scholarly journals Evidence of Recent Fine-Scale Population Structuring in South American Puma concolor

Diversity ◽  
2017 ◽  
Vol 9 (4) ◽  
pp. 44 ◽  
Author(s):  
Bruno Saranholi ◽  
Karla Chávez-Congrains ◽  
Pedro Galetti
Keyword(s):  
Puma Concolor ◽  
South American ◽  
Fine Scale ◽  
Scale Population ◽  
Population Structuring

scholarly journals RAD sequencing of common whelk, Buccinum undatum, reveals fine‐scale population structuring in Europe and cryptic speciation within the North Atlantic

2021 ◽  
Vol 11 (6) ◽  
pp. 2616-2629
Author(s):  
Jake Goodall ◽  
Kristen Marie Westfall ◽  
Hildur Magnúsdóttir ◽  
Snæbjörn Pálsson ◽  
Erla Björk Örnólfsdóttir ◽  
...  
Keyword(s):  
North Atlantic ◽  
Cryptic Speciation ◽  
Rad Sequencing ◽  
Fine Scale ◽  
Buccinum Undatum ◽  
The North ◽  
Scale Population ◽  
Population Structuring ◽  
The North Atlantic

Microsatellite gene diversity analysis in anadromous arctic char, Salvelinus alpinus, from Labrador, Canada

1998 ◽  
Vol 55 (5) ◽  
pp. 1264-1272 ◽  
Author(s):  
Louis Bernatchez ◽  
J Brian Dempson ◽  
Sylvain Martin
Keyword(s):  
Mitochondrial Dna ◽  
Salvelinus Alpinus ◽  
Gene Diversity ◽  
Arctic Char ◽  
Diversity Analysis ◽  
Fine Scale ◽  
Geographic Scale ◽  
Scale Population ◽  
Population Structuring ◽  
Heterozygous Deficiency

We analysed six loci among 257 Arctic char (Salvelinus alpinus) representing seven locations in Labrador and Newfoundland to provide a first assessment of microsatellites gene diversity in anadromous char and to determine the geographic scale of population structuring within the species. The number of alleles per locus varied between 9 and 48, and gene diversity ranged from 0.190 to 0.968. Significant FST and differences in allele frequencies were observed among most samples, as well as heterozygous deficiency, which was indicative of a Wahlund's effect. These results implied the existence of genetically distinct populations on a microgeographic scale (less than 10 km) and that our samples represented an admixture of char from those populations that interchange among rivers for owerwintering, in congruence with tagging investigations. These results indicate that microsatellites potentially offer more sensitivity than allozymes and mitochondrial DNA to infer fine-scale population structure in anadromous arctic char.

Genome-Wide Single Nucleotide Polymorphisms are Robust in Resolving Fine-Scale Population Genetic Structure of the Small Brown Planthopper, Laodelphax striatellus (Fallén) (Hemiptera: Delphacidae)

2019 ◽  
Vol 112 (5) ◽  
pp. 2362-2368
Author(s):  
Yan Liu ◽  
Lei Chen ◽  
Xing-Zhi Duan ◽  
Dian-Shu Zhao ◽  
Jing-Tao Sun ◽  
...  
Keyword(s):  
Population Structure ◽  
Discriminant Analysis ◽  
Genetic Structure ◽  
Population Genetic ◽  
Brown Planthopper ◽  
Fine Scale ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Small Brown Planthopper ◽  
Scale Population

Abstract Deciphering genetic structure and inferring migration routes of insects with high migratory ability have been challenging, due to weak genetic differentiation and limited resolution offered by traditional genotyping methods. Here, we tested the ability of double digest restriction-site associated DNA sequencing (ddRADseq)-based single nucleotide polymorphisms (SNPs) in revealing the population structure relative to 13 microsatellite markers by using four small brown planthopper populations as subjects. Using ddRADseq, we identified 230,000 RAD loci and 5,535 SNP sites, which were present in at least 80% of individuals across the four populations with a minimum sequencing depth of 10. Our results show that this large SNP panel is more powerful than traditional microsatellite markers in revealing fine-scale population structure among the small brown planthopper populations. In contrast to the mixed population structure suggested by microsatellites, discriminant analysis of principal components (DAPC) of the SNP dataset clearly separated the individuals into four geographic populations. Our results also suggest the DAPC analysis is more powerful than the principal component analysis (PCA) in resolving population genetic structure of high migratory taxa, probably due to the advantages of DAPC in using more genetic variation and the discriminant analysis function. Together, these results point to ddRADseq being a promising approach for population genetic and migration studies of small brown planthopper.

Native, exotic, and livestock prey: assessment of puma Puma concolor diet in South American temperate region

2021 ◽  
Author(s):  
M. M. Guerisoli ◽  
O. Gallo ◽  
S. Martinez ◽  
E. M. Luengos Vidal ◽  
M. Lucherini
Keyword(s):  
Puma Concolor ◽  
South American ◽  
Temperate Region

scholarly journals Stirred but not shaken: population and recruitment genetics of the scallop (Pecten fumatus) in Bass Strait, Australia

2016 ◽  
Vol 73 (9) ◽  
pp. 2333-2341 ◽  
Author(s):  
Jennifer R. Ovenden ◽  
Bree J. Tillett ◽  
Michael Macbeth ◽  
Damien Broderick ◽  
Fiona Filardo ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Allelic Variation ◽  
Open Water ◽  
Marine Species ◽  
Population Connectivity ◽  
Valuable Insight ◽  
Fine Scale ◽  
Scale Population

Abstract We report population genetic structure and fine-scale recruitment processes for the scallop beds (Pecten fumatus) in Bass Strait and the eastern coastline of Tasmania in southern Australia. Conventional population pairwise FST analyses are compared with novel discriminant analysis of principal components (DAPC) to assess population genetic structure using allelic variation in 11 microsatellite loci. Fine-scale population connectivity was compared with oceanic features of the sampled area. Disjunct scallop beds were genetically distinct, but there was little population genetic structure between beds connected by tides and oceanic currents. To identify recruitment patterns among and within beds, pedigree analyses determined the distribution of parent–offspring and sibling relationships in the sampled populations. Beds in northeastern Bass Strait were genetically distinct to adjacent beds (FST 0.003–0.005) and may not contribute to wider recruitment based on biophysical models of larval movement. Unfortunately, pedigree analyses lacked power to further dissect fine-scale recruitment processes including self-recruitment. Our results support the management of disjunct populations as separate stocks and the protection of source populations among open water beds. The application of DAPC and parentage analyses in the current study provided valuable insight into their potential power to determine population connectivity in marine species with larval dispersal.

scholarly journals Variation in fine-scale genetic structure and local dispersal patterns between peripheral populations of a South American passerine bird

2017 ◽  
Vol 7 (20) ◽  
pp. 8363-8378 ◽  
Author(s):  
Esteban Botero-Delgadillo ◽  
Verónica Quirici ◽  
Yanina Poblete ◽  
Élfego Cuevas ◽  
Sylvia Kuhn ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Passerine Bird ◽  
Peripheral Populations ◽  
South American ◽  
Fine Scale ◽  
Dispersal Patterns ◽  
Local Dispersal
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