The mitochondrial contribution to animal performance, adaptation, and life-history variation

Type Article
Date 2018-09
Language English
Author(s) Hood Wendy R.1, Austad Steven N.2, Bize Pierre3, Jimenez Ana Gabriela4, Montooth Kristi L.5, Schulte Patricia M.6, Scott Graham R.7, Sokolova Inna8, 9, Treberg Jason R.10, 11, 12, Salin KarineORCID13
Affiliation(s) 1 : Auburn Univ, Dept Biol Sci, Auburn, AL 36849 USA.
2 : Univ Alabama Birmingham, Dept Biol, Birmingham, AL 35294 USA.
3 : Univ Aberdeen, Sch Biol Sci, Aberdeen AB24 2TZ, Scotland.
4 : Colgate Univ, Dept Biol, 13 Oak Dr, Hamilton, NY 13346 USA.
5 : Univ Nebraska, Sch Biol Sci, Lincoln, NE 68588 USA.
6 : Univ British Columbia, Dept Zool, Vancouver, BC V6T 1Z4, Canada.
7 : McMaster Univ, Dept Biol, Hamilton, ON L8S 4K1, Canada.
8 : Univ Rostock, Inst Biol Sci, Dept Marine Biol, D-18055 Rostock, Germany.
9 : Univ Rostock, Interdisciplinary Fac, Dept Maritime Syst, D-18055 Rostock, Germany.
10 : Univ Manitoba, Dept Biol Sci, Winnipeg, MB R3T 2N2, Canada.
11 : Univ Manitoba, Dept Food & Human Nutr Sci, Winnipeg, MB R3T 2N2, Canada.
12 : Univ Manitoba, Ctr Aging, Winnipeg, MB R3T 2N2, Canada.
13 : IFREMER, Unite Physiol Fonct Organismes Marins LEMAR UMR 6, F-29280 Plouzane, France.
Meeting Symposium ‘‘Inside the Black Box: The Mitochondrial Basis of Life-history Variation and Animal Performance’’ - Annual meeting of the Society for Integrative and Comparative Biology, January 3–7, 2018 at San Francisco, California.
Source Integrative And Comparative Biology (1540-7063) (Oxford Univ Press Inc), 2018-09 , Vol. 58 , N. 3 , P. 480-485
DOI 10.1093/icb/icy089
WOS© Times Cited 27
Abstract

Animals display tremendous variation in their rates of growth, reproductive output, and longevity. While the physiological and molecular mechanisms that underlie this variation remain poorly understood, the performance of the mitochondrion has emerged as a key player. Mitochondria not only impact the performance of eukaryotes via their capacity to produce ATP, but they also play a role in producing heat and reactive oxygen species and function as a major signalling hub for the cell. The papers included in this special issue emerged from a symposium titled “Inside the Black Box: The Mitochondrial Basis of Life-history Variation and Animal Performance”. Based on studies of diverse animal taxa, three distinct themes emerged from these papers. 1) When linking mitochondrial function to components of fitness, it is crucial that mitochondrial assays are performed in conditions as close as the intracellular conditions experienced by the mitochondria in vivo. 2) Functional plasticity allows mitochondria to retain their performance, as well as that of their host, over a range of exogenous conditions, and selection on mitochondrial and nuclear-derived proteins can optimize the match between the environment and the bioenergetic capacity of the mitochondrion. Finally, 3) studies of wild and wild-derived animals suggest that mitochondria play a central role in animal performance and life history strategy. Taken as a whole, we hope that these papers will foster discussion and inspire new hypotheses and innovations that will further our understanding of the mitochondrial processes that underlie variation in life history traits and animal performance.

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Hood Wendy R., Austad Steven N., Bize Pierre, Jimenez Ana Gabriela, Montooth Kristi L., Schulte Patricia M., Scott Graham R., Sokolova Inna, Treberg Jason R., Salin Karine (2018). The mitochondrial contribution to animal performance, adaptation, and life-history variation. Integrative And Comparative Biology, 58(3), 480-485. Publisher's official version : https://doi.org/10.1093/icb/icy089 , Open Access version : https://archimer.ifremer.fr/doc/00449/56023/