<i>Carex</i>section<i>Racemosae</i>(Cyperaceae) in Europe: morphological diversity, taxonomy and phylogenetic relationships

Więcław, Helena; Kurnicki, Bartosz; Bihun, Magdalena; Białecka, Bożena; Koopman, Jacob

doi:10.1111/boj.12490

Cited by 8 publications

(7 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…SEM gives us the means for studying the morphological characters of seeds and their ultrastructural characteristics which helps or identifying and determining the taxonomic delimitation of various angiosperm groups, as demonstrated for Brasssicaceae (Tantaway et al, 2004), Caryophyllaceae (Ullah et al, 2019a;Ullah et al, 2019b), Poaceae , Cyperaceae (Więcław et al, 2017), Ranunculaceae (Constantinidis, Psaras & Kamari, 2001;Rewicz et al, 2017;Hadidchi, Attar & Ullah, 2020), Rosaceae (Ballian & Mujagić-Pašić, 2013), Cervantes (Akbari & Azizian, 2006), and Orchidaceae (Gamarra et al 2007;Gamarra et al, 2010;Rewicz, Kołodziejek & Jakubska-Busse, 2016). Although seed morphology alone does not provide universally applicable key characters for species identification, it can be as helpful as many other characters used in taxonomy.…”

Section: Discussionmentioning

confidence: 99%

Seed morphology and sculpture of invasive Impatiens capensis Meerb. from different habitats

Rewicz

Myśliwy

Adamowski

et al. 2020

PeerJ

View full text Add to dashboard Cite

Impatiens capensis is an annual plant native to eastern North America that is currently spreading across Europe. In Poland, due to this plant’s rapid spread in the secondary range and high competitiveness in relation to native species, it is considered a locally invasive species. The microstructure of seeds is an important tool for solving various taxonomic problems and also provides data useful for determining the impact of various environmental factors on the phenotypic variability of species. This issue is particularly important in regard to invasive species which occupy a wide range of habitats in the invaded range. There are few reports on seed size and thus far no descriptions of the seed ultrastructure of I. capensis in the analyzed literature. We present new data on the seed morphology of I. capensis growing in different habitats and conditions in the secondary range of the species. The studied populations differed significantly in each of the investigated traits (seed length, width, circumference, area, roundness, and mass). Our findings showed that anthropogenic disturbances in habitats and some soil parameters (presence of carbonates, potassium, loose sand, and moisture) were statistically significant with various seed sizes and morphology in the studied populations of I. capensis. Moreover, our studies showed maximum seed length (5.74 mm) and width (3.21 mm) exceeding those values given in the available literature. For the first time, we also provide a detailed SEM study of the ultrastructure of the seed coat of I. capensis. There are two types of epidermal cells on the seeds: (a) between the ribs (elongated with straight anticlinal walls, slightly concave outer periclinal walls, and micropapillate secondary sculpture on the edges with anticyclic walls), and (b) on the ribs (isodiametric cells with straight anticlinal walls and concave outer periclinal walls). Unlike the variability of size and weight of seeds, the coat ornamentation has turned out to be a steady feature within the studied secondary range of I. capensis.

show abstract

Section: Discussionmentioning

confidence: 99%

Seed morphology and sculpture of invasive Impatiens capensis Meerb. from different habitats

Rewicz

Myśliwy

Adamowski

et al. 2020

PeerJ

View full text Add to dashboard Cite

show abstract

“…Cyperaceae (Więcław et al 2017), Ranunculaceae (Constantinidis et al 2001;Rewicz et al 2017;Martín-Gómez et al 2019a;Hadidchi et al 2020), Rosaceae (Ballian, Mujagić-Pašić 2013), Onagraceae (Akbari, Azizian 2006), and Orchidaceae (Gamarra et al 2007, 2010Rewicz et al 2016). Although seed morphology alone does not provide universally applicable key characters for species identification, it can be as helpful as many other characters used in taxonomy.…”

Section: Discussionmentioning

confidence: 99%

Peer Review #5 of "Seed morphology and sculpture of invasive Impatiens capensis Meerb. from different habitats (v0.3)"

2020

View full text Add to dashboard Cite

Impatiens capensis is an annual plant native to eastern North America that is currently spreading across Europe. In Poland, due to this plant's rapid spread in the secondary range and high competitiveness in relation to native species, it is considered a locally invasive species. The microstructure of seeds is an important tool for solving various taxonomic problems and also provides data useful for determining the impact of various environmental factors on the phenotypic variability of species. This issue is particularly important regarding invasive species which occupy a wide range of habitats in the invaded range. There are few reports on seed size and thus far no descriptions of the seed ultrastructure of I. capensis in the analyzed literature. We present new data on the seed morphology of I. capensis growing in different habitats and conditions in the secondary range of the species. The studied populations differed significantly in each of the investigated traits (seed length, width, circumference, area, roundness, and mass). Our findings showed that anthropogenic disturbances in habitats and some soil parameters (presence of carbonates, potassium, loose sand, and moisture) were statistically significant with various seed sizes and morphology in the studied populations of I. capensis. Moreover, our studies showed maximum seed length (5.74 mm) and width (3.21 mm) exceeding those values given in the available literature. For the first time, we also provide a detailed SEM study of the ultrastructure of the seed coat of I. capensis. There are two types of epidermal cells on the seeds: a) between the ribs (elongated with straight anticlinal walls, slightly concave outer periclinal walls, and micropapillate secondary sculpture on the edges with anticyclic walls), and b) on the ribs (isodiametric cells with straight anticlinal walls and concave outer periclinal walls). Unlike the variability of size and weight of seeds, the coat ornamentation has turned out to be a steady feature within the studied secondary range of I. capensis.

show abstract

“…holostoma Drej. ( Gebauer, Röser & Hoffmann, 2015 ; Massatti, Reznicek & Knowles, 2016 ; Więcław et al, 2017 ; Roalson et al, 2020 ). Carex buxbaumii and C .…”

Section: Introductionunclassified

“…buxbaumii are usually shorter, spikes are shorter and wider, and utricles are longer than those in C . hartmaniorum ( Więcław et al, 2017 ). Moreover, a distinct intraspecific variability in these two species can be observed, particularly within C. buxbaumii with its two varieties, var.…”

Section: Introductionmentioning

confidence: 99%

Morphological variability and genetic diversity in Carex buxbaumii and Carex hartmaniorum (Cyperaceae) populations

Więcław

Szenejko

Kull

et al. 2021

PeerJ

Self Cite

View full text Add to dashboard Cite

Background Carex buxbaumii and C. hartmaniorum are sister species of the clade Papilliferae within the monophyletic section Racemosae. An unambiguous identification of these species is relatively difficult due to the interspecific continuum of some morphological characters as well as the intraspecific variability. The study was aimed at determining the range of variability, both morphological and genetic, within and between these two closely related and similar species. Methods The sedges were collected during botanical expeditions to Armenia, Estonia, the Netherlands, and Poland. The morphological separation of the two species and their populations was tested using the Discriminant Function Analysis (DFA). The genetic variability of the 19 Carex populations was assessed in the presence of eight Inter Simple Sequence Repeat (ISSR) primers. Results Results of the study indicate a considerable genetic affinity between the two sedge species (mean Si = 0.619). However, the populations of C. hartmaniorum are, morphologically and genetically, more homogenous than the populations of C. buxbaumii. Compared to C. hartmaniorum, C. buxbaumii usually has wider leaf blades, a shorter inflorescence, a lower number of spikes which are shorter, but wider, and longer bracts and utricles. The AMOVA showed a larger variation between the populations of C. buxbaumii, representing 25.65% of the total variation in the taxon. Two populations of C. buxbaumii (from Poland and Estonia) are separated from the remaining populations, both genetically and morphologically; their individuals show shorter utricles and glumes, compared to the typical specimens of C. buxbaumii, and correspond with the morphology of putative infraspecific taxa described by Cajander (var. brevisquamosa and var. confusa). Conclusions The taxonomic status of the putative infraspecific taxa within C. buxbaumii requires further studies throughout the distribution range of C. buxbaumii, addressing habitats, morphology and genetics (including a chromosome count or a combination of different genetic methods), particularly as the variability in C. buxbaumii may be associated with the species’ polyploid origin.

show abstract

CarexsectionRacemosae(Cyperaceae) in Europe: morphological diversity, taxonomy and phylogenetic relationships

Cited by 8 publications

References 16 publications

Seed morphology and sculpture of invasive Impatiens capensis Meerb. from different habitats

Seed morphology and sculpture of invasive Impatiens capensis Meerb. from different habitats

Peer Review #5 of "Seed morphology and sculpture of invasive Impatiens capensis Meerb. from different habitats (v0.3)"

Morphological variability and genetic diversity in Carex buxbaumii and Carex hartmaniorum (Cyperaceae) populations

Contact Info

Product

Resources

About