Drosophila simulans: A Species with Improved Resolution in Evolve and Resequence Studies

The combination of experimental evolution with high-throughput sequencing of pooled individuals—i.e., evolve and resequence (E&R)—is a powerful approach to study adaptation from standing genetic variation under controlled, replicated conditions. Nevertheless, E&R studies in Drosophila melano...

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Main Authors: Neda Barghi, Raymond Tobler, Viola Nolte, Christian Schlötterer
Format: Article
Language:English
Published: Oxford University Press 2017-07-01
Series:G3: Genes, Genomes, Genetics
Subjects:
Online Access:http://g3journal.org/lookup/doi/10.1534/g3.117.043349
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author Neda Barghi
Raymond Tobler
Viola Nolte
Christian Schlötterer
author_facet Neda Barghi
Raymond Tobler
Viola Nolte
Christian Schlötterer
author_sort Neda Barghi
collection DOAJ
description The combination of experimental evolution with high-throughput sequencing of pooled individuals—i.e., evolve and resequence (E&R)—is a powerful approach to study adaptation from standing genetic variation under controlled, replicated conditions. Nevertheless, E&R studies in Drosophila melanogaster have frequently resulted in inordinate numbers of candidate SNPs, particularly for complex traits. Here, we contrast the genomic signature of adaptation following ∼60 generations in a novel hot environment for D. melanogaster and D. simulans. For D. simulans, the regions carrying putatively selected loci were far more distinct, and thus harbored fewer false positives, than those in D. melanogaster. We propose that species without segregating inversions and higher recombination rates, such as D. simulans, are better suited for E&R studies that aim to characterize the genetic variants underlying the adaptive response.
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spelling doaj.art-0b7f0c3979f143d291db75d264f0d4342022-12-21T18:23:30ZengOxford University PressG3: Genes, Genomes, Genetics2160-18362017-07-01772337234310.1534/g3.117.04334930Drosophila simulans: A Species with Improved Resolution in Evolve and Resequence StudiesNeda BarghiRaymond ToblerViola NolteChristian SchlöttererThe combination of experimental evolution with high-throughput sequencing of pooled individuals—i.e., evolve and resequence (E&R)—is a powerful approach to study adaptation from standing genetic variation under controlled, replicated conditions. Nevertheless, E&R studies in Drosophila melanogaster have frequently resulted in inordinate numbers of candidate SNPs, particularly for complex traits. Here, we contrast the genomic signature of adaptation following ∼60 generations in a novel hot environment for D. melanogaster and D. simulans. For D. simulans, the regions carrying putatively selected loci were far more distinct, and thus harbored fewer false positives, than those in D. melanogaster. We propose that species without segregating inversions and higher recombination rates, such as D. simulans, are better suited for E&R studies that aim to characterize the genetic variants underlying the adaptive response.http://g3journal.org/lookup/doi/10.1534/g3.117.043349experimental evolutionevolve and resequenceDrosophila simulansDrosophila melanogasterchromosomal inversions
spellingShingle Neda Barghi
Raymond Tobler
Viola Nolte
Christian Schlötterer
Drosophila simulans: A Species with Improved Resolution in Evolve and Resequence Studies
G3: Genes, Genomes, Genetics
experimental evolution
evolve and resequence
Drosophila simulans
Drosophila melanogaster
chromosomal inversions
title Drosophila simulans: A Species with Improved Resolution in Evolve and Resequence Studies
title_full Drosophila simulans: A Species with Improved Resolution in Evolve and Resequence Studies
title_fullStr Drosophila simulans: A Species with Improved Resolution in Evolve and Resequence Studies
title_full_unstemmed Drosophila simulans: A Species with Improved Resolution in Evolve and Resequence Studies
title_short Drosophila simulans: A Species with Improved Resolution in Evolve and Resequence Studies
title_sort drosophila simulans a species with improved resolution in evolve and resequence studies
topic experimental evolution
evolve and resequence
Drosophila simulans
Drosophila melanogaster
chromosomal inversions
url http://g3journal.org/lookup/doi/10.1534/g3.117.043349
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