Spatial genetic structure in natural populations of Caryocar brasiliense Camb. (Caryocareceae) in the North of Minas Gerais, Brazil

2012 ◽  
Vol 43 ◽  
pp. 205-209 ◽  
Author(s):  
Afranio Farias de Melo ◽  
Dulcinéia de Carvalho ◽  
Fábio A. Vieira ◽  
Dario A. de Oliveira
Keyword(s):  
Genetic Structure ◽  
Spatial Genetic Structure ◽  
Natural Populations ◽  
Minas Gerais ◽  
The North ◽  
Caryocar Brasiliense

Distinctiveness of declining northern populations of Blanchard’s Cricket Frog (Acris blanchardi) justifies recovery efforts

2010 ◽  
Vol 88 (6) ◽  
pp. 553-566 ◽  
Author(s):  
Kaela B. Beauclerc ◽  
Bob Johnson ◽  
Bradley N. White
Keyword(s):  
Genetic Structure ◽  
Spatial Genetic Structure ◽  
Mitochondrial Control Region ◽  
Peripheral Populations ◽  
Evolutionary Potential ◽  
Widespread Species ◽  
Range Edge ◽  
The North ◽  
Central United States ◽  
Cricket Frog

Peripheral populations of widespread species are often considered unworthy of conservation efforts; however, they may be adapted to the conditions found at the range edge and are therefore important to the future evolutionary potential of the species. Blanchard’s Cricket Frog (Acris blanchardi Harper, 1947) is widespread and abundant throughout the central United States, but is declining at the northern edge of its range. To assess the distinctiveness and conservation value of the northern populations, we investigated the spatial genetic structure and phylogeography of this anuran using mitochondrial control region sequences. Analysis of 479 individuals identified 101 haplotypes, with relatively low nucleotide diversity. Two moderately divergent clades were found. One was restricted to the southwest, which was probably a refugium during the Pleistocene, whereas the other occurred primarily across the north and is likely the result of postglacial colonization. The genetic distinctiveness of northern populations indicates the potential for adaptive differences of individuals in this region relative to those in the south. We therefore conclude that conservation efforts are justified for the declining northern populations of Blanchard’s Cricket Frog, and we use the spatial genetic structure described here to develop specific recommendations for this anuran.

Spatial genetic structure in wild cherry (Prunus avium L.): I. variation among natural populations of different density

2010 ◽  
Vol 7 (2) ◽  
pp. 271-283 ◽  
Author(s):  
Céline Jolivet ◽  
Aki M. Höltken ◽  
Heike Liesebach ◽  
Wilfried Steiner ◽  
Bernd Degen
Keyword(s):  
Genetic Structure ◽  
Prunus Avium ◽  
Spatial Genetic Structure ◽  
Natural Populations ◽  
Wild Cherry ◽  
Prunus Avium L

scholarly journals Does population genetic structure support present management regulations of the northern shrimp (Pandalus borealis) in Skagerrak and the North Sea?

2014 ◽  
Vol 72 (3) ◽  
pp. 863-871 ◽  
Author(s):  
Halvor Knutsen ◽  
Per Erik Jorde ◽  
Enrique Blanco Gonzalez ◽  
Ole Ritzau Eigaard ◽  
Ricardo T. Pereyra ◽  
...  
Keyword(s):  
Genetic Structure ◽  
North Sea ◽  
Spatial Genetic Structure ◽  
Economic Value ◽  
Pandalus Borealis ◽  
The North ◽  
Management Regime ◽  
Northern Shrimp ◽  
Population Structuring ◽  
The North Sea

Abstract Population structuring in the northern shrimp (Pandalus borealis) in the North Sea area (including Fladen and Skagerrak) was studied by microsatellite DNA analyses. Screening 20 sample locations in the open ocean and Skagerrak fjords for nine loci revealed low, but significant genetic heterogeneity. The spatial genetic structure among oceanic samples of Skagerrak and the eastern North Sea was weak and non-significant, consistent with the current management regime of one single stock. However, Skagerrak fjord samples generally displayed elevated levels of genetic differentiation, and significantly so in several pairwise comparisons with other fjords and oceanic samples. Although the Skagerrak fjord populations are of less economic value, some of them are regulated separately (e.g. the Gullmarsfjord) and local stocks may prove important to uphold genetic variability and biocomplexity in a changing environment.

Sign in / Sign up

Export Citation Format

Share Document