scholarly journals Genetic Structure and Evolutionary History of Three Alpine Sclerophyllous Oaks in East Himalaya-Hengduan Mountains and Adjacent Regions

2016 ◽  
Vol 7 ◽  
Author(s):  
Li Feng ◽  
Qi-Jian Zheng ◽  
Zeng-Qiang Qian ◽  
Jia Yang ◽  
Yan-Ping Zhang ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Evolutionary History ◽  
Hengduan Mountains ◽  
History Of

Population genetic structure and evolutionary history of North Atlantic beluga whales (Delphinapterus leucas) from West Greenland, Svalbard and the White Sea

Polar Biology ◽  
2010 ◽  
Vol 33 (9) ◽  
pp. 1179-1194 ◽  
Author(s):  
Gregory O’Corry-Crowe ◽  
Christian Lydersen ◽  
Mads Peter Heide-Jørgensen ◽  
Lauren Hansen ◽  
Lev M. Mukhametov ◽  
...  
Keyword(s):  
Genetic Structure ◽  
North Atlantic ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Evolutionary History ◽  
White Sea ◽  
Delphinapterus Leucas ◽  
The White Sea ◽  
Beluga Whales ◽  
History Of

scholarly journals Deep divergence between island populations in lichenized fungi

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Silke Werth ◽  
Peter Meidl ◽  
Christoph Scheidegger
Keyword(s):  
Genetic Structure ◽  
Population Genetic ◽  
Evolutionary History ◽  
Geographic Distance ◽  
Population Subdivision ◽  
Lobaria Pulmonaria ◽  
Island Populations ◽  
History Of ◽  
High Degree ◽  
Complex Evolutionary History

AbstractMacaronesia is characterized by a high degree of endemism and represents a noteworthy system to study the evolutionary history of populations and species. Here, we compare the population-genetic structure in three lichen-forming fungi, the widespread Lobaria pulmonaria and two Macaronesian endemics, L. immixta and L. macaronesica, based on microsatellites. We utilize population genetic approaches to explore population subdivision and evolutionary history of these taxa on the Canary Islands, Madeira, Azores, and the western Iberian Peninsula. A common feature in all species was the deep divergence between populations on the Azores, a pattern expected by the large geographic distance among islands. For both endemic species, there was a major split between archipelagos. In contrast, in the widespread L. pulmonaria, divergent individuals were distributed across multiple archipelagos, suggesting a complex evolutionary history involving repeated migration between islands and mainland.

scholarly journals Inconsistent genetic structure among members of a multitrophic system: did bruchid parasitoids (Horismenusspp.) escape the effects of bean domestication?

2012 ◽  
Vol 103 (2) ◽  
pp. 182-192 ◽  
Author(s):  
S. Laurin-Lemay ◽  
B. Angers ◽  
B. Benrey ◽  
J. Brodeur
Keyword(s):  
Genetic Structure ◽  
Host Plant ◽  
Evolutionary History ◽  
Evolutionary Dynamics ◽  
Trophic Levels ◽  
Plant Domestication ◽  
Parasitoid Species ◽  
Genetic Structuring ◽  
Ancestral Gene ◽  
History Of

AbstractAnthropogenic range expansion and cultural practices have modified the distribution, abundance and genetic diversity of domesticated organisms, thereby altering multitrophic assemblages through space and time. The putative Mesoamerican domestication centre of the common bean,Phaseolus vulgarisL., in Mexico allows investigating the effects of plant domestication on the genetic structure of members of a multitrophic system. The aim of this study was to compare the evolutionary history ofHorismenusparasitoids (Hymenoptera: Eulophidae) to those of their bruchid beetle hosts (Coleoptera: Bruchidae) and their domesticated host plant (P. vulgaris), in the context of traditional agriculture in Mexico. We analyzed the population genetic structure of fourHorismenusspecies in Mexico using mitochondrialCOIhaplotype data. The two most abundant parasitoid species wereHorismenus depressusandHorismenus missouriensis. Horismenus missouriensiswere infected byWolbachiaendosymbionts and had little to no population differentiation (FST = 0.06). We suspect the mitochondrial history ofH. missouriensisto be blurred byWolbachia, because differentiation among infected vs. non-infected individuals exists (FST = 0.11). Populations ofH. depressuswere found to be highly differentiated (FST = 0.34), but the genetic structuring could not be explained by tested spatial components. We then compared the genetic structure observed in this parasitoid species to previously published studies on bruchid beetles and their host plants. Despite extensive human-mediated migration and likely population homogenization of its twoAcanthoscelidesbruchid beetle hosts,H. depressuspopulations are structured like its host plant, by a recent dispersal from a diverse ancestral gene pool. Distinct evolutionary dynamics may explain inconsistent patterns among trophic levels. Parasitoids likely migrate from wild bean populations and are poorly adapted to bean storage conditions similar to their bruchid beetle hosts. Integrating several trophic levels to the study of evolutionary history has proven to be fruitful in detecting different ecological responses to human-mediated disturbances and host parasite interactions.

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