Current hypotheses to explain genetic chaos under the sea

Current Zoology
Bjarki EldonThomas Broquet

Abstract

Chaotic genetic patchiness (CGP) refers to surprising patterns of spatial and temporal genetic structure observed in some marine species at a scale where genetic variation should be efficiently homogenized by gene flow via larval dispersal. Here we review and discuss 4 mechanisms that could generate such unexpected patterns: selection, sweepstakes reproductive success, collective dispersal, and temporal shifts in local population dynamics. First, we review examples where genetic differentiation at specific loci was driven by diversifying selection, which was historically the first process invoked to explain CGP. Second, we turn to neutral demographic processes that may drive genome-wide effects, and whose effects on CGP may be enhanced when they act together. We discuss how sweepstakes reproductive success accelerates genetic drift and can thus generate genetic structure, provided that gene flow is not too strong. Collective dispersal is another mechanism whereby genetic structure can be maintained regardless of dispersal intensity, because it may prevent larval cohorts from becoming entirely mixed. Theoretical analyses of both the sweepstakes and the collective dispersal ideas are presented. Finally, we discuss an idea that ha...Continue Reading

References

May 1, 1979·Proceedings of the National Academy of Sciences of the United States of America·A R Place, D A Powers
Oct 1, 1975·Theoretical Population Biology·G Malécot
Dec 22, 1999·Trends in Ecology & Evolution·P O Yund
Sep 11, 2003·Proceedings. Biological Sciences·Nicolas BiernePatrice David
Oct 3, 2003·Journal of Mathematical Biology·Martin Möhle, Serik Sagitov
May 25, 2004·Evolution; International Journal of Organic Evolution·Pierre FontanillasNicolas Perrin
Jun 20, 2006·Molecular Ecology·Gregory E MaesFilip A M Volckaert
Aug 17, 2006·Journal of Evolutionary Biology·A Gardner, S A West
Jan 11, 2007·Journal of Evolutionary Biology·L Lehmann
Jan 26, 2007·Ecology·Kimberly A SelkoeRobert R Warner
Feb 19, 2008·The Journal of Experimental Biology·Jeffrey L RamJörg D Hardege
Mar 19, 2008·Journal of Mathematical Biology·Matthias Birkner, Jochen Blath
Mar 22, 2008·Biometrics·Anne ChaoRobin L Chazdon
Jun 26, 2008·Proceedings of the National Academy of Sciences of the United States of America·D A SiegelK B Winters
Feb 25, 2009·Molecular Ecology·Lou Jost
May 1, 2009·Journal of Evolutionary Biology·A GardnerJ Alpedrinha
Oct 3, 2012·PloS One·Ofer Ben-TzviMoshe Kiflawi
Oct 3, 2012·PloS One·Giacomo BernardiRussell J Schmitt
Feb 5, 2013·Theoretical Population Biology·Matthias SteinrückenJochen Blath
Jun 5, 2013·Evolution; International Journal of Organic Evolution·Jonathan M YearsleyThomas Broquet
Jun 5, 2013·Evolution; International Journal of Organic Evolution·Thomas BroquetJonathan M Yearsley
Apr 23, 2014·Molecular Ecology·Aurélien Tellier, Christophe Lemaire
Feb 24, 2015·Journal of Theoretical Biology·Cody Koykka, Geoff Wild
Aug 8, 2015·The Journal of Heredity·Laura E Eierman, Matthew P Hare

❮ Previous
Next ❯

Citations

Mar 20, 2020·Evolution; International Journal of Organic Evolution·Kevin C OlsenDon R Levitan
Nov 23, 2016·Proceedings of the National Academy of Sciences of the United States of America·Daniel OttmannSu Sponaugle
Dec 1, 2016·Current Zoology·Louis V Plough
May 31, 2018·PeerJ·Federica CostantiniMarco Abbiati
Feb 3, 2020·Journal of Mathematical Biology·Fabian Freund
Dec 1, 2016·Current Zoology·Robin S WaplesJeffrey J Hard

❮ Previous
Next ❯

Methods Mentioned

BETA
electrophoresis
genotyping

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.

Related Papers

Evolution; International Journal of Organic Evolution
Thomas BroquetJonathan M Yearsley
Trends in Ecology & Evolution
P Rohani, G D Ruxton
© 2022 Meta ULC. All rights reserved