Gene expression in the brain of a migratory songbird during breeding and migration

Movement Ecology
John BossS Bensch

Abstract

We still have limited knowledge about the underlying genetic mechanisms that enable migrating species of birds to navigate the globe. Here we make an attempt to get insight into the genetic architecture controlling this complex innate behaviour. We contrast the gene expression profiles of two closely related songbird subspecies with divergent migratory phenotypes. In addition to comparing differences in migratory strategy we include a temporal component and contrast patterns between breeding adults and autumn migrating juvenile birds of both subspecies. The two willow warbler subspecies, Phylloscopus trochilus trochilus and P. t. acredula, are remarkably similar both in phenotype and genotype and have a narrow contact zone in central Scandinavia. Here we used a microarray gene chip representing 23,136 expressed sequence tags (ESTs) from the zebra finch Taeniopygia guttata to identify mRNA level differences in willow warbler brain tissue in relation to subspecies and season. Out of the 22,109 EST probe sets that remained after filtering poorly binding probes, we found 11,898 (51.8 %) probe sets that could be reliably and uniquely matched to a total of 6,758 orthologous zebra finch genes. The two subspecies showed very similar le...Continue Reading

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Citations

Nov 2, 2016·Molecular Ecology·Rachel A JohnstonThomas B Smith
Jan 31, 2018·Experimental Physiology·Aakansha SharmaVinod Kumar
Oct 11, 2017·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Susanne ÅkessonBarbara Helm
Oct 11, 2017·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Barbara HelmGuy Bloch
Dec 2, 2018·PeerJ·Roberto Carlos Frias-SolerMichael Wink
Apr 12, 2019·Behavioral Ecology : Official Journal of the International Society for Behavioral Ecology·Tiffany C ArmentaRobert K Wayne
Mar 31, 2020·Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics·Roberto Carlos Frias-SolerFranz Bairlein
Jun 10, 2021·The Journal of Experimental Biology·Aakansha SharmaVinod Kumar

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Methods Mentioned

BETA
chip
electrophoresis
chips
RNA-seq

Software Mentioned

Revigo
R Core Development Team
R
affy
CORNA R package
Ensembl
affyPLM
SimRel
blastn
biomart

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