Laupala
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA509479 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR8305560.fastq.gz | Fastqsanger.gz | |||
| SRR8305561.fastq.gz | Fastqsanger.gz | |||
| SRR8305562.fastq.gz | Fastqsanger.gz | |||
| SRR8305563.fastq.gz | Fastqsanger.gz | |||
| SRR8305564.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 18 |
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Project description:A male zebra finch begins to learn to sing by memorizing a tutorM-bM-^@M-^Ys song during a sensitive period in juvenile development. Tutor song memorization requires molecular signaling within the auditory forebrain. Using microarray and in situ hybridizations, we tested whether the auditory forebrain at an age just before tutoring expresses a different set of genes compared with later life after song learning has ceased. Microarray analysis revealed differences in expression of thousands of genes in the male auditory forebrain at posthatch day 20 (P20) compared with adulthood. Furthermore, song playbacks had essentially no impact on gene expression in P20 auditory forebrain, but altered expression of hundreds of genes in adults. Most genes that were song-responsive in adults were expressed at constitutively high levels at P20. Using in situ hybridization with a representative sample of 44 probes, we confirmed these effects and found that birds at P20 and P45 were similar in their gene expression patterns. Additionally, eight of the probes showed maleM-bM-^@M-^Sfemale differences in expression. We conclude that the developing auditory forebrain is in a very different molecular state from the adult, despite its relatively mature gross morphology and electrophysiological responsiveness to song stimuli. Developmental gene expression changes may contribute to fine-tuning of cellular and molecular properties necessary for song learning. Post-hatch day 20 male zebra finches that had been raised in acoustic isolation with a foster female or adult male zebra finches were placed in a song playback chamber. The next day, birds heard either silence (control) or 30 minutes of novel song. All samples were hybridized against the universal SoNG RNA reference pool, 6 biological replicates per group in each of 4 groups.
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