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PeerJ. 2017 May 02;5:e3275. doi: 10.7717/peerj.3275. eCollection 2017.

Transcriptome assembly and candidate genes involved in nutritional programming in the swordtail fish .

PeerJ

Yuan Lu, Charlotte M Klimovich, Kalen Z Robeson, William Boswell, Oscar Ríos-Cardenas, Ronald B Walter, Molly R Morris

Affiliations

  1. Molecular Bioscience Research Group, Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX, USA.
  2. Department of Biological Sciences, Ohio University, Athens, OH, USA.
  3. Red de Biología Evolutiva, Instituto de Ecología A.C, Xalapa, Veracruz, Mexico.

PMID: 28480144 PMCID: PMC5417068 DOI: 10.7717/peerj.3275

Abstract

BACKGROUND: Nutritional programming takes place in early development. Variation in the quality and/or quantity of nutrients in early development can influence long-term health and viability. However, little is known about the mechanisms of nutritional programming. The live-bearing fish

METHODS: We first examined the influence of both juvenile environment (varied in nutrition and density) and adult environment (varied in nutrition) on behaviors involved in energy acquisition and energy expenditure in adult male

RESULTS: We found that both the juvenile and adult environments influenced the energy intake behavior, while only the adult environment influenced energy expenditure. In addition, there were significant interactions between the genetically influenced size classes and the environments that influenced energy intake and energy expenditure, with males from one of the four size classes (Y-II) responding in the opposite direction as compared to the other males examined. When we compared the brains of males of the Y-II size class reared in a low quality juvenile environment to males from the same size class reared in high quality juvenile environment, 131 genes were differentially expressed, including metabolism and appetite master regulator

DISCUSSION: Our study provides evidence for nutritional programming in

Keywords: Energy homeostasis; RNA-Seq; Transcriptome; Xiphophorus multilineatus

Conflict of interest statement

The authors declare there are no competing interests.

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