Differences in mitochondrial efficiency explain individual variation in growth performance.

ABSTRACT: The physiological causes of intraspecific differences in fitness components such as growth rate are currently a source of debate. It has been suggested that differences in energy metabolism may drive variation in growth, but it remains unclear whether covariation between growth rates and energy metabolism is: (i) a result of certain individuals acquiring and consequently allocating more resources to growth, and/or is (ii) determined by variation in the efficiency with which those resources are transformed into growth. Studies of individually housed animals under standardized nutritional conditions can help shed light on this debate. Here we quantify individual variation in metabolic efficiency in terms of the amount of adenosine triphosphate (ATP) generated per molecule of oxygen consumed

SUBMITTER: Salin K 

PROVIDER: S-EPMC6732382 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature