Effect of genetic background on the developmental expression of c-fos and c-myc in chicken

Jong Won Kim, Daniel L. Fletcher, Dennis R. Campion, H Rex Gaskins, Roger G. Dean

Research output: Contribution to journalArticle

Abstract

The developmental expression of the protooncogenes, c-fos and c-myc, in muscle and liver of 14-and 19-day embryos and 1-, 6-, 8-and 28-day-old chicks of Athens Canadian Random Bred (ACRB) Single Comb White Leghorn (SCWL) and Peterson X Arbor Acres commercial broiler (PXAA) was determined. For the three stocks of chicken, significant differences were found in c-fos and c-myc expression. For both muscle and liver, averaged across ages, abundance of c-fos RNA was highest in PXAA and lowest in ACRB with differences significant at the P<0.01 level. c-myc RNA levels were significantly higher (P<0.01) in PXAA than in ACRB or SCWL liver. Taken over the developmental period, expression of c-fos RNA in muscle increased at different rates between breeds from 14-day embryo levels to peak levels in 6- to 8-day-old chicks and declined in 28-day-old chicks. Levels of c-fos were much lower in liver and showed no consistent differences related to developmental stage. A steady decline in c-myc from 14-day embryo levels to 28-day-old chicks was found in both muscle and liver. This decline in c-myc levels generally parallels the decline in relative growth rates which occurs in all breeds over the developmental period. In liver, the fast growing PXAA had the highest levels of c-myc. c-fos, on the other hand, showed elevated levels in PXAA for both muscle and liver and distinctly different patterns between these two tissues over the developmental period, suggesting tissue-specific involvement in growth.

Original languageEnglish (US)
Pages (from-to)85-90
Number of pages6
JournalMolecular Biology Reports
Volume16
Issue number2
DOIs
StatePublished - May 1 1992
Externally publishedYes

Fingerprint

Chickens
Liver
Muscles
Comb and Wattles
Embryonic Structures
RNA
Growth
Genetic Background

Keywords

  • c-fos
  • c-myc
  • chick
  • embryo
  • liver
  • muscle

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics

Cite this

Effect of genetic background on the developmental expression of c-fos and c-myc in chicken. / Kim, Jong Won; Fletcher, Daniel L.; Campion, Dennis R.; Gaskins, H Rex; Dean, Roger G.

In: Molecular Biology Reports, Vol. 16, No. 2, 01.05.1992, p. 85-90.

Research output: Contribution to journalArticle

Kim, Jong Won ; Fletcher, Daniel L. ; Campion, Dennis R. ; Gaskins, H Rex ; Dean, Roger G. / Effect of genetic background on the developmental expression of c-fos and c-myc in chicken. In: Molecular Biology Reports. 1992 ; Vol. 16, No. 2. pp. 85-90.
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