Evidence map›Paper›PMID 23845108›Full record

ArticleBMC genomics2013

Genomics analysis of potassium channel genes in songbirds reveals molecular specializations of brain circuits for the maintenance and production of learned vocalizations.

Peter V Lovell, Julia B Carleton, Claudio V Mello

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.7field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 36 citations in OpenAlex.

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  16. Long-term sensitization training inLearning & memory (Cold Spring Harbor, N.Y.) · 2017
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Peter V Lovell
Julia B Carleton
Claudio V Mello
Oregon Health & Science University · US

Funding

A Gene Expression Brain Atlas of the Zebra Finch.R24GM092842 · NIGMS · OREGON HEALTH & SCIENCE UNIVERSITY · PI MELLO, CLAUDIO V · 2010 to 2013
$1.5M
Molecular Profiling of Song Nucleus HVC in the Zebra FinchR03NS059755 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI MELLO, CLAUDIO V · 2008 to 2009
$154k
NIGMS NIH HHS R24 GM092842NIGMS NIH HHS R24-GM092842NINDS NIH HHS R03 NS059755NINDS NIH HHS R03-NS059755
6 · The paper itself

Abstract

backgroundA fundamental question in molecular neurobiology is how genes that determine basic neuronal properties shape the functional organization of brain circuits underlying complex learned behaviors. Given the growing availability of complete vertebrate genomes, comparative genomics represents a promising approach to address this question. Here we used genomics and molecular approaches to study how ion channel genes influence the properties of the brain circuitry that regulates birdsong, a learned vocal behavior with important similarities to human speech acquisition. We focused on potassium (K-)Channels, which are major determinants of neuronal cell excitability.

resultsWe identified 107 K-Channel finch genes, including 6 novel genes common to non-mammalian vertebrate lineages. Twenty human genes are absent in songbirds, birds, or sauropsids, or unique to mammals, suggesting K-Channel properties may be lineage-specific. We also identified specific family members with insertions/deletions and/or high dN/dS ratios compared to chicken, a non-vocal learner. In situ hybridization revealed that while most K-Channel genes are broadly expressed in the brain, a subset is selectively expressed in song nuclei, representing molecular specializations of the vocal circuitry.

conclusionsTogether, these findings shed new light on genes that may regulate biophysical and excitable properties of the song circuitry, identify potential targets for the manipulation of the song system, and reveal genomic specializations that may relate to the emergence of vocal learning and associated brain areas in birds.

Indexed as

LearningVocalization, AnimalAllelesAmino Acid SequenceAnimalsBrainChickensFinchesGene ExpressionHumansINDEL MutationMaleMolecular Sequence DataPotassium ChannelsSelection, GeneticSequence AlignmentPotassium Channels

Identifiers

PMID23845108
PMCPMC3711925
OpenAlexW2167948229

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.