Lifespan and reproduction of isoclonal individual E.coli in different environments

Research output: Contribution to conference without publisher/journalPosterResearch

Abstract

Lifespan and reproduction are key fitness components, both of which are influences by genetics and the environment. Tracking large numbers of genotypically known individuals throughout their lives in known environments has been challenging. Here we show for isogenic individual E. coli bacteria under controlled environments how demographic parameters and distributions in reproduction and survival change across environments. We achieve this by using a microfluidic device that traps thousands of individual E. coli cells and tracks their division (reproduction) over their lifespan. Our results show substantial variation of lifespan and reproduction within the same environment, and significant shifts in mean and variance in lifespan and reproduction among environments. Both variance and mean lifespan and reproduction decreases with increased temperature, but the ratio between the two remains surprisingly constant. The environmental dependency of neutral variability among individuals suggests different adaptive paces across environments.
Original languageEnglish
Publication date6. Oct 2015
Publication statusPublished - 6. Oct 2015
EventEvolutionary Demography Society Meeting - Lunteren, Netherlands
Duration: 5. Oct 20157. Oct 2015

Conference

ConferenceEvolutionary Demography Society Meeting
CountryNetherlands
CityLunteren
Period05/10/201507/10/2015

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fitness
bacterium
temperature
distribution
parameter

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Jouvet, L., & Steiner, U. (2015). Lifespan and reproduction of isoclonal individual E.coli in different environments. Poster session presented at Evolutionary Demography Society Meeting, Lunteren, Netherlands.
Jouvet, Lionel ; Steiner, Ulrich. / Lifespan and reproduction of isoclonal individual E.coli in different environments. Poster session presented at Evolutionary Demography Society Meeting, Lunteren, Netherlands.
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abstract = "Lifespan and reproduction are key fitness components, both of which are influences by genetics and the environment. Tracking large numbers of genotypically known individuals throughout their lives in known environments has been challenging. Here we show for isogenic individual E. coli bacteria under controlled environments how demographic parameters and distributions in reproduction and survival change across environments. We achieve this by using a microfluidic device that traps thousands of individual E. coli cells and tracks their division (reproduction) over their lifespan. Our results show substantial variation of lifespan and reproduction within the same environment, and significant shifts in mean and variance in lifespan and reproduction among environments. Both variance and mean lifespan and reproduction decreases with increased temperature, but the ratio between the two remains surprisingly constant. The environmental dependency of neutral variability among individuals suggests different adaptive paces across environments.",
author = "Lionel Jouvet and Ulrich Steiner",
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note = "Evolutionary Demography Society Meeting, EvoDemoS 2015 ; Conference date: 05-10-2015 Through 07-10-2015",

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Jouvet, L & Steiner, U 2015, 'Lifespan and reproduction of isoclonal individual E.coli in different environments' Evolutionary Demography Society Meeting, Lunteren, Netherlands, 05/10/2015 - 07/10/2015, .

Lifespan and reproduction of isoclonal individual E.coli in different environments. / Jouvet, Lionel; Steiner, Ulrich.

2015. Poster session presented at Evolutionary Demography Society Meeting, Lunteren, Netherlands.

Research output: Contribution to conference without publisher/journalPosterResearch

TY - CONF

T1 - Lifespan and reproduction of isoclonal individual E.coli in different environments

AU - Jouvet, Lionel

AU - Steiner, Ulrich

PY - 2015/10/6

Y1 - 2015/10/6

N2 - Lifespan and reproduction are key fitness components, both of which are influences by genetics and the environment. Tracking large numbers of genotypically known individuals throughout their lives in known environments has been challenging. Here we show for isogenic individual E. coli bacteria under controlled environments how demographic parameters and distributions in reproduction and survival change across environments. We achieve this by using a microfluidic device that traps thousands of individual E. coli cells and tracks their division (reproduction) over their lifespan. Our results show substantial variation of lifespan and reproduction within the same environment, and significant shifts in mean and variance in lifespan and reproduction among environments. Both variance and mean lifespan and reproduction decreases with increased temperature, but the ratio between the two remains surprisingly constant. The environmental dependency of neutral variability among individuals suggests different adaptive paces across environments.

AB - Lifespan and reproduction are key fitness components, both of which are influences by genetics and the environment. Tracking large numbers of genotypically known individuals throughout their lives in known environments has been challenging. Here we show for isogenic individual E. coli bacteria under controlled environments how demographic parameters and distributions in reproduction and survival change across environments. We achieve this by using a microfluidic device that traps thousands of individual E. coli cells and tracks their division (reproduction) over their lifespan. Our results show substantial variation of lifespan and reproduction within the same environment, and significant shifts in mean and variance in lifespan and reproduction among environments. Both variance and mean lifespan and reproduction decreases with increased temperature, but the ratio between the two remains surprisingly constant. The environmental dependency of neutral variability among individuals suggests different adaptive paces across environments.

M3 - Poster

ER -

Jouvet L, Steiner U. Lifespan and reproduction of isoclonal individual E.coli in different environments. 2015. Poster session presented at Evolutionary Demography Society Meeting, Lunteren, Netherlands.