The contribution of Anatolia to European phylogeography: the centre of origin of the meadow grasshopper, Chorthippus parallelus

2014 ◽  
Vol 41 (9) ◽  
pp. 1793-1805 ◽  
Author(s):  
E. Mahir Korkmaz ◽  
David H. Lunt ◽  
Battal Çıplak ◽  
Naci Değerli ◽  
Hasan H. Başıbüyük
Keyword(s):  
Chorthippus Parallelus ◽  
Centre Of Origin

scholarly journals Effects of habitat structure and land-use intensity on the genetic structure of the grasshopper species Chorthippus parallelus

2014 ◽  
Vol 1 (2) ◽  
pp. 140133 ◽  
Author(s):  
Kerstin R. Wiesner ◽  
Jan Christian Habel ◽  
Martin M. Gossner ◽  
Hugh D. Loxdale ◽  
Günter Köhler ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Land Use ◽  
Genetic Structure ◽  
Sampling Site ◽  
Land Use Intensity ◽  
Habitat Size ◽  
Grasshopper Species ◽  
Chorthippus Parallelus ◽  
Landscape Characteristics ◽  
Local Populations

Land-use intensity (LUI) is assumed to impact the genetic structure of organisms. While effects of landscape structure on the genetics of local populations have frequently been analysed, potential effects of variation in LUI on the genetic diversity of local populations have mostly been neglected. In this study, we used six polymorphic microsatellites to analyse the genetic effects of variation in land use in the highly abundant grasshopper Chorthippus parallelus . We sampled a total of 610 individuals at 22 heterogeneous grassland sites in the Hainich-Dün region of Central Germany. For each of these grassland sites we assessed habitat size, LUI (combined index of mowing, grazing and fertilization), and the proportion of grassland adjoining the sampling site and the landscape heterogeneity (the latter two factors within a 500 m buffer zone surrounding each focal site). We found only marginal genetic differentiation among all local populations and no correlation between geographical and genetic distance. Habitat size, LUI and landscape characteristics had only weak effects on most of the parameters of genetic diversity of C. parallelus ; only expected heterozygosity and the grasshopper abundances were affected by interacting effects of LUI, habitat size and landscape characteristics. The lack of any strong relationships between LUI, abundance and the genetic structure might be due to large local populations of the species in the landscape, counteracting local differentiation and potential genetic drift effects.

scholarly journals The genus Microniphargus (Crustacea, Amphipoda): evidence for three lineages distributed across northwestern Europe and transfer from Niphargidae to Pseudoniphargidae

2021 ◽  
Vol 151 ◽  
Author(s):  
Dieter Weber ◽  
Fabio Stoch ◽  
Lee R.F.D. Knight ◽  
Claire Chauveau ◽  
Jean-François Flot
Keyword(s):  
Cytochrome C ◽  
Cytochrome C Oxidase ◽  
Phylogenetic Analyses ◽  
Ribosomal Gene ◽  
Phylogenetic Position ◽  
Mitochondrial Cytochrome ◽  
Monotypic Genus ◽  
Centre Of Origin ◽  
Phylogenetic Studies ◽  
The Family

Microniphargus leruthi Schellenberg, 1934 (Amphipoda: Niphargidae) was first described based on samples collected in Belgium and placed in a monotypic genus within the family Niphargidae. However, some details of its morphology as well as recent phylogenetic studies suggest that Microniphargus may be more closely related to Pseudoniphargus (Amphipoda: Pseudoniphargidae) than to Niphargus. Moreover, M. leruthi ranges over 1,469 km from Ireland to Germany, which is striking since only a few niphargids have confirmed ranges in excess of 200 km. To find out the phylogenetic position of M. leruthi and check whether it may be a complex of cryptic species, we collected material from Ireland, England and Belgium then sequenced fragments of the mitochondrial cytochrome c oxidase subunit 1 gene as well as of the nuclear 28S ribosomal gene. Phylogenetic analyses of both markers confirm that Microniphargus is closer to Pseudoniphargus than to Niphargus, leading us to reallocate Microniphargus to Pseudoniphargidae. We also identify three congruent mito-nuclear lineages present respectively in Ireland, in both Belgium and England, and in England only (with the latter found in sympatry at one location), suggesting that M. leruthi is a complex of at least three species with a putative centre of origin in England.

The Tupi: explaining origin and expansions in terms of archaeology and of historical linguistics

Antiquity ◽  
1998 ◽  
Vol 72 (277) ◽  
pp. 648-663 ◽  
Author(s):  
Francisco Silva Noelli
Keyword(s):  
Historical Linguistics ◽  
Archaeological Site ◽  
Site Location ◽  
Territorial Expansion ◽  
Linguistic Data ◽  
Centre Of Origin ◽  
Cultural Processes ◽  
Cultural Features

Interest in explaining scientifically the enormous territorial expansion of the Tupi has been an issue since 1838, now with a consensus: a common centre of origin existed, from which the Tupi fanned out, differentiating through distinct historic and cultural processes whilst keeping several common cultural features. But there is no consensus as to where the centre was located and where passed the routes of expansion.Scholars have often asserted this hypothesis, but contributed very little scientific proof. Since 1960, archaeological (site location, radiocarbon and thermoluminescent dating) and linguistic data (glottochronology, relationships among languages) have been brought to the scene.

Geographic and Temporal Variation of Distinct Intracellular Endosymbiont Strains of Wolbachia sp. in the Grasshopper Chorthippus parallelus: a Frequency-Dependent Mechanism?

2019 ◽  
Vol 77 (4) ◽  
pp. 1036-1047
Author(s):  
Paloma Martínez-Rodríguez ◽  
Emilio Rolán-Alvarez ◽  
M. del Mar Pérez-Ruiz ◽  
Francisca Arroyo-Yebras ◽  
Carla Carpena-Catoira ◽  
...  
Keyword(s):  
Temporal Variation ◽  
Frequency Dependent ◽  
Chorthippus Parallelus ◽  
Dependent Mechanism

scholarly journals Anatomical Studies on Several Species of Heliotropium L. in Iran

2011 ◽  
Vol 3 (4) ◽  
pp. 35-43 ◽  
Author(s):  
Maryam ABBASI ◽  
Farideh ATTAR ◽  
Farrokh GHAHREMANI NEJAD
Keyword(s):  
Endemic Species ◽  
Arid Regions ◽  
Vascular Bundles ◽  
Anatomical Studies ◽  
Blade Number ◽  
Centre Of Origin ◽  
Adaptive Value ◽  
Anatomical Characters ◽  
Warm Temperate ◽  
Independent Species

Heliotropium spp. is distributed worldwide mainly in tropical and subtropical regions, with dry and warm temperate to semi-arid regions so that Southwest and center of Asia have considered as the main centre of origin and diversity of Heliotropium genus. Iran, with 32 species and 14 (sub) endemic species, has the highest diversity in the world followed by Pakistan and Turkey with 15 species and only one endemic species and the Arabian Peninsula with 15 species and three endemic species are in the next ranks. In order to anatomical studies on Heliotropium, twelve species of this genus were selected from different regions of Iran. The selected species included: H. bacciferum Forssk., H. ramossisimum BGE., H. brevilimb Boiss., H. transoxanum BGE., H. dasycarpum Ledeb, H. dyginum Forssk., H. aucheri Dc., H. carmanicum BGE. As perennial group and H. ellipticum Ledeb., H. lasiocarpum Fisch., H. suaveolens M.B. as annual group. In order to add more data to leaf anatomy characters, evaluating of systematic relevance and/or adaptive value of the morphological and anatomical diversity we have studied 24 anatomical characters in theses 12 species. For example shape and vascular bundles of main midrib, type of parenchyma cells located under lower epidermis of midrib, distance between vascular bundles and lower or upper epidermis, angle of between two parts of blade, number of cellular layers in lower or upper mesophylla, length of upper and lower mesophylla, type of cell wall in lower and upper mesophylla and thickness of lamina were investigated in this study. In order to this present obtained H. aucheri can be separated from H. carmanicum in H. aucheri subsp. carmanicum. It can be conclude that two species H. aucheri and H. carmanicum are independent species and can accept H. transoxanum as a sub group of H. dasycarpum.

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