsinoideae or the tribe Alsineae in a broader sense than now recognized. However, there are still many open questions regarding the subdivision of the tribe and genus delimitation. In the present study, we sampled 191 (148 species) and 149 (125 species) accessions of Alsineae representing almost all (Adenonema and Pseudocerastium were not available to us) recognized genera in the tribe for nuclear DNA internal transcribed spacer (ITS) and plastid marker rps16 sequences, respectively. A combined matrix of 103 species was built for taxa with both sequences available. Maximum parsimony and Bayesian inference analyses retrieved Cerastium and Stellaria (including Myosoton) as the largest monophyletic genera, while other genera were medium‐sized (10–20 spp.) or small (<10 spp.). Our expanded sampling of Pseudostellaria and its relatives suggests a broader circumscription of this genus. Major divergence in morphology, particularly of the seeds, observed in the “Protostellaria”‐clade, allows recognition of some taxonomic changes. A total of 16 genera are recognized in Alsineae including Cerastium, Dichodon, Hartmaniella, Holosteum, Lepyrodiclis, Mesostemma, Moenchia, Nubelaria, Odontostemma, Pseudostellaria, Rabelera, Schizotechium, Shivparvatia, and Stellaria, along with Adenonema and Pseudocerastium that could not be analyzed and are, therefore, kept as distinct genera. A diagnostic key to these genera, as well as notes on their relationships, distribution, and nomenclature, is provided.

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Section: ■ Discussionmentioning

confidence: 95%

“…In a further study, based on phylogenetic analyses and field investigations, Sharples & al. (2021) suggested that petal loss in Stellaria is repeated several times across the clades and is associated mostly with self‐pollination.…”

Section: Discussionmentioning

confidence: 99%

Intergeneric relationships within the tribe Alsineae (Caryophyllaceae) as inferred from nrDNA ITS and cpDNArps16 sequences: A step toward a phylogenetically based generic system

Arabi

Ghahremaninejad

Rabeler

et al. 2022

TAXON

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“…This work brings the Stellaria media plant to the fore [6]. This is popularly called chickweed and is part of the Caryophyllaceae family along with other plants such as Stellaria alsine, Stellaria pallida, Stellaria dichotoma, Stellaria nemorum, Stellaria holostea [7,8]. Until now, this Stellaria species is considered to be beneficial in the form of ethanolic, methanolic, and aqueous extracts or even consumed in the daily diet in various conditions such as lung diseases (asthma, bronchitis, bronchiolitis, lung cancer), cancer, skin diseases (burns, cuts, scratches having a healing effect) [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Characterization in Terms of Phytochemical Content and Medicinal Potential of the Stellaria media Plant Extract

Miere¹,

Ganea²,

Teodorescu³

et al. 2023

Pharmacophore

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“…In several eudicot families, the recurrent loss of petals considerably increases the variation of flower ground plan ( Endress, 2006 ; Pieper et al, 2016 ). Apart from wind-pollinated lineages, apetaly is especially common among selfing plants since they do not require pollinators ( Culley and Klooster, 2007 ; Sharples et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

lepidium-like, a Naturally Occurring Mutant of Capsella bursa-pastoris, and Its Implications on the Evolution of Petal Loss in Cruciferae

et al. 2021

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Naturally occurring mutants whose phenotype recapitulates the changes that distinguish closely related species are of special interest from the evolutionary point of view. They can give a key about the genetic control of the changes that led to speciation. In this study, we described lepidium-like (lel), a naturally occurring variety of an allotetraploid species Capsella bursa-pastoris that is characterized by the typical loss of all four petals. In some cases, one or two basal flowers in the raceme had one or two small petals. The number and structure of other floral organs are not affected. Our study of flower development in the mutant showed that once initiated, petals either cease further development and cannot be traced in anthetic flowers or sometimes develop to various degrees. lel plants showed an earlier beginning of floral organ initiation and delayed petal initiation compared to the wild-type plants. lel phenotype has a wide geographical distribution, being found at the northern extremity of the species range as well as in the central part. The genetic analysis of inheritance demonstrated that lel phenotype is controlled by two independent loci. While the flower in the family Cruciferae generally has a very stable structure (i.e., four sepals, four petals, six stamens, and two carpels), several deviations from this ground plan are known, in particular in the genus Lepidium, C. bursa-pastoris is an emerging model for the study of polyploidy (which is also very widespread in Cruciferae); the identification and characterization of the apetalous mutant lays a foundation for further research of morphological evolution in polyploids.

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Evolution of apetaly in the cosmopolitan genus Stellaria

Abstract: Across angiosperms, evolutionary loss of petals has been rampant and characterizes many distantly related lineages (e.g., in the

Cited by 6 publications

References 78 publications

Intergeneric relationships within the tribe Alsineae (Caryophyllaceae) as inferred from nrDNA ITS and cpDNArps16 sequences: A step toward a phylogenetically based generic system

Intergeneric relationships within the tribe Alsineae (Caryophyllaceae) as inferred from nrDNA ITS and cpDNArps16 sequences: A step toward a phylogenetically based generic system

Characterization in Terms of Phytochemical Content and Medicinal Potential of the Stellaria media Plant Extract

lepidium-like, a Naturally Occurring Mutant of Capsella bursa-pastoris, and Its Implications on the Evolution of Petal Loss in Cruciferae

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