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Transcriptome differences in frontal cortex between wild boar and domesticated pig.

Keren Long1, Ke Mao1, Tiandong Che1

  • 1Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, China.

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|March 15, 2018
PubMed
Summary
This summary is machine-generated.

This study compared the brain transcriptomes of wild boars and domestic pigs, identifying genes related to domestication and immune response. These findings offer insights into the genetic mechanisms underlying animal domestication.

Keywords:
domesticationpigtranscriptome

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Area of Science:

  • Genomics
  • Animal Science
  • Evolutionary Biology

Background:

  • Animal domestication involves significant trait modifications, including behavioral changes like reduced aggression.
  • Understanding the genetic underpinnings of domestication is crucial for livestock improvement and evolutionary studies.

Purpose of the Study:

  • To compare the brain frontal cortex transcriptome between wild boars and Rongchang pigs (a Chinese domestic breed).
  • To identify genes specifically expressed in each group and differentially expressed genes related to domestication.
  • To explore the functional characteristics of these genes, particularly those involved in immune response.

Main Methods:

  • Illumina RNA-sequencing was employed to analyze gene expression in the brain frontal cortex.
  • Comparative transcriptome analysis was performed between wild boar and domestic pig samples.
  • Bioinformatic tools were used to identify specific and differentially expressed genes and their functional enrichment.

Main Results:

  • 604 genes were uniquely detected in wild boars, and 639 genes were uniquely detected in Rongchang pigs.
  • Sixty differentially expressed genes were identified, with a notable enrichment in immune response-related functions.
  • Seven genes previously associated with domestication were further investigated in this context.

Conclusions:

  • The study identified distinct gene expression profiles in the brain frontal cortex of wild boars and domestic pigs.
  • Differentially expressed genes, particularly those linked to immune function, may play a role in pig domestication.
  • These findings contribute to understanding the molecular mechanisms driving animal domestication.