An examination of genetic diversity and effective population size in Atlantic salmon populations

Genetics Research
Natacha NikolicC Chevalet

Abstract

Effective population size (Ne) is an important parameter in the conservation of genetic diversity. Comparative studies of empirical data that gauge the relative accuracy of Ne methods are limited, and a better understanding of the limitations and potential of Ne estimators is needed. This paper investigates genetic diversity and Ne in four populations of wild anadromous Atlantic salmon (Salmo salar L.) in Europe, from the Rivers Oir and Scorff (France) and Spey and Shin (Scotland). We aimed to understand present diversity and historical processes influencing current population structure. Our results showed high genetic diversity for all populations studied, despite their wide range of current effective sizes. To improve understanding of high genetic diversity observed in the populations with low effective size, we developed a model predicting present diversity as a function of past demographic history. This suggested that high genetic diversity could be explained by a bottleneck occurring within recent centuries rather than by gene flow. Previous studies have demonstrated the efficiency of coalescence models to estimate Ne. Using nine subsets from 37 microsatellite DNA markers from the four salmon populations, we compared three...Continue Reading

References

Jan 1, 1995·Annual Review of Genetics·R Frankham
Jun 1, 1997·Genome Research·M D ShriverR Deka
Aug 19, 1997·Proceedings of the National Academy of Sciences of the United States of America·B Rannala, J L Mountain
Sep 2, 1998·Genetics·I J Wilson, D J Balding
Mar 31, 1999·Heredity·M C Whitlock, D E McCauley
Feb 5, 2000·Nature Biotechnology·M Schuelke
Jun 3, 2000·Genetics·J K PritchardP Donnelly
Dec 9, 2000·Molecular Biology and Evolution·J P KingR Chakraborty
Jun 9, 2001·The Journal of Heredity·E Garcia-VazquezE Beall
Aug 4, 2001·Trends in Genetics : TIG·P Ligoxygakis
Aug 4, 2001·Trends in Genetics : TIG·S G Gray
Jun 20, 2002·Genetics·Robin S Waples
Feb 11, 2005·Molecular Biology and Evolution·A J DrummondO G Pybus
Jul 29, 2005·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Jinliang Wang
Mar 1, 1931·Genetics·S Wright
Jun 28, 2007·Molecular Ecology·Juha-Pekka VähäCraig R Primmer
May 10, 2008·Genome Génome / Conseil National De Recherches Canada·M G FranckiJ M Anderson
Oct 25, 2008·BMC Evolutionary Biology·Joseph Heled, Alexei J Drummond
Feb 1, 1999·Evolution; International Journal of Organic Evolution·E E NielsenV Loeschcke

❮ Previous
Next ❯

Citations

Nov 9, 2012·Proceedings. Biological Sciences·Martin KrkosekChristopher D Todd
Jul 30, 2014·Evolutionary Applications·Natacha Nikolic, Claude Chevalet
Jul 31, 2020·PeerJ·Natacha NikolicClaude Chevalet

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.