scholarly journals Assessing patterns of hybridization between North Atlantic eels using diagnostic single-nucleotide polymorphisms

Heredity ◽  
2014 ◽  
Vol 112 (6) ◽  
pp. 627-637 ◽  
Author(s):  
J M Pujolar ◽  
M W Jacobsen ◽  
T D Als ◽  
J Frydenberg ◽  
E Magnussen ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
North Atlantic ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Atlantic Eels

scholarly journals Range-wide parallel climate-associated genomic clines in Atlantic salmon

2017 ◽  
Vol 4 (11) ◽  
pp. 171394 ◽  
Author(s):  
Nicholas W. Jeffery ◽  
Ryan R. E. Stanley ◽  
Brendan F. Wringe ◽  
Javier Guijarro-Sabaniel ◽  
Vincent Bourret ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Atlantic Salmon ◽  
North Atlantic ◽  
Large Scale ◽  
Intraspecific Diversity ◽  
Clinal Variation ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
The North ◽  
The North Atlantic

Clinal variation across replicated environmental gradients can reveal evidence of local adaptation, providing insight into the demographic and evolutionary processes that shape intraspecific diversity. Using 1773 genome-wide single nucleotide polymorphisms we evaluated latitudinal variation in allele frequency for 134 populations of North American and European Atlantic salmon ( Salmo salar ). We detected 84 (4.74%) and 195 (11%) loci showing clinal patterns in North America and Europe, respectively, with 12 clinal loci in common between continents. Clinal single nucleotide polymorphisms were evenly distributed across the salmon genome and logistic regression revealed significant associations with latitude and seasonal temperatures, particularly average spring temperature in both continents. Loci displaying parallel clines were associated with several metabolic and immune functions, suggesting a potential basis for climate-associated adaptive differentiation. These climate-based clines collectively suggest evidence of large-scale environmental associated differences on either side of the North Atlantic. Our results support patterns of parallel evolution on both sides of the North Atlantic, with evidence of both similar and divergent underlying genetic architecture. The identification of climate-associated genomic clines illuminates the role of selection and demographic processes on intraspecific diversity in this species and provides a context in which to evaluate the impacts of climate change.

Development of a simple method for the determination of single nucleotide polymorphisms

2010 ◽  
Vol 34 (8) ◽  
pp. S75-S75
Author(s):  
Weifeng Zhu ◽  
Zhuoqi Liu ◽  
Daya Luo ◽  
Xinyao Wu ◽  
Fusheng Wan
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Nucleotide Polymorphisms ◽  
Simple Method ◽  
Single Nucleotide

Sex Differences in Childhood Associations between DNA Markers and General Cognitive Ability

2007 ◽  
Vol 28 (3) ◽  
pp. 161-164 ◽  
Author(s):  
Rosalind Arden ◽  
Nicole Harlaar ◽  
Robert Plomin
Keyword(s):  
Sex Differences ◽  
Single Nucleotide Polymorphisms ◽  
Cognitive Ability ◽  
Dna Markers ◽  
Community Sample ◽  
Nucleotide Polymorphisms ◽  
General Cognitive Ability ◽  
Single Nucleotide ◽  
The Difference

Abstract. An association between intelligence at age 7 and a set of five single-nucleotide polymorphisms (SNPs) has been identified and replicated. We used this composite SNP set to investigate whether the associations differ between boys and girls for general cognitive ability at ages 2, 3, 4, 7, 9, and 10 years. In a longitudinal community sample of British twins aged 2-10 (n > 4,000 individuals), we found that the SNP set is more strongly associated with intelligence in males than in females at ages 7, 9, and 10 and the difference is significant at 10. If this finding replicates in other studies, these results will constitute the first evidence of the same autosomal genes acting differently on intelligence in the two sexes.

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