New insight into the genetic structure of the Allolobophora chlorotica aggregate in Europe using microsatellite and mitochondrial data

Pedobiologia ◽  
2011 ◽  
Vol 54 (4) ◽  
pp. 217-224 ◽  
Author(s):  
L. Dupont ◽  
F. Lazrek ◽  
D. Porco ◽  
R.A. King ◽  
R. Rougerie ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Mitochondrial Data ◽  
Insight Into ◽  
Allolobophora Chlorotica

scholarly journals Genetic structure, species limits and evolution of the parasitoid wasp genus Stenocorse (Braconidae: Doryctinae) based on nuclear 3RAD and mitochondrial data

2019 ◽  
Vol 45 (1) ◽  
pp. 33-47 ◽  
Author(s):  
Natalia Delgado‐Machuca ◽  
Rubi N. Meza‐Lázaro ◽  
Jesús Romero‐Nápoles ◽  
Carlos E. Sarmiento‐Monroy ◽  
Ángela R. Amarillo‐Suárez ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Parasitoid Wasp ◽  
Species Limits ◽  
Mitochondrial Data

scholarly journals Population genomics and demographic sampling of the ant-plant Vachellia drepanolobium and its symbiotic ants from sites across its range in East Africa

2018 ◽  
Author(s):  
John H. Boyle ◽  
Dino Martins ◽  
Paul M. Musili ◽  
Naomi E. Pierce
Keyword(s):  
Spatial Distribution ◽  
Genetic Structure ◽  
Host Plants ◽  
Species Coexistence ◽  
Population Genomics ◽  
Abiotic Factors ◽  
Landscape Genomics ◽  
Abiotic Conditions ◽  
Environmental Perturbations ◽  
Insight Into

AbstractThe association between the African ant plant, Vachellia drepanolobium, and the ants that inhabit it has provided insight into the boundaries between mutualism and parasitism, the response of symbioses to environmental perturbations, and the ecology of species coexistence. We use a landscape genomics approach at sites sampled throughout the range of this system in Kenya to investigate the demographics and genetic structure of the different partners in the association. We find that different species of ant associates of V. drepanolobium show striking differences in their spatial distribution throughout Kenya, and these differences are only partly correlated with abiotic factors. A comparison of the population structure of the host plant and its three obligately arboreal ant symbionts, Crematogaster mimosae, Crematogaster nigriceps, and Tetraponera penzigi, shows that the ants exhibit somewhat similar patterns of structure throughout each of their respective ranges, but that this does not correlate in any clear way with the respective genetic structure of the populations of their host plants. A lack of evidence for local coadaptation in this system suggests that all partners have evolved to cope with a wide variety of biotic and abiotic conditions.

scholarly journals Insight into the Peopling of Mainland Southeast Asia from Thai Population Genetic Structure

PLoS ONE ◽  
2013 ◽  
Vol 8 (11) ◽  
pp. e79522 ◽  
Author(s):  
Pongsakorn Wangkumhang ◽  
Philip James Shaw ◽  
Kridsadakorn Chaichoompu ◽  
Chumpol Ngamphiw ◽  
Anunchai Assawamakin ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Southeast Asia ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Thai Population ◽  
Insight Into ◽  
Mainland Southeast Asia

scholarly journals Variation and its distribution in wild cacao populations from the Brazilian Amazon

2003 ◽  
Vol 46 (4) ◽  
pp. 507-514 ◽  
Author(s):  
Luiz Antônio dos Santos Dias ◽  
Júlio Pontes Barriga ◽  
Paulo Yoshio Kageyama ◽  
Caio Márcio Vasconcellos Cordeiro de Almeida
Keyword(s):  
Multivariate Analysis ◽  
Genetic Structure ◽  
Significant Variation ◽  
Brazilian Amazon ◽  
River Basins ◽  
Collection Management ◽  
Gene Conservation ◽  
Seed Traits ◽  
Univariate Analyses ◽  
Insight Into

A sample of 64 progenies (320 cacao trees as a whole) from four Brazilian Amazon basins was collected and evaluated on the basis of 15 fruit and seed traits. Nested univariate analyses of variance showed significant variation across progenies and basins. However, most of the variability appeared to be due to among trees and basins differences. The multivariate analysis showed that the differentiation in cacao populations occurred among basins. Since cacao diversity was predominantly found in trees within basins and among basins, one should optimize the collecting process by taking as many trees as possible starting from few progenies and many river basins. These findings seemed to validate gene conservation efforts made to date to preserve the cacao genetic resources and provide insight into the cacao genetic structure aiming cacao collection, management and improvement.

scholarly journals Combined analysis of nuclear and mitochondrial markers provide new insight into the genetic structure of North European Picea abies

Heredity ◽  
2009 ◽  
Vol 102 (6) ◽  
pp. 549-562 ◽  
Author(s):  
M M Tollefsrud ◽  
J H Sønstebø ◽  
C Brochmann ◽  
Ø Johnsen ◽  
T Skrøppa ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Picea Abies ◽  
Combined Analysis ◽  
Mitochondrial Markers ◽  
Insight Into

scholarly journals Genetic structure of apple accessions maintained ex situ in Bosnia and Herzegovina examined by microsatellite markers

Genetika ◽  
2013 ◽  
Vol 45 (2) ◽  
pp. 467-478 ◽  
Author(s):  
Fuad Gasi ◽  
Maja Zulj-Mihaljevic ◽  
Silvio Simon ◽  
Jasmin Grahic ◽  
Naris Pojskic ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Ottoman Empire ◽  
Ex Situ ◽  
Breeding Programs ◽  
Molecular Variance ◽  
International Reference ◽  
Apple Cultivars ◽  
Almost All ◽  
Insight Into ◽  
Simple Sequence

In order to identify possible mislabeling of the apple accession maintained ex situ in Srebrenik and to gain insight into the genetic structure of the conserved germplasm, 14 accessions from the collection were genotyped using 10 SSR (Simple Sequence Repeats) markers. Obtained SSR profiles were then added to an existing database constructed for previously characterized 24 traditional and 13 international, reference apple cultivars maintained at the same collection. Bayesian analysis implemented in the STRUCTURE program grouped 42 out of 51 analyzed apple accessions (38 traditional and 13 international) into three RPPs (reconstructed panmictic populations) with probability of membership qI higher than 75%. Almost all international, reference cultivars grouped in RPP3, whereas traditional B&H cultivars from the Srebrenik collection grouped in all three RPPs. Large and significant differentiations between all three individual RPPs were detected through the analyses of molecular variance and confirmed with FCA (factorial correspondence analyses). NJ cluster analysis, based on the Bruvo genetic distance, revealed that out of 38 traditional B&H apple cultivars, analyzed in the study, ?Ljepocvjetka?, ?Bobovec? and ?Bobovec J? grouped closest to the international reference cultivars. Available date indicates that unlike a large number of B&H apple cultivars which were introduced during the reign of the Ottoman Empire, ?Ljepocvjetka? and ?Bobovec? were probably introduced at a later date. Cluster analyses also enabled the detection of one synonym and three homonyms within the collection. In four cases, previously conducted identification based on phenotypic analyses was confirmed by genetic analyses. Results of the structure analyses indicate a heterogeneous genetic structure of the analyzed accessions. This characteristic of the B&H apple germplasm could be useful for future breeding programs.

scholarly journals Phylogeography of the Cran’s bully Gobiomorphus basalis (Gobiiformes: Eleotridae) and an analysis of species boundaries within the New Zealand radiation of Gobiomorphus

2020 ◽  
Vol 130 (2) ◽  
pp. 365-381
Author(s):  
James J Shelley ◽  
Bruno O David ◽  
Christine E Thacker ◽  
Andy S Hicks ◽  
Matt G Jarvis ◽  
...  
Keyword(s):  
New Zealand ◽  
Taupo Volcanic Zone ◽  
Species Boundaries ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
The North ◽  
Mitochondrial Data ◽  
History Of ◽  
North And South ◽  
Insight Into

Abstract New Zealand has a complex recent history of climatic and tectonic change that has left variable signatures in the geographic distribution and genetic structure of the region’s flora and fauna. To identify concordant patterns, a broad range of taxa must be examined and compared. In New Zealand’s North Island, a consensus is forming as to the dominant biogeographic barriers in the region although obligate freshwater taxa have not been considered in this framework. We use single-nucleotide polymorphisms to investigate phylogeography in the widespread obligate freshwater fish Gobiomorphus basalis on the North Island. Phylogeographic patterns within G. basalis reveal biogeographic disjunctions that are in some ways consistent and in other ways at odds with established patterns, providing insight into the processes that have shaped the islands’ biogeography. We also use phylogeography to delineate species boundaries within the entire New Zealand radiation of Gobiomorphus and find that it contains several morphologically cryptic species. We resolve two clades within G. basalis that correspond to areas north and south of the Taupo Volcanic Zone. We confirm the distinctiveness of Gobiomorphus alpinus relative to Gobiomorphus cotidianus, as well as the presence of two lineages within Gobiomorphus breviceps that were previously identified based on mitochondrial data.

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