scholarly journals Convergent origin of the narrowly lanceolate leaf in the genus Aster—with special reference to an unexpected discovery of a new Aster species from East China

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6288
Author(s):  
Guo-Jin Zhang ◽  
Hai-Hua Hu ◽  
Tian-Gang Gao ◽  
Michael G. Gilbert ◽  
Xiao-Feng Jin
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Comparative Method ◽  
Leaf Shape ◽  
Riparian Habitat ◽  
Leaf Form ◽  
Riparian Habitats ◽  
Positive Results ◽  
Distinguishing Character ◽  
Lanceolate Leaf

Narrowly lanceolate leaves occur frequently in the genus Aster. It was often employed as a distinguishing character in the taxonomy of this genus. The origin of this particular leaf shape, however, has never been investigated using comparative methods. In this study, we reconstructed a comprehensive phylogeny that includes most species of Aster with narrowly lanceolate leaf. We then gathered data on riparian habitats and the presence or absence of narrowly lanceolate leaves, and investigated the evolutionary association between them in a phylogenetic context. Our analysis indicated that the species with narrowly lanceolate leaves are nested in unrelated lineages of the genus Aster, implying that they originated independently several times. Using Pagel’s comparative method of discrete data, we demonstrated a significant correlation between riparian habitats and narrowly lanceolate leaves. We further inferred the sequence of transition of the two characters. This analysis indicated that the sequence of evolution of riparian habitat and narrowly lanceolate leaf form was usually uncertain, but some positive results showed that the occurrence of riparian habitats may not precede the evolution of narrowly lanceolate leaf form. This study provided new insights into the adaptive evolution in a mega-diverse family. In addition, Aster tonglingensis, an unexpected new species with narrowly lanceolate leaves, was discovered and established based on the evidence from morphology, micromorphology and molecular phylogeny.

Contrasting herbivory patterns and leaf fluctuating asymmetry in Heliocarpus pallidus between different habitat types within a Mexican tropical dry forest

2011 ◽  
Vol 27 (4) ◽  
pp. 383-391 ◽  
Author(s):  
Pablo Cuevas-Reyes ◽  
Ken Oyama ◽  
Antonio González-Rodríguez ◽  
G. Wilson Fernandes ◽  
Luis Mendoza-Cuenca
Keyword(s):  
Leaf Area ◽  
Fluctuating Asymmetry ◽  
Leaf Growth ◽  
Leaf Shape ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Riparian Habitat ◽  
Habitat Types ◽  
Important Indicator ◽  
Riparian Habitats

Abstract:Leaf fluctuating asymmetry (FA) is considered an important indicator of environmentally induced stress in plants, but the relationship between herbivory and FA levels is not clear. In this study we compared leaf size and shape, leaf area consumed by herbivorous insects, and FA levels between individuals of Heliocarpus pallidus (Tiliaceae) from two adjacent and contrasting habitat types (deciduous and riparian) in the Chamela–Cuixmala tropical dry-forest biosphere reserve. Ten individuals of H. pallidus were collected in each habitat type. Leaf shape was assessed using geometric morphometric techniques. Results indicated statistically significant differences in leaf shape between individuals from the two habitat types. In individuals from the riparian habitat leaf area (mean = 42.3 ± 1.2 cm2), herbivory levels (mean = 25.5% ± 1.8%) and FA levels (mean = 0.38 ± 0.04 cm) were significantly higher than in individuals from the deciduous habitat (17.2 ± 3.5 cm2; 9.6% ± 1.0% and 0.18 ± 0.04 cm, respectively). Within habitats, significant correlations were found between total leaf area and percentage leaf area removed by insects (R2 = 0.92 in riparian habitats, R2 = 0.9 in deciduous habitats), and between percentage leaf area removed and FA (R2 = 0.70 in riparian habitats, R2 = 0.79 in deciduous habitats). As has been suggested for other plant species, it is possible that the more favourable conditions in the riparian habitat enhance leaf growth, resulting in higher FA. Also, individuals in this habitat might be characterized by lower chemical defence and/or higher nutritional quality, which would explain the higher herbivory levels.

scholarly journals Molecular Phylogeny and Morphological Analysis Support a New Species and New Synonymy in Iranian Astragalus (Leguminosae)

PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0149726 ◽  
Author(s):  
Ali Bagheri ◽  
Ali Asghar Maassoumi ◽  
Mohammad Reza Rahiminejad ◽  
Frank R. Blattner
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Morphological Analysis ◽  
New Synonymy ◽  
A New Species

Molecular phylogeny of Phyllocoptes associated with roses discloses the presence of a new species

2021 ◽  
pp. 105051
Author(s):  
Tobiasz Druciarek ◽  
Mariusz Lewandowski ◽  
Ioannis Tzanetakis
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
A New Species

scholarly journals Molecular phylogeny of Ischnocnema (Anura: Brachycephalidae) with the redefinition of its series and the description of two new species

2018 ◽  
Vol 128 ◽  
pp. 123-146 ◽  
Author(s):  
Pedro P.G. Taucce ◽  
Clarissa Canedo ◽  
Júlia Soares Parreiras ◽  
Leandro O. Drummond ◽  
Paulo Nogueira-Costa ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Two New Species

Salacia fugax, an elusive new South American Salacioideae (Celastraceae)

Phytotaxa ◽  
2017 ◽  
Vol 317 (4) ◽  
pp. 292 ◽  
Author(s):  
JULIO ANTONIO LOMBARDI ◽  
MARCELA SERNA GONZÁLEZ
Keyword(s):  
New Species ◽  
New South ◽  
Leaf Shape ◽  
Fruit Size ◽  
Leaf Size ◽  
South American ◽  
South American Species ◽  
Size And Shape ◽  
Fruit Size And Shape

A new South American species of Salacia (Celastraceae, Salacioideae) found in Colombia and Venezuela, Salacia fugax Lombardi & M.Serna is described here. It is characterized by its indument, small long acuminate leaves with short petioles, branched inflorescences, flowers with an annular-pulvinate disk, and small pyriform fruits. This new species resembles S. mennegana J.Hedin ex Lombardi and S. opacifolia (J.F.Macbr.) A.C.Sm. by its short petioles, leaf shape, slender branched inflorescence, perianth form, and similar disc, but S. fugax differs by its hairs, leaf size and apex, calyx, and fruit size and shape.

scholarly journals Taxonomy and molecular phylogeny of the Neotropical genusAtlantoscia(Oniscidea, Philosciidae): DNA barcoding and description of two new species

2015 ◽  
Vol 174 (4) ◽  
pp. 702-717 ◽  
Author(s):  
Bianca L. Zimmermann ◽  
Ivanklin S. Campos-Filho ◽  
Maríndia Deprá ◽  
Paula B. Araujo
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Dna Barcoding ◽  
Two New Species

Ferulago akpulatii (Apiaceae): A new species from Central Anatolia, Turkey

Phytotaxa ◽  
2021 ◽  
Vol 518 (2) ◽  
pp. 100-108
Author(s):  
BAHAR GÜRDAL ◽  
BÜLENT OLCAY ◽  
HÜSEYİN ONUR TUNCAY ◽  
EMİNE AKALIN
Keyword(s):  
New Species ◽  
Leaf Shape ◽  
Identification Key ◽  
Central Anatolia ◽  
Cauline Leaf ◽  
Anatomical Features ◽  
Diagnostic Characteristics ◽  
Morphological Differences ◽  
A New Species ◽  
Inflorescence Type

Ferulago akpulatii (Apiaceae) is described as a new species endemic to Central Anatolia, Turkey. It is closely related to Ferulago platycarpa and F. pauciradiata, and is easily distinguished by its cauline leaf shape, inflorescence type, and fruit features. The main morphological differences between Ferulago akpulatii and related taxa are discussed, and the diagnostic characteristics, including the anatomical features of fruits, are given in detail. An identification key of Ferulago akpulatii and the morphologically closer species is also provided.

Premna mwadimei (Lamiaceae), a new species from Cha Simba, a remnant of coastal forests of Kenya, East Africa

Phytotaxa ◽  
2021 ◽  
Vol 510 (2) ◽  
Author(s):  
VERONICAH MUTELE NGUMBAU ◽  
PAUL MUTUKU MUSILI ◽  
GUANG-WAN HU
Keyword(s):  
New Species ◽  
East Africa ◽  
Floral Morphology ◽  
Leaf Shape ◽  
Coastal Forests ◽  
A New Species

Premna mwadimei (Lamiaceae), a distinct new species from the coastal forests of Kenya, Cha Simba area in Kilifi County, is described here with photographs. It is closely similar to P. chrysoclada and P. tanganyikensis but mainly differs from both by its habit, nature of the older stems, indumentum, leaf shape and floral morphology.

A review of Cryphocricos Signoret, 1850 (Naucoridae: Cryphocricinae) with descriptions of three new species

Zootaxa ◽  
2021 ◽  
Vol 4958 (1) ◽  
pp. 72-94
Author(s):  
ROBERT W. SITES
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Intraspecific Variation ◽  
New World ◽  
Morphological Features ◽  
Type Specimens ◽  
Three New Species ◽  
Aquatic Bugs ◽  
High Degree

The genus Cryphocricos Signoret, 1850 was recently determined in a molecular phylogeny to be distantly related to other taxa of the subfamily Cryphocricinae to the extent that it is now once again the sole member of the subfamily. This exclusively New World group of aquatic bugs lives in fast and usually turbulent current and respires by means of a plastron. Efforts to identify morphological features to distinguish among the species have largely fallen short, and some species have been established based on features that exhibit a high degree of intraspecific variation overlapping those of other species. Presented here is a review of the 13 described species with discussions of their features and photos of type specimens, and three new species from Venezuela and Colombia are described. Also presented is a diagnostic attribute unique to the enigmatic Cryphocricos barozzii Signoret, 1850. 

A new species of Raphidascaris (Nematoda: Raphidascarididae) infecting the fish Gymnogeophagus balzanii (Cichlidae) from the Pantanal wetlands, Brazil and a taxonomic update of the subgenera of Raphidascaris based on molecular phylogeny and morphology

2018 ◽  
Vol 94 ◽  
Author(s):  
L.S. Malta ◽  
F. Paiva ◽  
C. Elisei ◽  
L.E.R. Tavares ◽  
F.B. Pereira
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Genetic Markers ◽  
28S Rdna ◽  
Mato Grosso ◽  
Phylogenetic Reconstructions ◽  
Parasitological Survey ◽  
Mato Grosso Do Sul ◽  
A New Species

Abstract Raphidascaris (Sprentascaris) andersoni n. sp. (Nematoda: Raphidascarididae) collected in the intestine of the humphead cichlid Gymnogeophagus balzanii (Perugia) from the Pantanal wetlands, State of Mato Grosso do Sul (Brazil) is described and genetically characterized. The new species differs from its congeners mainly by having a conspicuous papilla-like formation slightly anterior to the cloacal aperture. Furthermore, males of R. (S.) lanfrediae and R. (S.) mahnerti have caudal alae, and R. (S.) hypostomi and R. (S.) pimelodi lack lateral alae, whereas in the new species caudal alae are absent and lateral alae present. The remaining congeners, namely, R. (S.) marano and R. (S.) saltaensis differ from Raphidascaris (Sprentascaris) andersoni n. sp. mainly because males have three pairs of postcloacal papillae (vs five pairs). In the phylogenetic reconstructions, using three nuclear genetic markers (18S, ITS1-5.8S-ITS2 and 28S rDNA) and one mitochondrial (cox1 mtDNA), the new species was separated from other representatives of Raphidascarididae, and the absence of monophyly in Hysterothylacium and Raphidascaroides was confirmed. Moreover, the subgenera Sprentascaris and Ichthyascaris appeared to be monophyletic. Therefore, even though Raphidascaris (Raphidascaris) was apparently not monophyletic, the subgenera of Raphidascaris should be re-erected as valid genera. The updated diagnoses of Ichthyascaris, Raphidascaris and Sprentascaris are given. The present study represents the first parasitological survey in G. balzanii.

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