scholarly journals Genetic Structure and Evolutionary History of a Diploid Hybrid Pine Pinus densata Inferred from the Nucleotide Variation at Seven Gene Loci

2006 ◽  
Vol 23 (4) ◽  
pp. 807-816 ◽  
Author(s):  
Xiao-Fei Ma ◽  
Alfred E. Szmidt ◽  
Xiao-Ru Wang
Keyword(s):  
Genetic Structure ◽  
Evolutionary History ◽  
Nucleotide Variation ◽  
Diploid Hybrid ◽  
Pinus Densata ◽  
History Of ◽  
Hybrid Pine

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

Cytoplasmic composition in Pinus densata and population establishment of the diploid hybrid pine

2003 ◽  
Vol 12 (11) ◽  
pp. 2995-3001 ◽  
Author(s):  
Bao‐Hua Song ◽  
Xiao‐Quan Wang ◽  
Xiao‐Ru Wang ◽  
Kai‐Yu Ding ◽  
De‐Yuan Hong
Keyword(s):  
Diploid Hybrid ◽  
Pinus Densata ◽  
Hybrid Pine ◽  
Population Establishment

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 Evolutionary History of the Sex-Peptide (Acp70A) Gene Region in Drosophila melanogaster

Genetics ◽  
1997 ◽  
Vol 147 (1) ◽  
pp. 189-197 ◽  
Author(s):  
Susanna Cirera ◽  
Montserrat Aguadé
Keyword(s):  
Evolutionary History ◽  
Seminal Fluid ◽  
Accessory Gland ◽  
Nucleotide Variation ◽  
Coding Region ◽  
Sex Peptide ◽  
Historical Factors ◽  
History Of ◽  
Recent Origin ◽  
Flanking Region

Abstract In Drosophila the products of the seminal fluid stimulate oviposition and suppress remating in the female. Of all the accessory gland peptides (Acp's) involved in these two responses, the sex-peptide (coded by the Acp70A gene) is among the best characterized at the functional level. A 1.2-kb fragment encompassing the Acp70A gene of nine lines from a natural population of D. melanogaster and one allele of D. sechellia was sequenced to study the forces shaping nucleotide variation within and between species. The coding region of D. simulans and D. mauritiana was also sequenced. A Ser to Ala replacement polymorphism at the last position of the signal peptide was detected in D. melanogaster. The Ser and Ala alleles are at intermediate frequencies. The level of nucleotide variation is lower for the derived Ala allele, which is compatible with a recent origin and an increase in frequency due to positive selection. Variation at the 5′ flanking region is structured in two major highly differentiated haplotypes, whose distribution does not conform to neutral expectations. Selective and/or historical factors could contribute to the observed overall patterning of nucleotide variation at the Acp70A region.

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